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Alenkasestr [34]
2 years ago
7

HELP NOWhhhhhhhhhhhhhhhhhhhhhhh

Mathematics
2 answers:
DerKrebs [107]2 years ago
8 0

Answer:

r = 1/5

Step-by-step explanation:

Substitute x=15 and y=3 into the equation given.

Transpose so that r = 3/15

Simply 3/15

r = 1/5

marshall27 [118]2 years ago
3 0

Answer:

4.4/22 = .2

r=.2

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Twice the difference of a number c and forty.​
dybincka [34]

Answer:

Equation ---->    2(c - 40)

c = -40

Step-by-step explanation:

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Convert 5 2/5 into an improper fraction ​
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Step-by-step explanation:

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2 years ago
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Jobisdone [24]

Answer:

16 is the number of quarters and 14 is the number of dimes

Step-by-step explanation:

we know that

1\ dime=\$0.10

1\ quarter=\$0.25

Let

x-----> the number of dimes

y------> the number of quarters

we know that

0.10x+0.25y=5.40 -----> equation A

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y=30-x -----> equation B

Substitute equation B in equation A

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