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3 years ago

9

Use a diagram to solve: Sara ran two-fifths of the race. She needs to run 120 m more to finish the race. What is the length of t

he race?

1 answer:

KATRIN_1 [288]3 years ago

7 0

The answer would be 200 meters.

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Which expression has a value of 1/36?

Schach [20]

(1/36) = 0.0277777777778

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Answer:

Y = -1/2x+4

Step-by-step explanation:

The Y intercept is 4, so that's where the +4 comes in.

The slope is rise over run, so you count how many up you go from a whole number, in this case one, and that goes on top. Then you count how many it goes over, in this case two, and that goes on the bottom. The negative comes from which way the slope is going; down or up.

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2 years ago

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Five cupcakes and two cookies cost $19.75. Two cupcakes and four cookies cost $ 17.50.

alina1380 [7]

Answer:

Step-by-step explanation:

Let x and y represent the cost of a cupcake and cookie respectively.

Given that;

Five cupcakes and two cookies cost $19.75.

$5x+2y=19.75 ---------- 1$

Two cupcakes and four cookies cost $17.50.

$2x+4y=17.50 --------------2$

Let's solve the simultaneous equation by elimination;

Multiply equation 1 by 2;

$10x+4y=39.50-------3\\$

Subtract equation 2 from equation 3;

$10x-2x+4y-4y=39.50-8x=22$

$8x=22$

divide both sides by 8

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Since we have the value of x, let substitute into equation 1 to get y;

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therefore , the cost of cupcakes and cookies are;

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Answer:

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QveST [7]

Answer:

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Step-by-step explanation:

With the given information, use the point-slope formula $y-y_1 = m (x-x_1)$ to write the equation of the line. Substitute values for the $m$ , $x_1$ , and $y_1$ to find the answer.

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