MATHEMATICS MIDDLE SCHOOL

Can someone help me with this two problems?

Answers

Answer 1

Answer:

2x+4y=0

substitute y with 0

2x+4(0)=0

solve the equation

2x+0=0

2x=0

divide by 2 on both sides

x=0

4x+8y=7

substitute y with 0

4x+8(0)=7

solve the equation

4x+0=7

4x=7

divide by 4 on both sides

x=7/4 or x=1 3/4 or x=1.75

3x-7y=-29

2x+2y=6

solve the bottom equation

3x-7y=-29

x=3-y

substitute for x

3(3-y)-7y=-29

solve the equation

y=19/5

now substitute for y

x=3- $(19)/(5)$

solve for x

x=-4/5

the possible solution of the system is the ordered pair

(x,y)=( $-(4)/(5) ,(19)/(5)$ )

Related Questions

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If 3/4 and 12/x are equivalent, what is the value of x?
2+4•5+1=26 Where do I put the parentheses to make the equation true
A manatee population decreases by 15 manatees each year for 3 years. Find the total change in the manatee population.
Can someone please help me?

To make purple paint, Mya mixed 2/5 cup of red paint with 5/8 cup of blue paint. She wants to make a larger batch of the purple paint. How much red paint is needed to mix one cup of blue paint?

Answers

Answer: so i need 10/15 cups of red paint

Step-by-step explanation: 2/5 x 8/5 = 16/25

2/5 -----> 1

10/25 -----> 8/5

1 ÷ 5/8 = 8/5

Is 38.5 mm bigger than 10 cm?

Answers

Well, if you use KHD---DCM, or King Henry does --- dives catching mice or, Kilometers,Hectometers,Dekameters,base,Decimeters,Centimeters, Millimeters. So you see that Millimetres are after Centimeters so, 10 cm is bigger than 35.5mm

Write a number between 40 and 60. The number is divisible by 6 and has exactly 10 factors.

Answers

there is 60 but only jas 9 facrors

The answer is is sixty

Marisol is painting on a piece of canvas that has an area of 180 square inches. The length of the Painting is 1 1/4 times the width. What are the dimensions of the painting

Answers

let x be a width
1 1/4x be the length (or it can be 5/4 i prefer this one)

formula for rectangle
lxw=a
5x/4(x)=180
4[5x^2/4=180]4
5x^2=720
x^2=144
x=12

so width is 12 and length is
5x/4
5(12)/4
60/4
=15

Which of the following is equal to |-7|?a. the opposite of 7
b. -|7|
c. -7
d. -(-7)

Answers

-(-7) because when multiple (-) with (-) the result came out as +

I think the answer is d

Between 0-99 the greatest number of prime numbers end in which digit 0,1,2,3,4,5,6,7,8 or 9

Answers

1 and 0
Because a prime number only has factors that are 1 and 0
Hoped this helped you!
Please mark brainliest!

0, 3
Hope this helped you! If u need any other help just ask me

Other Questions

In the following number, which digit is in the hundredths place?745312.269784

Ms. Turner drove 825 miles in March. She drove 3 times as many miles in March as she did in January. She drove 4 times as many miles in February as she did in January. What was the total number of miles Ms. Turner drove in February?

Which fraction is represented by point A on the number line?

The set of ordered pairs (-1,8), (0, 3), (1, -2), and (2-7) represent a function. What is the range of the function?{xx=-1, 0, 1, 2} {y y=-7, -2, 3, 8} {xx=-7, -2, -1,0, 1, 2, 3, 8} {y y=-7, -2, -1, 0, 1, 2, 3, 8}