Mathematics High School

Solve the system by substitution.
y = 4x – 8
Y = 2x

Answers

Answer 1

first one if u solve for y is   y=4x-8

solve for x is x =y/4+2

second one is if u solve for y is y=2x

if u solve for x is x =y/2

Step-by-step explanation:

hope this help

Related Questions

Solve for x solve for x solve for x

Answers

Answer:

91

Step-by-step explanation:

add the given numbers then subtract the solutions from 180. as all triangles sides add up to 180.

Answer:

the answer is x= 91


The diagram below models the diameter of the bicycle wheel
21.75
Which of the following is closest to the distance of the length when the bicycle wheel
makes 1 revolution?
A7 inches
B 25 inches
C34 inches
D69 inches


Can anyone help me!!

Answers

Answer: (21.75 / 2) * 2 * pi = 68.42...in, answer D.

Explanation: one revolution from a wheel will be a 360 degree rotation, meaning that if you had laid your finger on the outside of the wheel as it made its full rotation, your finger would have touched the entire circumference of the wheel. Thus, we can represent the length of 1 revolution as the circumference. Thus we take the diameter, and divide it by 2 to get the radius. Then we simply multiply by 2 * pi * r (r = radius). This is the formula for the circumference of a circle.

A triangle has an angle that measures 75°. The other two angles are in a ratio of 8:13. What are the measures of those two angles?

° and
°

Answers

Answer:

Step-by-step explanation:

40 and 65

compare fractions, -10 1/5 and -10 1/4

Answers

Answer:

4/20 - 5/20 = -1/20, and therefore, since the answer is negative, you've proven that 5/20 (or the original 1/4) is actually the bigger number, not the 4/20 (or 1/5).

Step-by-step explanation:

Three fifths of the students in the cafeteria bought their lunch from the school. The rest brought their lunch from home. 27 of the students bought their lunch. Let t represent the total number of students in the cafeteria.

Answers

Answer:

45 students

Step-by-step explanation:

Three fifths of the students in the cafeteria bought their lunch from the school. The rest brought their lunch from home. 27 of the students bought their lunch. Let t represent the total number of students in the cafeteria.

We are to calculate the total number of students in the cafeteria.

Fraction of the students in the cafeteria that bought their lunch from the school = 3/5

Number of the students that bought their lunch = 27 students

The total number of students can be calculated as:

3/5 Of t = 27 students

3/5 × t = 27

Cross Multiply

3t/5 = 27

3t = 27 × 5

t = 27 × 5/3

t = 45 students

Therefore, the total number of students in the cafeteria = 45 students

The ratio between the areas of two similar polygons is 3i4. What is the ratio between the lengths of their corresponding sides
What is the area of an equilateral triangle with sides of length 6?

Answers

Answer:

11

Step-by-step explanation:

HELP PLEASE!! Brainliest to whoever gets it right.

Answers

Answer:

A

Step-by-step explanation:

i think you might want to wait for other people because i dont  know for sure

My mother purchased 8 Pepsi products at Bi-Lo for $14.00. What is the price per
product?

Answers

Answer:

1.75 per product

Step-by-step explanation:

Answer:

112

Step-by-step explanation:

You would multiply 8 by 14 dollars because your finding the price per product Pepsi bottle so your answer would be 112 dollars.

Dont need to show work

Answers

Answer:

100 degrees

Step-by-step explanation:

They have to add up to 180 because they're on a straight line together.

180 - 80 = 100 degrees

Imagine that you gets an email one morning . It appears to be from your bank . The email warns that someone broke ( 1) .......... your account . It says that you need to (2 )....... in to check some things . You click the link in the email . It takes you to a site that looks very much like your bank's . You enter your username and (3 ).............You submit the form . You've just been phished ! Phishing is a type of attack that happens over the Internet . Users receive an email or text message that seems like it came from a (4)............. source. These users are being (5 )............ They are interacting with dangerous hackers . The attackers copy trusted companies . They send users to web pages that look like the ones we use everyday . When users login or provide sensitive information , the attackers steal this data .

