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nasty-shy [4]
3 years ago
8

As student received a 75% on an exam. If there were 20 questions on the exam which ratio would show the number of questions answ

ered correctly
Mathematics
2 answers:
sergejj [24]3 years ago
7 0
75% times 20=15 so he got 15 correct 
Luda [366]3 years ago
7 0
The answer is 15:20 i believe
You might be interested in
How does dividing mixed number compare with dividing fractions?
Orlov [11]
Dividing mixed numbers is when you take a mixed number divided by a mixed number and make then fractions. Here's an example:
(Example)~5 1/5 divided by 3 1/3
5x5=25+1=26. 26/5
3x3=9+1=10/3
26/5 divided by 10/3= 26/5 multiplied by 3/10= 78/50
Dividing Fractions is when you turn 2 fractions and make them into a multiplication problem. Here's an example:
(Example)~ 2/3 divided by 4/8
2/3 multiplied by 8/4
2/3 x 8/4= 16/12~ Which turns into 1 4/12
5 0
2 years ago
Can someone help me? I figured out part B however, I am struggling with part A and I would be so happy if any of you helped me.
UkoKoshka [18]
<h3>Answer:  262,785</h3>

Note: you may need to delete the comma

============================================================

Explanation:

The info "5 months" is never used to compute the mean. We could easily replace it with "6 months" or "7 months" or any stretch of time, and still get the same answer. So we'll ignore this value.

What we'll do is add up the 21 items given to us, and then divide by 21.

Because there are so many values, and it's easy to get lost, I'm going to add up across the rows

  • Row One: 256,229+253,657+218,747+246,163+235,626+288,694 = 1,499,116
  • Row Two: 316,265+196,721+319,620+285,077+215,152+253,291 = 1,586,126
  • Row Three: 315,011+199,901+265,443+291,806+303,556+215,359 = 159,1076
  • Row Four: 258,554+293,658+289,935 = 842,147

Those subtotals then add up to this

1,499,116+1,586,126+1,591,076+842,147 = 5,518,465

This is the same as adding up all 21 values.

Finally, we divide that sum over 21 as there are 21 values in this list

(5,518,465)/21 = 262,784.047619048

That value then rounds up to 262,785

If your teacher just wanted things to the nearest whole number (without rounding up), then the answer would be 262,784

Side note: using a spreadsheet program would probably be the most efficient/fastest method for this type of problem.

3 0
2 years ago
135 is what percent of 150?
kolbaska11 [484]

Answer:

90%

Step-by-step explanation:

Is means equals and of means multiply

135 = P * 150

Divide each side by 150

135/150 = 150P/150

.9 =P

Change this to percent form by multiplying by 100%

.9*100%

90%

3 0
3 years ago
Solve for y.<br> 15y - -9y + -10y = 14<br> y =<br> Submit
Tems11 [23]

Answer:

I think y=1

Step-by-step explanation:

15y+9y= 24y

24y-10y=14y

divide 14y by 14 and get just y and divide 14 by 14 to get one

y=1

8 0
3 years ago
A wall in Marcus's bedroom is 8 2/5 feet high and 16 2/3 feet long If he paints 1/2 of the wall blue, how many square feet will
Alja [10]
We can simplify across between the 5 and the 50 and also between the 42 and the 3.
8 0
3 years ago
Read 2 more answers
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