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ss7ja [257]
3 years ago
8

Maggie is x years old. Her brother Demarco is 4 years older than her. Anna is 3 times as old as Demarco. Write and simplify an e

xpression that represents Anna's age. Explain.
Mathematics
1 answer:
Mazyrski [523]3 years ago
8 0
Maggie is x
Demarco is 4 + x
Anna is 3 * (4 + x)
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Step-by-step explanation:

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Answer:  <em>Multiply the original price by the decimal form of the percent and subtract that from the original price. </em>

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2 years ago
A students' choir contains 25 children and only 5 of them play the piano. If a child is selected at random, what is the probabil
solniwko [45]

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P(E^{-})  =\frac{4}{5}

Step-by-step explanation:

A students' choir contains 25 children

n(S) =25

The number of students play the piano =5

Let 'E' be the event of the child play the piano so n(E) =5

The probability of that the child play the piano

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5 0
3 years ago
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Step-by-step explanation:

Given

The length of the rectangular prism is l=12\ m

width of the rectangular prism is w=8\ m

height of the rectangular prism is h=15\ m

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7 0
3 years ago
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