Mathematics High School

solve the system of equations please help

Answers

Answer 1

It is number 3 good luck

Related Questions

17 and 18 guys
aaaaaaaaaaaa I can do the rest but i just need to get this done & over with

Answers

Answer:

17a 3.5 hours

17b 3 hours

18. w=10

Step-by-step explanation:

17a 60 miles/hour and 210 miles

so 210/60 = 3.5 hours

17b, 70 miles/ hour and 210 miles

so 210/70 = 3 hours

18. 1.5/2=7.5/w

1.5w=7.5*2

w=10

after riding a bike 9 miles,Alex’s total time was 40 1/2 minutes. Find his time per mile.

Answers

40.5/9= 4.5 minutes per mile.

PLS HELP ASAP THANKS ILL GIVE BRAINLKEST THANKS

Answers

Answer:

the third answer, y= (1/3) x

Answer:y=(1/3)x

Step-by-step explanation:

You are 5 years less than your older brother express the age of your elder brother in terms of your age using variable

Answers

Answer:

Step-by-step explanation:

If x represents your age then the age of your elder brother

is x + 5 years.

Answer:

Your age = y

So the variable expressing the age of your elder brother would be y + 5 (years).

Hope that helps?

PLS HELP! 31 POINTS!!)) John plans to practice piano at least 2 1/2 hours this weekend. If he practices 1 1/6 hours on Saturday and 1 1/4 hours on Sunday, will he meet his goal? A. Yes; he will practice a total of 2 5/12 hours, and 2 5/12 > 2 1/2 . B. No; he will practice a total of 2 5/12 hours, and 2 5/12 < 2 1/2 . C. Yes; he will practice a total of 2 7/12 hours, and 2 7/12 > 2 1/2 . D. No; he will practice a total of 2 7/12 hours, and 2 7/12 < 2 1/2 .

Answers

Answer:

2 hours 30 minutes = goal

Saturday = 1 hour 10 minutes

Sunday = 1 hour 15minutes

Total = 2 hours 25 minutes

No he will not meet his goal. He will be short 5 minutes of practice.

Explanatiory:

if I’m wrong, I’m sorry. If I’m right, mark me brainlest!

Answer:

ill see im on the yest rn

Step-by-step explanation:

Joe started to save money to purchase a new game console. His savings at the end of the first week included a jar of 468 nickels and dimes. The total value of the coins was $34.40. Which system of equations below would be the best to use to find the number of nickels and dimes Anthony had at the end of the first week?

Answers

Answer:

0.05x + 0.10y = 34.40

x + y = 468

Step-by-step explanation:

The The guy above is correct

I need help with this problem:
Which system of equations belongs to the graph?
a) 2x - 2y = 6 and 2x + 3y = 6
b) 2x + 2y = 6 and 4x – 6y = 12
c) x - 2y = 6 and 4x + 6y = 12
d) None of the above

Answers

Answer:

Step-by-step explanation:

2x + 2y = 6 ---> y=-1x+3

4x – 6y = 12 ---> y= 4/6x -2

Answer:

I think it is a

Step-by-step explanation:

You have to solve those systems first. In the first option, x would be equal to 3 and y would be 0. Therefore, the intersection is (3; 0)

Please give atleast two answers 20 POINTS

Answers

Answer:

3x^3

Step-by-step explanation:

First: you multiply the exponents inside the parenthesis with the one outside.

12*1/3= 4

3*1/3=1

you get 81x^(4)/3x

divide everything by 3: 27x^(4)/x

now subtract exponents (when dividing), you get: 27x^3

Now 1/3 is the same thing as cube root, so cube root of 27 is, thus the answer is: 3x^3

Help me please

H please

Answers

Answer:

Step-by-step explanation:

Someone please help me with this I learned this in class of the day I don’t remember it

Answers

Answer :

A) 4 and 7 are vertically opposite angles
B) 3 and 6 are alternating angles
C) 6 and 8 are corresponding angles
D) 1 and 8 are exterior alternating angles

This is the right answer :)

A two-digit number is such that the sum of its digits is 12 and the ones digit is twice its tens digit. Find the number.

Answers

Answer:

Step-by-step explanation:

4 plus 8 is 12 and the ones digit is double the tens digit

800 students were surveyed to find out their favorite subject. 35% chose Math. How many students chose Math?

Answers

Answer:

35% of 800 = 280

...........

35 divided 100 of 800. Or
35% by 800 = 280

PLZZ HELP!
Pete mixed 4 1/6 cups of popcorn with 3 5/6 cups of pretzels. He then divided the snack into bags with cups in each. After dividing, how many bags of snack bags will Pete have? ( btw it needs to be in fraction)

Answers

Answer:

3/10

Step-by-step explanation:

u divide the fractions and u got a decimal I change the decimal and got 3 so I changed it to a fraction and got 3/10

100
O () = 97 +18
or()- +2
x= +
OF (x) = 97 +2
F(x) = -27 + -
10

Answers

Answer:

9x+2

Step-by-step explanation:

the inverse of the function is the opposite. 1/9 becomes 9 and negative 2 becomes positive 2

Answer:

first option

Step-by-step explanation:

let y = f(x) and rearrange making x the subject

y = [tex]\frac{1}{9}[/tex] x - 2 ( add 2 to both sides )

y + 2 = [tex]\frac{1}{9}[/tex] x ( multiply through by 9 to clear the fraction )

9y + 18 = x

change y back into terms of x with x = [tex]f^{-1}[/tex] (x) , then

[tex]f^{-1}[/tex] (x) = 9x + 18

find the ratio

3 ounces cost $2.73

Answers

Answer:

1 : $0.91

Step-by-step explanation:

divide 3 by 3

divide 2.73 by 3

1:0.91

a) write 63 as the product of prime numbers.
write the prime numbers is ascending order.

b) work out the highest common factor of 63 and 105.

