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2 years ago

14

Roberta is thinking about joining the food co-op store. If she pays $10.00 to join, she will get 10% off on all the groceries sh

e buys there. How much must she buy before her savings equal her membership fee?

2 answers:

nikdorinn [45]2 years ago

6 0

She would have to shop there 10 time to get the 100% back.

motikmotik2 years ago

3 0

$100 spent at food coop will save you $10 thus getting even with the cost to join

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3 years ago

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7(a - 10) = 13 - 2(2a + 3)
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Read 2 more answers

PLEASE HELP PLEASE PLEASE

NNADVOKAT [17]

Answer: The value of x =2 units.

Explanation:

Since we have given that

AD= CD

BE= EA

So, we get that D and E are the mid-points of AC and AB respectively.

So, by Mid- point theorem , which states that the line joining the two midpoints is parallel to third side and it is half in length of third side i.e.

$DE=\frac{1}{2}BC$

So, we put the value of DE and BC ,

$5x-3=\frac{1}{2}\times (x+12)\\\\2(5x-3)=x+12\\\\10x-6=x+12\\\\10x-x=12+6\\\\9x=18\\\\x=\frac{18}{9}=2$

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Answer

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