8th grade math help pls

8th Grade Math Help Pls

Answers

Answer 1

Answer:

53

Step-by-step explanation:

14x+1+x=180

x=12

5(12)-7=53

Answer 2
Answer may be 53

Correct me if I’m wrong :)))

Related Questions

Gilbert earns $7.50 per hour washing cars.

70 - Graph the relationship between the
67.5 - number of hour Gibert works and the
60 - total amount of money he earns.
45 - Horizonally: Time worked
37.5- Vertically: Money earne $
30 -
22.5-
15-
7.5- >
0 1 2 3 4 5 6 7 8 9 10

Answers

What’s uppp How u doinnn I don’t know the answers I just need points because rn I have a map test byee

Answer:

You can put the dollars on the y axis and the hours on the x axis. Whenever the hours increase by 1, move over 1 on the x axis and 7.50 up on the y axis.

The first point should be (1, $7.50).

                                        ↑      ↑

                                    hours, money earned

The second point then will be (2, $15.00), the third will be (3, $22.50), and so on.

Step-by-step explanation:

The length of a cell phone is 1.81.8 inches and the width is 4.84.8 inches. The company making the cell phone wants to make a new version whose length will be 1.621.62 inches. Assuming the side lengths in the new phone are proportional to the old phone, what will be the width of the new phone?

Answers

Answer: 4.32432 inches

Step-by-step explanation:

This is a simple ratio problem:

we are given the old dimensions:

L x W = 1.818 x 4.848

new   = 1.62162 x ?

? = (1.62162 x 4.848)/1.818 = 4.32432

The width of the new phone should be 4.32432 inches

(PLS HELP) What is m∠A?

Answers

[tex]\underline{\underline{\large\bf{Given:-}}}[/tex]

[tex]\red{\leadsto}\:[/tex][tex]\textsf{The given triangle is isosceles triangle } [/tex]

[tex]\sf with \: AB = AC [/tex]

[tex]\green{\leadsto}\:[/tex][tex]\sf m∠B = 76⁰[/tex]

[tex]\underline{\underline{\large\bf{To Find:-}}}[/tex]

[tex]\orange{\leadsto}\:[/tex][tex]\textsf{} [/tex][tex]\sf m∠A [/tex]

[tex]\\[/tex]

[tex]\underline{\underline{\large\bf{Solution:-}}}\\[/tex]

[tex]\longrightarrow[/tex]Since the given triangle is isosceles, the angle opposite to equal sides will be equal

[tex]\quad\therefore[/tex]So, m∠A = m∠C

Now,

By angle sum property of triangle,sum of all angles inside triangle = 180⁰

[tex]\begin{gathered}\\\implies\quad \sf m∠A+m∠C+ m∠B = 180⁰ \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf m∠A+m∠A+ 76 = 180⁰\quad(m∠C=m∠A) \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf 2m∠A = 180 -76 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf 2m∠A = 104 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf m∠A = \frac{104}{2} \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \boxed{\sf{ m∠A = 52⁰}} \\\end{gathered} [/tex]

a triangle equals 180 total.
180-76 = 104
since other points (A and C) are congruent, we can divide by 2.
104/2 = 52

52 is the answer

Answer this question.
98^2+89*5/4=?

Answers

Answer:

9715.25

Step-by-step explanation:

Answer:

9715.25

Step-by-step explanation:

Determine the circumference of the given circle.

Answers

Answer:

c 200.96 cm2

Step-by-step explanation:

i take the test

3x + 3 = -2x - 7 what is the value of x hurry!!

Answers

Answer: x=-2

Step-by-step explanation:

Determine the x- and y- intercept of
y = - 1/3 x + 3
Which ordered pairs in the form of ( x, y ) are solutions to the equation?

Answers

Three ordered pair solutions for y=-1/3x+3:

(0,3) , (1, 8/3) (2,7/3)
The order is (0,3), (1,8/3),(2,7/3)

find slope please giving brainly

Answers

What you want to do with this equation is make a triangle connecting the two points you have and count the distance (rise/run) for this you would get 6/1 !
the slope is 6/1, remember rise over run

Question 1)
Convenience Store Your friends know that you stop at the local convenience store every morning on your way to school and get a bottle of juice. For your birthday, they get you a $50 gift card. Suppose that a small bottle of juice costs $2 and all you ever buy at the store is juice.1.(a)W rite a function, f, that can be used to track your gift card balance in terms of the number of bottles of juice, x, you have purchased.(b)What is the rate of change of this function? What does this mean for this scenario?(c)What will the graph of the function look like? How do you know?(d)What does )(=f“246” mean in the context of the problem?(e)Using the format given below, complete the table representing your function by choosing several different values representing the number of bottles of juiceyou have purchased and computing the remaining balance on your gift card. Then, use your table to construct ordered pairs of the form(xf,(x)).

