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4 years ago

15

arly is 3 times her brother's age. The sum of their ages is no more than 24 years. Enter an inequality that can be used to repre

sent this situation in the box, where x represents Carly's brother's age.

1 answer:

dexar [7]4 years ago

4 0

3x+x≤24 hope this helps

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Step-by-step explanation:

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svet-max [94.6K]

First car is x
second car is y
25x+30y=1550
x+y=55
Multiply the second equation by -25 for elimination method to cancel out x
-25x-25y=-1375
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y=35
Plug this value into the second equation
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Final answers:
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Element X decays radioactively with a half life of 6 minutes. If there are 790 grams of Element X, how long, to the nearest tent

frosja888 [35]

Answer:

It takes 27 minutes for the element to decay to 35 grams

Step-by-step explanation:

Given:

Initial amount = 790 grams

Final amount = 35 grams

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To find:

Time taken for the element to reduce into 35 grams = ?

Solutions

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Answer:

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