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qaws [65]
3 years ago
10

Kaia calculates the she spends 75 minutes of a school day in science class. If she spends 500 minutes in school, what percent of

her school day does Kaia spend in science class
Mathematics
1 answer:
GaryK [48]3 years ago
7 0

Answer:

15%

Step-by-step explanation:

Since a percent is out of 100 we can make 75/500 to have the denominator of 100.

To do that you divide

500/5 = 100

and for the numerator

75/5 = 15

whatever you do to one side you must do to the other that's why I divided both sides by 5. The ending fraction would be 15/100 which is the same as 15%

Hope that helps and have a great day!

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Lelechka [254]
16/25 = 0.64 = 64%

Another way to do it is to multiply top and bottom by 4
16/25 = (16*4)/(25*4) = 64/100 = 64%

Either way, the answer is 64%
7 0
3 years ago
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A rectangular auditorium seats 1564 people. the number of seats in each row exceeds the number of rows by 1212. find the number
yanalaym [24]
<span>We can safely assume that 1212 is a misprint and the number of seats in a row exceeds the number of rows by 12. Let r = # of rows and s = # of seats in a row. Then, the total # of seats is T = r x s = r x ( r + 12), since s is 12 more than the # of rows. Then r x (r + 12) = 1564 or r**2 + 12*r - 1564 = 0, which is a quadratic equation. The general solution of a quadratic equation is: x = (-b +or- square-root( b**2 - 4ac))/2a In our case, a = 1, b = +12 and c = -1564, so x = (-12 +or- square-root( 12*12 - 4*1*(-1564) ) ) / 2*1 = (-12 +or- square-root( 144 + 6256 ) ) / 2 = (-12 +or- square-root( 6400 ) ) / 2 = (-12 +or- 80) / 2 = 34 or - 46 We ignore -46 since negative rows are not possible, and have: rows = 34 and seats per row = 34 + 12 = 46 as a check 34 x 46 = 1564 = total seats</span>
4 0
3 years ago
PLEASE SOMEONE DO THE QUESTION FOR ME PLS ILL GIVE BRAINLIEST!!
dybincka [34]

Answer:

28/100

55/100

40/100

50/100

Step-by-step explanation:

7 0
3 years ago
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Last week, a chocolate shop sold 7/12 pounds of white chocolate. It sold 2 1/5 times as much milk chocolate as white chocolate.
Maslowich

Answer:

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Step-by-step explanation:

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6 0
3 years ago
The average summer vacation costs $2252. If 82% of this amount is charged on credit cards, then what amount of the vacation cost
expeople1 [14]

Answer: $1846.64

Step-by-step explanation:

Given : The average summer vacation costs $2252.

If 82% of this amount is charged on credit cards, then the amount of the vacation cost is charged will be :-

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Therefore the amount of the vacation cost is charged= $1846.64

3 0
3 years ago
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