Question 2)
Practice with Linear Functions For questions 1 and 2: Evaluate the function at the specified inputs for x. Write the input–output pairs in function notation and in a table of values. Graph each line by plotting the points you generated from the function.1.Consider the function given by fx()=-2x3. Use the tables below to determine the value of f at various x-values. Consider the function given by1gx()=+x12. Use the tables below to determine the values of g at various x-values.

Question 3)
write an algebraic function rule that can be used to model each scenario. Then explain what the slope and the vertical intercept mean in the context of the problem.7.At a local pumpkin patch you can pick your own pumpkins. There is a $5 chargeto enter the patch and then a $0.25 charge per pound of pumpkin. Let p representthe weight of the pumpkin you choose and Cp() represent the total cost of thepumpkin in terms of the weight of the pumpkin.8.You are skiing down a 1,350 meter ski slope at 60 meters per second. Let trepresent your skiing time in seconds and dt() represent the distance from thebottom of the ski slope.9.The basement of a building is 40 feet below ground level. The building’s elevatorrises at a rate of 5 feet per second. You enter the elevator in the basement. Let trepresent the number of seconds you are in the elevator and ht() represent howhigh the elevator has risen (in feet) in t seconds.10.There is a stack of old algebra books in the library. Each book is114inches thick .Let b represent the number of books in a stack and sb() represent the total height of the stack in inches.

Answers

the answers is “linear”

715,000 ___ 7.15 × 10 5 a. > b. = c. <

Answers

Answer:

b. =

Step-by-step explanation:

First, we have to figure out 7.15x10^5.

10^5=100,000

100,000x7.15=715,000

So, 715,000 is equal to 7.15x10^5.

715,000=7.15x10^5

Hope this helped...have a nice day c:

Answer:

b)=

Step-by-step explanation:

7.15* 10^5=

10^5= 100000

(1 with 5 zeros at the end)

7.15*100000= 715,000

715,000 compared 715,000:

715,000 = 715,000

Find the area of the polygon.

Answers

I think the area is 420

Step-by-step explanation:

71yd that’s should be it

Use the net to find the approximate surface area of the cylinder to the nearest square meter. (1 point) PLEASE HELP FASTTT (I don't have brainly plus so put the answer in the comments)

Answers

Answer:

The surface area of the cylinder is about 439.823 m^2, so rounded to the nearest square meter would equal about 440 m^2.

Find the surface area of the cube

Answers

Answer:

24 cm²

easy way to find surface area of a cube.

use the formula: 6a²

[tex]\hookrightarrow 6(2)^2[/tex]

[tex]\hookrightarrow 6(4)[/tex]

[tex]\hookrightarrow24[/tex]

Solution:

We know that:

[tex]\space\ Surface \space\ area \space\ of \space\ cube=\s Area \space\ of \space\ it's \space\ faces[/tex]

This means that:

[tex]\space\ Surface \space\ area = [(2)(2)] + [(2)(2)] + [(2)(2)] + [(2)(2)] + [(2)(2)] + [(2)(2)][/tex]

Simplify the expression to find the surface area.

Simplifying the expression:

[tex][(2)(2)] + [(2)(2)] + [(2)(2)] + [(2)(2)] + [(2)(2)] + [(2)(2)] \\\\\ [4] + [4] + [4] + [4] + [4] + [4]\\\\ 4[6] \\\\ 24 \space\ cm^{2}[/tex]

Hence, the surface area is 24 cm².

of the markets in a certain city, 7/10 offered customers a salad bar in 1999
percent notation:

Answers

Answer:

70%

Step-by-step explanation:

7/10 can be expanded to 70/100 and there it is simpler to see the percentage

I just want to say thank you for all the people in the brainly community helping me with my classes, but right now I need help

Find the area of a trapezoid with a height of 6 feet and bases that are 7 feet and 9 feet in length.

