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malfutka [58]
3 years ago
13

When negative five is subtracted from a number the result is 10. Find the number.

Mathematics
2 answers:
Bad White [126]3 years ago
6 0

Answer:

c. 5

Step-by-step explanation:

A. -5-(-5)=0

B. 15-(-5)=20

C. 5-(-5)=10

D. -15-(-5)= -10

all u do is plug in ur choices and see if the answer equals 10. if it does then that is your answer.

Gala2k [10]3 years ago
4 0

Answer:

Option C, 5

Step-by-step explanation:

<u>Step 1:  Make an expression</u>

Negative five is subtracted from a number the result is 10

n - (-5) = 10

<u>Step 2:  Combine</u>

n - (-5) = 10

n + 5 = 10

<u>Step 2:  Subtract 5 from both sides</u>

b + 5 - 5 = 10 - 5

n = 5

Answer:  Option C, 5

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<h3>Answer:  Choice D</h3>

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====================================================

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(x_1,y_1) = (-1,-1) \text{ and } (x_2,y_2)  = (2,3)\\\\m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}\\\\m = \frac{3 - (-1)}{2 - (-1)}\\\\m = \frac{3 + 1}{2 + 1}\\\\m = \frac{4}{3}\\\\

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Parallel lines have equal slopes, but different y intercepts. We'll need to see which of the four answer choices have a slope of 4/3.

Solve the equation in choice A for y. The goal is to get it into y = mx+b form so we can determine the slope m.

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Equation A has a slope of -3/4 and not 4/3 like we want.

Therefore, this answer choice is crossed off the list.

Follow similar steps for choices B through D. I'll show the slopes of each so you can check your work.

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We have a match with equation D. Therefore, the equation 4x-3y = 15 is parallel to the given line shown in the graph.

You can use graphing tools like Desmos or GeoGebra to confirm the answer.

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