1- into
with
for

2- signed
signing
sign

3- crossword
password
passroad

4- trusted
trust
trusting

5- deceiving
deceive
deceived​

Answers

SOMEONE PLEASE ANSWER MY LATEST QUESTION

1. the first to answer get brainlyest if its right
(06.01 LC)
3^4 + 2 ⋅ 5 =
. (Input whole numbers only.) (1 point)
2.
(06.01 MC)
What is the value of the expression 2^2 + 4^2 ÷ 22? (1 point)


3


6


8


16

Answers

Answer:

1. 453

2. 39.5

Step-by-step explanation:

Answer:

8 I think

Step-by-step explanation:

A surfboard has an original price of $259. It is on sale for 55% off the original price.

Answers

I'm not sure what answer you need for this question?
original price: 259
sale: 55% off
55%=0.55
so 259×0.55=142.45
142.45 is the 55% of the original price
259－142.45=116.55
116.55 is the price after sale.
hope this would help. (*^ω^*)/

Answer:

$116.55

Step-by-step explanation:

If original price= $259

And sale= 55% off original price

Then price after sale=(100%-55%) of $259

Working:

100%-55%=45% or [tex]\frac{45}{100}[/tex]

45% of $259 or [tex]\frac{45}{100}[/tex] x [tex]\frac{259}{1}[/tex]= $116.55

write 2+3n=4n in a sentence for the equation

Answers

Two plus three times n equals 4 times n

The given equation can be written in the form of the expression "The sum of two and three times a number is equal to four times the number".

What is an equation?

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

The given equation can be broken into expressions and then can be written in form of phrases such as,

2 + 3n → Sum of two and three times a number4n → Four times the number

Hence, The given equation can be written in the form of the expression "The sum of two and three times a number is equal to four times the number".

Learn more about Equation here:

https://brainly.com/question/14686792

#SPJ2

John wants to gain weight for his wrestling team so he can compete in a different weight class. He currently weighs 187 pounds, and is gaining weight at a rate of 1.5 pounds per week. Which equation below models this situation * number of weeks y = total weight (pounds )

Answers

Answer:

The equation would be 1.5w + 187 = y.

Step-by-step explanation:

1.5 lbs per week

already 187

The variable would be 'w'

so 1.5w +187 = y

Can you divide any number by zero?

Answers

Answer:

well basically no so i say no

Step-by-step explanation:

you can but you wouldn't get a answer because you would only get the same answer so..

Answer:

When we try to divide by zero, things stop making sense

Step-by-step explanation:

Here are the first five terms of a number sequence
19
23
27
31
35
Find the 10th term in the sequence

Answers

1st is 19
2nd is 23
3rd is 27
4th is 31
5th is 35
6th is 39
7th is 43
8th is 47
9th is 51
10th is 55
This is because you are adding 4 each time, the rule of the sequence is 4n+15

describe the sequence of translations used to move figure 1 onto figure 2​

Answers

Answer:

dilation 10 left and 3 down

Step-by-step explanation:

highschool math pls help

Answers

Answer:

-7

Step-by-step explanation:

which point 1 on the number line?
0
1/6
A
B
C
D
Choose 1 answer
A
B
C
D
​

Answers

Answer:

kind of confusing to read

Step-by-step explanation:

what is the ratio of 60 and 12 1 to 5,1 to 4, 4 to 1,or 5 to 1​

Answers

Answer:

5 to 1

Step-by-step explanation:

Plz mark brainliest

IS THIS A LINEAR FUNCTION? YES OR NO

Answers

No it is a nonlinear function notice how it is curved and not a straight line

pls answer help this is due today and i need the answer

Answers

Answer:

<1 and <3 are vertical angles and  <2 and <4 are vertical angles

Step-by-step explanation:

Hope this helps. pls mark me brainliest.  :)

Answer:

2 and 4 are vertical angles

Step-by-step explanation:

help show work due asap​

Answers

Answer:

77 pictures

Step-by-step explanation:

You are trying to find 18% of 430.

