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ozzi
3 years ago
11

Maggie answered 20 out of 25 questions correctly on a math test. What percent of the questions did she answer correctly?

Mathematics
2 answers:
andrew11 [14]3 years ago
7 0

Answer:

80%

Step-by-step explanation:

20/25 = 80%

Maurinko [17]3 years ago
4 0

Answer:

80% (B)

Step-by-step explanation:

To calculate the percentile test score, all you need to do is divide the earned points by the total points possible. In other words, you're simply finding the percentage of good answers:

1)percentage score = #correct / #total

2)As #correct + #wrong = #total, we can write the equation also as:

percentage score = (#total - #wrong) / #total

3)Then, all you need to do is convert the percentage score into a letter grade.

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How many 5 card hands contain exactly 2 queens
iris [78.8K]

There are 4 queens in the deck, hence (4 choose 2) = 4!/(2! (4-2)!) = 6 ways of getting 2 queens.

The other 3 cards in the deck can be any of the remaining 48 non-queens; there are (48 choose 3) = 48!/(3! (48-3)!) = 17,296 ways of getting these.

In total, there are (4 choose 2)*(48 choose 3) = 103,776 total possible hands.

5 0
3 years ago
How do you model 604 divided 4 and 796 divided 6 and 449 divided 5
cupoosta [38]
604 divided by 4 is 151. 796 divided by 6 is 132.6666666... 449 divided by 5 is 89.8
5 0
3 years ago
Tim’s savings account pays a simple annual interest rate of 3.5%. Suppose he deposits $5,500 in the account and makes no additio
dimaraw [331]

$6462.5

Simple Interest = (Principal × Rate × Time) / 100

SI = (P×R×T) / 100

P = 5500

R = 3.5

T = 5

[substitute the values into the formula]

SI = (5500 × 3.5 × 5) / 100

SI = 96250 / 100

SI = 962.5

Total = Principal + Simple Interest

T = P + SI

T = 5500 + 962.5

T = 6462.5

The total value of the account after 5 years will be $6462.5

6 0
3 years ago
If a ball rolled 1 mile in 1 second what is the speed?​
Vedmedyk [2.9K]

Answer:

the speed of ball = 1 mile per second

<h3> or</h3>

1 mile / sec

Step-by-step explanation:

cuz speed = distance ÷ time

so speed of ball = 1 mile ÷ 1 sec = 1 mile / sec

4 0
3 years ago
What are these numbers in order from greatest to least
DerKrebs [107]
Answer : Square root of 21 , -4 2/3, -30/7 , -31/6 .

Explanation :

-4 2/3 = -10/3 = -3.3333
Square root of 21 = 4.58258
-31/6 = -5.1666
-30/7 = 4.2857

And arrange them from greatest to least and there we have the answer.

Hope this helps you understand !!!!
4 0
3 years ago
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