MATHEMATICS MIDDLE SCHOOL

Determine the slope and y-intercept of each linear equation:1) y= -2x +4

2) 5x +7y = 1

Answers

Answer 1
Answer: 1) y = -2x + 4

          slope: -2 (coefficent.)
           y-intercept: 4 (constant)


2) 5x + 7y = 1
    -5x         -5x

7y = -5x + 1
/7          /7

y = -5/7x + 1/7

          Slope: -5/7 (coefficent.)
          y-intercept: 1/7 (constant)

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In 1995 Mexico's population was 92,202,000. That same year Mexico's land area was 756,066 square miles and the U.S.A.'s land area was 3,536,278 square miles. If the population of Mexico was spread evenly over the land area of the United States, about how many Mexican people would there have been in each square mile?

Answers

In 1995 Mexico's population was 92,202,000. That same year Mexico's land area was 756,066 square miles and the U.S.A.'s land area was 3,536,278 square miles.

Hank bought 5 CDs for $64.75. If each CD cost the same price, how much did each cost?

Answers

64.75/5= $12.96

you simply divide 64.75 by 5 

Which system of inequalities has a solution set that is a line?[x+y23
[x+y s3
[x+y2-3
Extysa
0
[x+y>3
(x + y <3
(x+y> -3
(x+y<3

Answers

Answer:

x + y ≥ 3

x + y ≤ 3

Step-by-step explanation:

In the picture attached, the problem is shown.

The solution to the system:

x + y ≥ 3

x + y ≤ 3

is the line x + y = 3

In order to get a solution to a system of inequalities that is a line, we need the same equation on the left (here, x + y), the same constant on the right (here, 3), and the ≥ sign in one inequality and the sign ≤ in the other one.

What is 0.96 rounded to the neatest tenth.

Answers

Answer:

1.0

Step-by-step explanation:

6 is greater than 5 therefore it rounds 9 up to the next number which is 10, 1.0 or just 1.
0.96 rounded to the nearest tenth is 1.0

Which expression is equivalent to pi*-80

Answers

Answer:

-80*pi

Step-by-step explanation:

pi*-80 can be written alternatively as -80*pi.

Please help me i’m very confused

Answers

The ratio of dry rice to water is 1 to 2. This means that water is two times more than dry rice. Since the chef uses 9.5 cups of dry rice, the chef needs 19 cups of water.

You can check by using fractions. 9.5 / 19 in simplified form is 1/2, which is 1:2 in ratio.

It would be 9.5:19 just multiply 9.5 by 2
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