Answers

63 as the product of prime numbers is 3 x 3 x 7.

The highest common factor of 63 and 105 is 21.

Prime numbers are numbers that are only divisible by one and that number. Examples of prime numbers are 5, 7, and 11.

Factors of 63 are: 1, 3, 7, 9, 21, and 63

Prime numbers that are products of 63 = 3 x 3 x 7

The factor of a number is a number that can divide another number without leaving any remainder.

Factors of 63 = 1, 3, 7, 9, 21, and 63 Factors of 105 = 1, 3, 5, 7, 15, 21, 35 and 105.Common factors = 1, 3, 7, 21 Highest common factor = 21

To learn more about prime numbers, please check: https://brainly.com/question/4184435

What is 2/5 divided by 2/3

Answers

Answer:

0.6

Step-by-step explanation:

Trust me

PLZ mark as brainliest

PLEASE NO LINKS AND NO NEGATIVITY

Answers

Answer:10r-54

Step-by-step explanation: you need to distribute following pemdas

Dumas can’t do that bros failing math

FIRST CORRECT ANSWER GETS BRAINLIEST:

In the African nation of Niger, French is the official language, while in Nigeria, English is the official language. Why would these two countries have different official languages that are European In

origin?

They were colonized by different European countries

They are historically at war with one another.

They needed a lingua franca to be able to communicate.

Answers

Step-by-step explanation:

They needed a lingua franca to be able to communicate.

Find the value of the expression 8a +b, if a=3 and b= 1

a) 23 b) 29 c) 30 d) 25

Answers

8a + b

a=3

b=1

(8×3)+1

=24+1

=25

the answer is d)25

Last month the price of a particular pen was $1.20. This month the price of the same pen is $1.50. What is the percent increase in the price of the pen

Answers

Answer:

25%

hope this helps

To the nearest hundredth, find the area of a circle with a circumference of 69.08 feet. Use 3.14 for π.

Answers

Answer:

The radius would be 11ft.

Step-by-step explanation:

So what we need to do is, 69.08 divided by π (3.14) which equals to 22. 22ft is the diameter but we are looking for the radius, so we need to divide that by 2 which is 11ft.

Hope that helps. x ps. Love the fact the picture is upside down :)

2k+5=21 answer this problem plz

Answers

Answer:

k=8

Step-by-step explanation:

2k+5=21 (-5 on both sides to get rid of +5)

2k=16 (divide by 2 to get rid of that 2 in front of K)

k=8

you select a marble at random and then put it back. If you do this 8 times, what is the best prediction possible for the number of
times you will pick a red marble?

8 marble in total and 4 are green, 3 blue, and 1 red hope it help the problem :)

Answers

Probably 2/5 chances

Please help will mark brainliest 12 x 12 - 44

Answers

Answer:

(12 x 12) - 44 = 100

Step-by-step explanation:

Find the mean, median and more for the following data sets. (15, 13, 19, 17, 25, 13, 23, 18, 19, 17, 21)

Answers

Step-by-step explanation:

hope it will help you ....

David is making rice for his guests based on a recipe that requires rice, water, and a special blend of spice, where the rice-to-spice ratio is 15:115:115, colon, 1. He currently has 404040 grams of the spice blend, and he can go buy more if necessary. He wants to make 101010 servings, where each serving has 757575 grams of rice. Overall, David spends 4.504.504, point, 50 dollars on rice.
What is the price of rice per gram?
dollars per gram of rice

Answers

Answer:

Price of rice per gram = $ 0.006 per gram or 0.6 cents per gram .

Step-by-step explanation:

Given: David wants to make 10 servings, where each serving has 75 grams of rice.

Total quantity of rice required = 10 x 75 = 750 grams

Overall, David spends 4.50 dollars on rice.

i.e. cost of 750 grams of rice = 4.50 dollars

Price of rice per gram =(cost of 750 grams of rice ) ÷ 750

= (4.50 dollars ) ÷ 750

= $ 0.006 per gram.

Price of rice per gram = $ 0.006 per gram.

Answer:

0.006

Step-by-step explanation:

What is 4x+3x? Write solution.

Answers

Answer:

Step-by-step explanation:

4x ( linear function) + 3x ( linear function) = 7x

[tex]\huge\boxed{Hello!:)}[/tex]

Combine like terms:

4x+3x=7x

Remember, we can add terms with the same variable together, but we can't add terms with different variables.

[tex]\huge\boxed{Hence,\:the\:answer\:is\:7x.}[/tex]

[tex]\huge\underline{Hope\:it\:helps!}[/tex]

[tex]\boxed{DreamyGal\:here\:to\:help!:)}[/tex]

5w+4w=18 simplify

how do you do this??

Answers

Answer:

Solved: w = 2

Step-by-step explanation:

Combine like terms

5w+4w = 9w

Isolate or make w alone

9w= 18 so divide both sides by 9 to make w alone

9w ÷ 9 = w

18 ÷ 9 = 2

w = 2

Answer:

you just add 5w and 4w and taht is 9w

[tex]9x = 18 \\ w = 18 \div 9 \\ w = 2[/tex]

The slope of the line below is - Write a point-slope equation of the line
using the coordinates of the labeled point.
(4,4)
10
A. y+ 4 = (x+4)
O B. y+4= - (x + 4)
O C. y 4 = (x - 4)
OD. y-4 = -(x-4)

Answers

Answer:

Step-by-step explanation:

pint slope form:

(y-y1)=m(x-x1)

do just olug in the point and the slope into the equation

(y-4)= -8/7 (x-4)

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