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3 years ago

65% of what number is 577.2?

Mathematics

1 answer:

yanalaym [24]3 years ago

5 0

Answer:

888

Step-by-step explanation:

Let 65% of x be 577.2

Therefore,

65%*x = 577.2

0.65x = 577.2

x = 577.2/0.65

x = 888

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Carl bought 19 apples of 2 different varieties to make a pie.The total cost of the apple was $5.10.Granny Smith apples cost $0.2

disa [49]

For this case we propose a system of equations:

x: Let the variable representing the quantity of Granny Smith apples

y: Let the variable representing the number of Gala apples

According to the statement we have:

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From the first equation we have to:

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replacing in the second equation:

$0.25 (19-y) + 0.30y = 5.10\\4.75-0.25y + 0.30y = 5.10\\4.75 + 0.05y = 5.10\\0.05y = 5.10-4.75\\0.05y = 0.35\\y = \frac {0.35} {0.05}\\y = 7$

So, Carl bought 7 Gala apples

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$x = 19-7 = 12$

So, Carl bought 12 Granny Smith apples

Answer:

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HACTEHA [7]

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Step-by-step explanation:

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3 years ago

65% of what number is 577.2?​

65% of what number is 577.2?