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Katyanochek1 [597]

3 years ago

6

A construction crew is lengthening a road. The crew is adding 6 miles to the road each week. The road originally measured 52 mil

es long. The crew's goal is given by 6x+52>130, where x is the number of weeks the crew works.

1 answer:

PSYCHO15rus [73]3 years ago

7 0

6x + 52 > 130

Subtract 52 from both sides:

6x > 78

Divide both sides by 6:

X > 78/6

X > 13

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(a)

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(b)

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3 years ago

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Step-by-step explanation:

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5 0

3 years ago

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soldi70 [24.7K]

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8 0

3 years ago

Read 2 more answers

wolverine [178]

Answer:

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Step-by-step explanation:

To solve this problem, two variables are necessary since we have two unknown variables: Ivy's age and Rose's age.

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and Rose's age will be $y$

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in six years Ivy will have $x+6$ years, and Rose will have $y +6$ years, so for this sentence we have the equation:

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Substituting the value of x from the first equation into the second, and solving for y(Rose):

$\frac{y}{2}+6=\frac{2}{3} (y+6)\\\frac{y+12}{2} =\frac{2}{3} (y+6)\\y+12=\frac{4}{3} (y+6)\\3(y+12)=4(y+6)\\3y+36=4y+24\\36-24=4y-3y\\12=y$

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Answer:

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