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VLD [36.1K]
3 years ago
8

10x +3y =1 -10x -3y=-1

Mathematics
1 answer:
adelina 88 [10]3 years ago
4 0

There would be infinite solutions since these are the same  equation just multiplies by negative 1

add them together and you get 0=0

10x +3y =1

-10x -3y=-1

--------------------

0=0

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Bingel [31]

Answer:

<u>y=5x+7</u>

<u>or</u>

<u>f(x)=5x+7</u>

Step-by-step explanation:

Slope (m) = 5

Y-intercept (b) = 7

Using the equation y=mx+b, you can find m and b to make y=5x+7.

Steps:

(1, 12) (2, 17)                          formula: y2-y1 / x2-x1 = m

17-12= 5

 2-1 = 1

5/1=5

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<u>Answer: y=5x+7</u>

<u>or</u>

<u>f(x)=5x+7</u>

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3 years ago
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3 years ago
There are 20 balls in a bag. Ten of the balls are red, 4 are green, and the rest are yellow.
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Answer:

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<em><u>You pay $10 a day plus 50¢ a mile (Option B)</u></em>

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Add - 20 on both sides,

20 - 0.25x - 20 < 10 - 20\\\\-0.25x < -10

\mathrm{Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right)}

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Divide both sides by 0.25

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Thus you must drive more than 40 miles to make option A the cheaper plan

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Answer:

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Step-by-step explanation:

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