MATHEMATICS MIDDLE SCHOOL

Write and solve a system of equations to find the value of each variable

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

2x+5y=12

3x+4y=11

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3(2x+5y)=3(12)

-2(3x+4y)=-2(11)

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6x+15y=36

-6x-8y=-22

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7y=14

y=14/7=2

2x+5(2)=12

2x+10=12

2x=12-10=2

x=2/2=1

x=1, y=2. (1, 2)

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I just provided you an example of a system of equations and I already solved it for you.

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Haru needs to be at school at 8:15.If it takes him 20 minutes to walk to school,15 minutes to eat breakfast,and 12 minutes to get dressed and brush his hair,what time should he get up?

Answers

Answer:

7:28

Step-by-step explanation:

If you want to estimate, 7:30.

20 + 15 + 12= 47 minutes

If it takes him 47 minutes to get ready, then 47 minutes away from 8:15 is 7:28.

Which list is ordered from least to greatest?A. -0.04, -0.042, -0.4, -0.42
B. -0.4, -0..4, -0.42, -0.042
C. -0.042, -0.04, -0.4, -0.42
D. -0.42, -0.4, -0.042, -0.04

Answers

i think it's D because the farther you are away from the 0 which is left the least you are and the closer you are to the 0 which is going on to the right the greatest you are. hope it help

Is 6/7 greater than 4/6?

Answers

Yes, because 6/7 is the same as 36/42 and 4/6 is the same as 28/42. It is easy to see that 6/7 is greater than 4/6

yes, because there are smaller pieces than 4/6.

steven has a rectangular rug with a perimeter of 16 feet the width of the rug is 5 feet what is the length of the rug

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so perimeter is equal to 2 lengths and 2 width so the equation would be P=2L+2W. you know width so you plug in 5 for W then solve for L and you should get L=3

This box has the same length , width, and height as the 2 basketballs. Which expression gives the volume of the empty space encircling the basketballs inside the box?

Answers

Answer:

$4,608(6- \pi)\ cm^(3)$

Step-by-step explanation:

we know that

The volume of the empty space encircling the basketballs inside the box is equal to the volume of the box minus the volume of the two basketball inside the box

The volume of the box is equal to

$V=LWH$