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stira [4]
3 years ago
7

Eloise practiced piano for 25 of an hour. Sarah practiced piano for 34 of an hour.

Mathematics
1 answer:
MrMuchimi3 years ago
7 0

Answer:

34 - 25 = 9

Step-by-step explanation:

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Which expression is equivalent to -2 1/4÷ (-2/3)​
Talja [164]

Answer:

-2\dfrac{1}{4}\div\left(-\dfrac{2}{3}\right)=\dfrac{27}{8}=3\dfrac{3}{8}}

Step-by-step explanation:

-2\dfrac{1}{4}\div\left(-\dfrac{2}{3}\right)\qquad\text{the quotient of two negative numbers is positive}\\\\=2\dfrac{1}{4}\div\dfrac{2}{3}\qquad\text{convert the mixed number to the improper fraction}\\\\=\dfrac{2\cdot4+1}{4}\div\dfrac{2}{3}=\dfrac{9}{4}\div\dfrac{2}{3}\\\\\text{dividing by a fraction is the same as multiplying by its reciprocal.}\\\\=\dfrac{9}{4}\cdot\dfrac{3}{2}=\dfrac{9\cdot3}{4\cdot2}=\dfrac{27}{8}\qquad\text{convert to the mixed number}\\\\=3\dfrac{3}{8}

3 0
3 years ago
a sporting goods manufacturer requires 2/5yd of fabrick to a pair of soccer shorts how many shorts can be made from 4yd of fabri
yanalaym [24]

Answer:

10 pair of soccer shorts.

Step-by-step explanation:

Let the unknown be x.

Translating the word problem into an algebraic equation, we have;

2/5 yard = 1 pair of short

4 yard = x pair of short

Cross-multiplying, we have;

2x/5 = 4

Multiplying both sides by 5, we have;

2x = 20

x = 20/2

x = 10 pair of soccer shorts.

7 0
3 years ago
Which of the following expressions could be used to represent "the difference between -17 and -8"?
musickatia [10]
The  last bc the + and - are different that means it will be subtracted.
7 0
3 years ago
PLEASE HELP THIS PRETTY HARD!
DaniilM [7]

Answer:

C

Step-by-step explanation:

so m is less than o and m is less than n so that means m is the shortest angle (look at the picture) as you see NO is the longest side since theres only one answer that has NO as the first choice it has to be that one.

5 0
2 years ago
Please help with this question it is 60% of my grade.
Vsevolod [243]

Answer: b

Step-by-step explanation:

you start with 0 min- equals 24

1 min- 21

2 min- 18

3 min- 15

4 min- 12

5 min- 9

and so on- you look for the table that best describes that. x represents the minutes, and y represent the amount of water left in the sink.

3 0
3 years ago
Read 2 more answers
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