2 years ago

Simplify −45(30x−40)+(42x+4) . Write your answer in factored form.

1 answer:

5 0

solution

-4(327x-451)

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dybincka [34]

D. {x | x E R} because its all real numbers

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ser-zykov [4K]

Answer:

Step-by-step explanation:

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OlgaM077 [116]

Answer:

The length of Mai's bike ride was 2.1 times the length of Noah's ride.

Step-by-step explanation:

Mai biked 5 1/4 miles today

So he biked, in miles:

$5 + \frac{1}{4} = \frac{5*4 + 1}{4} = \frac{20+1}{4} = \frac{21}{4}$

Noah biked 2 1/2 miles.

So, in miles, he biked:

$2 + \frac{1}{2} = \frac{2*2 + 1}{2} = \frac{4+1}{2} = \frac{5}{2}$

How many times the length of Noah’s bike ride was Mai’s bike ride?

We divide the Mai distance by Noah's distance. In a division of fractions, we multiply the numerator by the inverse of the denominator. So

$\frac{\frac{21}{4}}{\frac{5}{2}} = \frac{21}{4} \times {2}{5} = \frac{21*1}{2*5} = \frac{21}{10} = 2.1$

The length of Mai's bike ride was 2.1 times the length of Noah's ride.

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3 years ago

Lapatulllka [165]

It has infinitely many solutions. The 4x's cancel themselves out and you are left with -5=-5, which is a true statement.

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4 years ago

grigory [225]

B..............................

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3 years ago