48 ft2
52.5 ft2
58.5 ft2
96 ft2

Answers

Answer:

48ft²

Step-by-step explanation:

A = a + b / 2 h = 7 + 9 / 2 · 6 = 48ft²

48 ft squared is the area

an expression is shown

5/6 m + 12 - 2/3 m-6

a student wrote the steps she used to determine an expression equivalent to the expression shown.

step 1: 5/6 m+12-2/3 m-6

step 2: 5/6 m-2/3 m + 12-6

step 3:(5/6) (- 2/3) m +12-6

step 4: - 10/18 m +6

in which step did the student make her first error?

explain your response

write the correct expression for this step

explain your response

Answers

Answer:

Step-by-step explanation:

[tex]\frac{5}{6}m+12-\frac{2}{3}-6[/tex]

*Note that [tex]-\frac{2}{3}[/tex] is equivalent to [tex]-\frac{4}{6}[/tex]*

[tex]Step\ 1\ \frac{5}{6}m+12-\frac{2}{3}m-6 \\\\[/tex]

[tex]Step\ 2\ \frac{5}{6}m-\frac{2}{3}m+12-6 \\\\[/tex]

[tex]Step\ 3\ (\frac{5}{6})(-\frac{2}{3})m+12-6 \\\\[/tex] <== this is where the mistake was made.

[tex]Step\ 4\ -\frac{10}{6}m+6[/tex]

Questions:

1. In which step did the student make her first error?

Explanation: The students made her first error in Step 3 because she multiplied the fractions, instead of subtracting them.

2. Write the correct expression for this step

The correct expression for Step 3:

[tex]Step\ 2\ \frac{5}{6}m-\frac{2}{3}m+12-6\\\\[/tex]

           [tex]\frac{5}{6}m-\frac{4}{6}m+12-6\\\\[/tex]

           [tex]\frac{1}{6}m+12-6\\[/tex]

           [tex]\frac{1}{6}m+6[/tex]  

Explanation: First, I converted [tex]-\frac{2}{3}[/tex] to [tex]-\frac{4}{6}[/tex]. Then subtracted the fraction. After, I subtracted the number (integers).

Hope this helps!

PLS!! HELP ASAP I WILL GIVE BRAINLIEST. write the correct answer
pic is not blurry not excuses

Answers

Answer:

The median of the first is larger than the median of the second by 12.5

Step-by-step explanation:

A box and whisker plot shows the median by using a line inside the box. Wherever the line is is the median or middle value in an ascending list. Chapter 9 is in between 75 and 80, which would be 77.5, and chapter 10 is aligned with 65, which means that 77.5-65 is 12.5 and the median for chapter 9 is greater than the median of chapter 10 by 12.5. Hope this helps!

The 2nd median is larger by 15 points.


80-65=15

\text{Time (hours)}Time (hours) \text{Earnings (dollars)}Earnings (dollars) 4 \$70.8099 \$159.30 28 \$495.60 How long does it take him to make \$132.75

Answers

Answer:

7.5 hrs.

Step-by-step explanation:

First we need to find how much Magan earns per hour using the slope-intercept form: y = mx + b

Slope (m) = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

We will be using: (4, 70.80) and (9, 159.30) to find the slope of this table..

[tex]m=\frac{y_2-y_1}{x_2-x_1} \\\\m=\frac{159.30-70.80}{9-4} \\\\m=\frac{88.50}{5} \\\\m=17.7[/tex]

y = mx + b

y = 17.7x + b

I will be using (4, 70.80) to find the value of b

(4, 70.80)

y = 17.7x + b

70.80 = 17.7(4) + b

70.80 = 70.80 + b

-70.80  -70.80

0 = b

y = 17.7x + b ==> y = 17.7x + 0 =  OR  y = 17.7x (since the value of b is 0)

The question wants us to find out how long it took Magan to make $132.75

y = 17.7x

132.75 = 17.7x

/17.7        /17.7

7.5 = x

This means that it took him 7.5 (seven and a half) hours to make $132.72

*View the attached graph to confirm the answer*

Hope this helps!

Answer:

7.5 hrs.

Hope this helps! Good luck! :)

BRAINLIEST IF YOU ANSWER FAST AND 100 POINTS!? Both are two different answers.
1. G (7, 3), H (-1, 1), and I (-3, 4) are the coordinates of a triangle's vertices. If the triangle is reflected over the x-axis, what are the coordinates of the image?

G '(7, -3), H '(-1, -1), I '(-3, -4)
G '(7, 3), H '(-1, -1), I '(-3, 4)
G '(7, 3), H '(-1, 1), I '(-3, -4)
G '(7, -3), H '(1, -1), I '(-3, -4)

2. A (2, 5), B (6, -3), and C (8, 0) are the coordinates of a triangle's vertices. If the triangle is reflected over the y-axis, what are the coordinates of the image?

A '(-2, -5), B '(-6, -3), C '(8, 0)
A '(-2, 5), B '(-6, 3), C '(-8, 0)
A '(-2, 5), B '(-6, -3), C '(-8, 0)
A '(2, -5), B '(6, 3), C '(8, 0)

Answers

Answer:

Under a reflection in the x- axis

a point (x, y ) → (x, - y ), hence

G(- 2, 1) → G'(- 2, - 1)

H(- 7, 4) → H'(- 7, - 4)

What is the median of this data set?

