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Mice21 [21]
3 years ago
13

80% of what number is 15

Mathematics
1 answer:
joja [24]3 years ago
4 0
X time 0.8 (or 80 percent)= 15
so 15/0.8=X
18.75
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If you can buy 1⁄3 of a box of chocolates for 6 dollars, how much can you purchase for 4 dollars? Write your answer as a fractio
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Given that 1/3 of a box is 6 dollars, we can say that per dollar is 1/18 of a box. If you have 4 dollars, this would mean that you can buy 4/18 of a box to 2/9 of a box. Hope this answers your question. Have a great day ahead!
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Item 56
masha68 [24]

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a 25 questions, 4 points   b 19 questions

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3 years ago
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vampirchik [111]
◆ Define the variables:

Let the calorie content of Candy A = a
and the calorie content of Candy B = b

◆ Form the equations:

One bar of candy A and two bars of candy B have 774 calories. Thus:

a + 2b = 774

Two bars of candy A and one bar of candy B contains 786 calories

2a + b = 786

◆ Solve the equations:

From first equation,
a + 2b = 774
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Put a in second equation
2×(774-2b) + b = 786
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◆ Find caloric content:

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5 0
3 years ago
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