18/100 = 9/50 * 430

756/10 = 75.6

77 is the closest choice out of all the other choices.

Evan bought a bag of Skittles, ate 13 of them, then distributed them evenly into 4 bowls. If there are 64 Skittles in each bowl, how many were originally in the bag?
For the problem, find a variable and set up an equation, then solve.

I need this answer quick!

Answers

Answer:

There were 269 skittles in the bag originally.

Keywords: multiplication, addition

Step-by-step explanation:

Skittles ate by Evan = 13

No. of bowls = 4

No. of skittles in each bowl = 64

As the skittles are distributed evenly therefore,

Skittles in 4 bowls = 64*4

Skittles in 4 bowls = 256

Total skittles = Skittles in 4 bowls + skittles ate by Evan

Total skittles = 256 + 13

Total skittles = 269

There were 269 skittles in the bag originally.

The answer is 320 just add all of the 64’S Hope it helped :)

Which of the following would be the best method for investigating the correlation between the hibernation habits of bears and the temperature for 90 days prior to their hibernation?

A. Survey
B. Observational study
C. Randomized experiment
D. Experimental study

Answers

Answer: Observational study

Step-by-step explanation: I just took the test

Answer:

observational study

A bracelet is marked down 20%. The original price is $37.50. How much is the discount?
$45.00
$7.50
$30.00
$1.88​

Answers

Answer:

7.5

Step-by-step explanation:

well 20 percent of 37.5 is 7.5

37.5-7.5 is 30 so the price after the discount is added is 30

Answer:

7.5

Step-by-step explanation:

You multiply 20 X 37.50 and get 750 then divide it by 100 and get 7.5 as the answer. :)

Write the sum −3+5−7+9−11+13−15+17−19+21 using sigma notation. The form of your answer will depend on your choice of the lower limit of summation.

Answers

Answer:

Kindly check attached picture

Step-by-step explanation:

Given the expression : −3+5−7+9−11+13−15+17−19+21

Number of values : 1 up to 7

Take initial as - 1, since the expressed value starts with negative

Difference of 2 between the absolute value of each successive integer.

An equation is shown below:

5(2x - 8) + 15 = -15

Write the steps you will use to solve the equation and explain each step. (5 points)

Answers

-15 from each side
5(2x-8)=-30
expand the brackets
10x-40=-30
+40 from each side
10x=10
x=1
The answer of this question is x=1

Which expressions are equivalent to − 90 − 60 w?

Answers

Answer:

A : -30(3+2w)

B : (-9-6w) ⋅ 10

E : −20(4.5 + 3w)

Using distributive property:

A : -30(3+2w)  =  -90 - 60w          : equivalent to -90 - 60w

B : (-9-6w) ⋅ 10  = -90 - 60w          : equivalent to -90 - 60w

C : -3(30 - 20w)  = -90 + 60w       : NOT equivalent to -90 - 60w

D : (6 + 4w)×15  = 90 + 60w          : NOT equivalent to -90 - 60w

E : −20(4.5 + 3w) = - 90 - 60w     : equivalent to -90 - 60w

SO THAT MEANS

A : -30(3+2w)

B : (-9-6w) ⋅ 10

E : −20(4.5 + 3w)

ARE THE ANSWERS

Step-by-step explanation:

Bryan’s hockey team is purchasing jerseys. The company charges $250 for a one-time set-up fee and$23 for each printed jersey. Which expression represents the total cost of x number of jerseys for the team?
1) 23x
(2) 23x + 250
(3) 23 + 250x
(4) 23(x + 250)

Answers

Answer:

(2) 23x + 250

Step-by-step explanation:

We are given that

Company charges  for one-time set up=$250

Charge for each printed jersey=$23

x=Number of jerseys for team

We have to find the expression which represents the total cost of x number of jerseys for the team.

Total cost of x jerseys printing=[tex]23\times x[/tex]

Total cost of x jerseys printing[tex]=23x[/tex]

Therefore,

Total cost of x number of jerseys for the team=250+23x

Hence, option (2) is true.

(2) 23x + 250

Other Questions
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