The first one to solve these problems correctly will get 10 pts
What percent of one cup is one quart?
Joe deposits 15% of his weekly salary of $309 in the bank each week. How much does he deposit each week?
In the seventh grade there are 18 girls and 27 boys. What percent are girls?
2007-03-23 03:52:29 · 9 answers · asked by emily2012 2 in Science & Mathematics ➔ Mathematics
1 qt = x% • 1 cp
4 cp = x% • 1 cp
4 = 400%
15% of 309 = 0.15(309) = $46.35
18 / (18+27) = 18/45 = 2/5 = 40%
2007-03-23 04:00:07 · answer #1 · answered by Philo 7 · 0⤊ 0⤋
In the first question, you'll have to know how many cups go into a quart. There's two cups in a pint, two pints in a quart. That makes four cups in a quart. Then you'll do percentages.
To calculate percentages, you take one number over another, and you figure it out by looking at "What percentage is t of v?" so you take t, divide it by v, and multiply by one hundred. So you'll have (4 cups/1 quart) times 100 percent.
In the second question, you'll see it says, "Joe deposits x of y." The word "of" means multiplication.
So you'll multiply 309 times 15%. Fifteen percent is the same as 15/100, or .15. You can figure it out from here.
For the third question, total up the numbers of boys and girls. Go back to (t/v)*100%. V is the total, T is what you're trying to find.
2007-03-23 10:59:31 · answer #2 · answered by Brian L 7 · 0⤊ 0⤋
let the % be x%
so, x / 100= 1 \ 4
x = 20%
15 % of 309
15\ 100 *309 = $ 46.35
total no. of students = 18+27
=45
% of girls = 18 * 100 \ 45 = 45%
2007-03-23 11:07:01 · answer #3 · answered by priyadarshini u 2 · 0⤊ 0⤋
1) 1/4 * 100%
= 400%
2) 15/100 * $309
= $46.35
3) (18+27)
=18/45 * 100%
= 40%
2007-03-23 11:12:39 · answer #4 · answered by leafia_5 2 · 0⤊ 0⤋
I am not sure of the first question.
Joe deposits 309 X 0.15 = 46.35 dollars
18 out of 45 students are girls. So that is 1800/45 = 40 %
2007-03-23 11:00:38 · answer #5 · answered by Swamy 7 · 0⤊ 0⤋
400%
One cup is 250 mL, One quart is 1000mL (one litre)
1000 / 250 = 4 (400%)
$46.35
$309 * 0.15 = $46.35
40%
18 / (18 + 27) = 0.40 = 40%
2007-03-23 10:56:25 · answer #6 · answered by Joe the Engineer 3 · 0⤊ 1⤋
1. 400%
2. Joe deposits $46.35 each week
3. 40% are girls
2007-03-23 10:57:47 · answer #7 · answered by BlueSmiley 3 · 1⤊ 0⤋
25% of a cup is one quart
He deposits $46.35 each weak.
40% are girls.
2007-03-23 10:57:29 · answer #8 · answered by Anonymous · 1⤊ 1⤋
I don't understand the first question
the second answer is 40 and the third answer is $45.35
2007-03-23 10:59:45 · answer #9 · answered by Anonymous · 0⤊ 0⤋