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Ad libitum [116K]
4 years ago
12

On the first book shelf there are 123 books. On the second shelf there are 81 books. How many books should be moved from the fir

st shelf to the second one to have the same number of books on each book shelf? How many books will be the on each shelf in this case?
Mathematics
1 answer:
artcher [175]4 years ago
3 0

Answer:

21 books need to be moved

Explanation:

123+81=204

204/2=102

So there needs to be 102 books on each shelf.

123-102=21

So 21 books need to be moved from the first shelf.

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3 years ago
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Joni’s hair is 13 inches long and grows at an average rate of ⅔ in per month. Her friend Kate’s hair is 16 inches long and grows
Gelneren [198K]
<h3>18 months will pass before the two friends have the same hair length</h3>

<em><u>Solution:</u></em>

Let "x" be the number of months

Joni’s hair is 13 inches long and grows at an average rate of ⅔ in per month

Equation : 13 + \frac{2}{3}x ------- eqn\ 1

Her friend Kate’s hair is 16 inches long and grows at an average rate of ½ in per month

Equation: 16 + \frac{1}{2}x ----- eqn\ 2

<em><u>For two friends to have the same hair length, eqn 1 must be equal to eqn 2</u></em>

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Thus 18 months will pass before the two friends have the same hair length

5 0
3 years ago
Malcolm buys a 5/6 pound of black beans and a 3/4 pound bag of pinto beans. How many pounds of beans does Malcolm buy in all?​
artcher [175]

Answer:

1 7/12

Step-by-step explanation:

5/6+3/4=10/12+9/12 = 19/12 or 1 7/12

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3 years ago
Each day of the week mrs uses 3/4 of a gallon of gas what is the amount she uses in five days?
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