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3 years ago

PLEASE HELP ME WITH THIS!!

Mathematics

1 answer:

adoni [48]3 years ago

3 0

answer:

a. 4 months

step-by-step explanation:

set up an expression for each and put them equal to each other
this is the way you can use to solve these kinds of problems
break down the question into parts

m stands for months

world gym = 100 + 50m

flex gym = 200 + 25m

now put them equal to each other to know how many months it will take to pay the same amount to join

100 + 50m = 200 + 25m

50m = 100 + 25m

25m = 100

m = 4

this means it will take 4 months to pay the same amount to join

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Answer:

The result in standard form is:

$\left(-5t+4t^2-t\right)-\left(8t^2+t\right)=-4t^2-7t$

Step-by-step explanation:

Given the polynomials

-5t+ 4t² – t

8t² + t

subtracting 8t² + t from -5t+ 4t² – t.

$\left(-5t+\:4t^2\:-\:t\right)\:-\:\left(8t^2\:+\:t\right)$

Remove parenthese: (-a) = -a

i.e. - (8t² + t) = 8t² - t

so the expression becomes

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grouping the like terms

$=4t^2-8t^2-5t-t-t$

Add similar elements: 4t² - 8t² = -4t²

$=-4t^2-5t-t-t$

Add similar elements: -5t - t - t = -7t

$=-4t^2-7t$

Therefore, the result in standard form is:

$\left(-5t+4t^2-t\right)-\left(8t^2+t\right)=-4t^2-7t$

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