{11, 13, 13, 14, 14, 16, 18, 23, 24}

Enter your answer in the box.

Answers

Answer:

14

Step-by-step explanation:

Because the median is the middle number when the data set is in order least to greatest so you already have it in least to greatest so thank you for helping me.

and for extra just in case.

Mean=16.222

the mean= the average of the data set

Mode is 13,14

The mode is the number that appears the most in a data set and 13 and 14 appear twice.

Your range is=13

Range is the highest number subtracting the lowest number so 24 -11 which =13

Minimum is 11 because the minimum is the lowest number in data set..

Maximum is 24

Maximum is the highest number in the data set.


I hope this helps have a awesome day:)

The median of the provided data set is 14, as the middle value of this data set arranged in increasing order is 14.

What is medians of the data set?

The median of the data set is the middle value of the data when data is arranged in the increasing or decreasing order.

The given data set in the problem is,

[tex][{11, 13, 13, 14, 14, 16, 18, 23, 24}][/tex]

In this data set, there are total 9 values given in which,

The lowest value is 11  The highest value is 24.

The data is arranged in increasing order. As the median of the data set is the middle value of the data when data is arranged in the increasing order.

The middle value of the data set is 5.

[tex]m=14[/tex]

Thus, the median of the provided data set is 14, as the middle value of this data set arranged in increasing order is 14.

Learn more about the median here;

https://brainly.com/question/26177250

Hello everyone if you could help me that would be awesome

Answers


I don’t think I can help you sorry
Part A) 27.93/7 for small bags and 66.98/20 for large bags
Part B) $3.99 for small bags and 3.35 for large bags
Part C) the large bags is the better buy because the small bags are $0.64 more than the large bags.

(20 POINTS) What is m∠BAC?

Answers

Answer:

40°

Step-by-step explanation:

angle on a straight line = 180°

therefore

140+ m<BAC = 180°

m<BAC = 40°

Answer:

the angle BAC is 40 degrees

Katherine recorded the weekly number of hours she worked at her summer job. If the mean of the data is 20 with a standard deviation of 5.7, circle all values that fall within one standard deviation of the mean. {9, 14, 18, 20, 23, 24, 25, 27}

Answers

so the mean is 20 standard deviation is undefined

I need help answer with explanation please

Answers

Answer:

1. Changing speed. It does not stay constant instead it changes speed.

2. 1.86

Step-by-step explanation:

You would find how much it multiples by on the chart to the left and find its never the same number which would make it change speed but also for number 2 you would put all the numbers in order that you have gotten and the middle number would be your average.

Hope this helps

Have a good day!

Set up a proportion and use cross multiplication to solve.

74.76 is 178% of what number?
133
42
238
96

Answers

Answer:

42

Step-by-step explanation:

Let the number be y

178% = 178/100

178% of y = 74.76

178/100 x y = 74.76

178y = 74.76 x 100

y = 7476/178

y = 42

Choose the model for the problem 1/4 divided by 5 .
5/8
3/40
1/20
1/4

Answers

Hey there!

1/4 ÷ 5

=> 4/1 × 5/1

=> 20/1

Therefore, 20/1 is the answer

Answer:

[tex]\frac{1}{20}[/tex]

Step-by-step explanation:

[tex]\frac{1}{4}\div 5\\\\ \frac{1}{4}*\frac{1}{5}\\\\\frac{1}{20}[/tex]<== final answer

Hope this helps!

Savvas question. can anybody find the answer to this?

Answers

Answer:

Step-by-step explanation:

(10-6)/(0-24)

=4/(-24)

=0.166

the answer to your question is 0.166

q wwwwwwwwwwwestion in picture

Answers

Answer:

no answer no problem sorry

To make hummingbird nectar you must use 4 cups of water and 1 cup of sugar. What is the ratio of water to sugar?

Answers

4:1,

there are 4 cups of water for every 1 cup of sugar
yes the ratio is 4:1 (water to sugar)

Determine the length of the unknown side of the right triangle. If it is not an exact answer, what integer is it closest to? (Don't forget to include units!)​

Answers

Answer:

=> The third side of the triangle is 53 mm

Step-by-step explanation:

We know that this is a right angled triangle ,

so , by using Pythagoras theorem we can find out the third side of the triangle ,

=> P²+B²= H²

=> 7²+2² = H²

=> 49+4 = H²

=> 53 = H²

=> √53 = H

The third side of the triangle is 53mm

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