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Shalnov [3]
2 years ago
6

The GCF of seven and 21 is

Mathematics
1 answer:
iris [78.8K]2 years ago
6 0

Answer: gcf is 7

Step-by-step explanation:

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−3x + y = 4,<br><br> −9x + 5y = −1<br> find x and y
katrin [286]

Answer:

9x - 3y = -12

-9x +5y = -1

2y = -13

y = -13/2

-3x - 13/2 = 8/2

-3x = 21/2

-6x = 21

x = -21/6 = -7/2

(-7/2, -13/2)

3 0
3 years ago
this formula, i represents the _____ of the loan. a. annual interest rate b. interest rate per period c. initial amount d. incid
Phantasy [73]

Answer:

b. interest rate per period

Step-by-step explanation:

We know that

Annual interest rate is APR or (r)

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so,

i is the interest rate per period

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answer is

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3 0
3 years ago
So far, Charlie has pures 456.6 Glories. He wants to burn a total of 500 calorierHow many more calories must Charlie burn?
klasskru [66]
Well if he’s burned 456.6 calories already and he needs to get to 500 then you would have to simply subtract 456.6 from 500
The equation: 500 - 456.6 = 43.4
Hope this helps!
4 0
2 years ago
If 40% of a number is 56, what was the original number?
oksian1 [2.3K]
40/100= 56/x 40x=100(56) 40x=5600 Divide both sides by 40 to get x alone. X=140
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2 years ago
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