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3 years ago

Simplify 2x + x + x + 2y x 3

Mathematics

2 answers:

goldfiish [28.3K]3 years ago

4 0

Answer:

4x+6y

Step-by-step explanation:

Simplify the expression. 4x+6y

neonofarm [45]3 years ago

4 0

Answer:

4x+6y

Step-by-step explanation:

I hope you understand it now. The multiplication is only for the 2y. 2x+x+x=4x

2y × 3= 6y

So it will be 4x+6y.

It's easy isn't it?

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bezimeni [28]

we know that

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by proportion

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2) Juan needs 3 hours to eat 32 cookies

Find how cookies eats Juan in one minute

by proportion

$\frac{32}{180} \frac{cookies}{minutes}= \frac{x}{1} \frac{cookie}{minutes} \\\\x=32/180 \\x=0.18\ cookies$

3) Find how long will it take them to eat 40 cookies together

we know that

Maylin and Juan eats in one minute together ---------> (0.53+0.18)=0.71 cookies

by proportion

$\frac{0.71}{1} \frac{cookies}{minutes}= \frac{40}{x} \frac{cookie}{minutes} \\\\0.71*x=40\\x=56.34 \ minutes$

therefore

the answer is

$56.34\ minutes$

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therfore:
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