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3 years ago

Inequalities Word Problem:

Mathematics

1 answer:

OLEGan [10]3 years ago

3 0

Answer:

37.5 hours.

Step-by-step explanation:

750-300=450

450/12= 37.5

Liza needs to work 37.5 hours.

To check work:

37.5*12=450

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How do i solve using the substitution method? x+y=-1 y=-2x

leonid [27]

Answer:

$(1, -2)$

Step-by-step explanation:

Step 1: Set the second equation into the first

$x + (-2x) = -1$

$x - 2x = -1$

$-x / -1 = -1 / -1$

$x = 1$

Step 2: Solve the second equation

$y = -2(1)$

$y = -2$

Answer: $(1, -2)$

4 0

3 years ago

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What is the rate of change of the linear relationship modeled in the table (-2,5) (-1,4) (0,3) (1,2)

poizon [28]

The rate of change of the linear relationship is -1.

Explanation:

It is given that there is a linear relationship between all these points, these points lie on a straight line.

The equation to find the slope passing through two points $\left(x_{1}, y_{1}\right)$ and $\left(x_{2}, y_{2}\right)$ is given by

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Substituting the points $(-2,5)$ and $(-1,4)$ , we get,

$\begin{aligned}m &=\frac{4-5}{-1+2} \\&=\frac{-1}{1} \\&=-1\end{aligned}$

Thus, the slope is -1.

Thus, the rate of change of the linear relationship is -1.

8 0

4 years ago

4.5 meters equals how many centimeters

icang [17]

450 centimeters because there are 100 centimeters in a meter.

4 0

4 years ago

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If I have a Pentagon shape and it's 33 centimeters long, what would be my Perimeter?

Oksana_A [137]

The answer is 165. If you add 33 five times you get 165. Or you could do what i did and do 33 times 5.

4 0

3 years ago

Please help me branniest

maxonik [38]

The answer is option A

5 0

3 years ago