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3 years ago

Please help me solve this equation -4x + 15> 59

Mathematics

1 answer:

KiRa [710]3 years ago

7 0

-4x + 15 > 59
-4x > 44
x < -11 - switch the inequality when dividing or multiplying by a negative number

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Answer:

Carl has to sell at least $8$ cookies.

$c\geq 7.5$

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Carl gets $\$1.50$ by selling 1 chocolate bar.

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3 years ago

If 5x:(x-2) = 11:3 , find the value of x ?

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Answer:

x = -11/2

Step-by-step explanation:

The ratios need to stay the same

5x 11

----- = -------

x-2 3

Using cross products

5x*3 = (x-2) 11

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Subtract 11 from each side

15x-11x = -22

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