350 is 70% of what number?
A) 500
B) 420
C) 245
D) 280
What percent of 64 is 24?
A) 267%
B) 62.5%
C) 40%
D) 37.5%
What percent of $6.50 is $2.60?
A) 25%
B) 40%
C) 90%
D) 250%
20% of 140 is what number?
A) 280
B) 120
C) 28
D) 12
HELP
What part of my response to your previous post did you not get?
https://www.jiskha.com/questions/1781724/350-is-70-of-what-number-A-500-B-420-C-245-D-280-What-percent-of-64-is-24
Why are you switching names?
Just stating "wait what????????????????" doesn't help.
who are you talking about
are you talking to me?
Chica, he explained how to do it on your last post that had the name Chloe instead of Lynn.
To find the missing number or percentage in each of these questions, you can use the following proportion formula:
(known value / total value) = (unknown value / 100)
Let's go through each question and solve them using this formula:
1) 350 is 70% of what number?
We can set up the proportion as: 350 / x = 70 / 100.
To solve for x, we can cross multiply and simplify:
350 * 100 = 70 * x
35,000 = 70x
x = 35,000 / 70
x = 500
Therefore, 350 is 70% of 500, so the answer is A) 500.
2) What percent of 64 is 24?
We can set up the proportion as: 24 / 64 = x / 100.
To solve for x, we can cross multiply and simplify:
24 * 100 = 64 * x
2400 = 64x
x = 2400 / 64
x ≈ 37.5
Therefore, 24 is approximately 37.5% of 64, so the answer is D) 37.5%.
3) What percent of $6.50 is $2.60?
We can set up the proportion as: 2.60 / 6.50 = x / 100.
To solve for x, we can cross multiply and simplify:
2.60 * 100 = 6.50 * x
260 = 6.50x
x = 260 / 6.50
x = 40
Therefore, $2.60 is 40% of $6.50, so the answer is B) 40%.
4) 20% of 140 is what number?
We can set up the proportion as: x / 140 = 20 / 100.
To solve for x, we can cross multiply and simplify:
x * 100 = 140 * 20
x * 100 = 2800
x = 2800 / 100
x = 28
Therefore, 20% of 140 is 28, so the answer is C) 28.
I hope this explanation helps! Let me know if you have any further questions.