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Serjik [45]
3 years ago
14

Which of the following can be written as a rate?

Mathematics
1 answer:
Rina8888 [55]3 years ago
3 0

Answer:

D

Step-by-step explanation:

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40% of the students in a class are girls and the number of boys is 24 find the total number of students and the number of girls​
navik [9.2K]

Answer:

Girls = 16

Total students = 40

Step-by-step explanation:

40% of the students are girls, this means 60% of the students are boys.

To find the number of girls, setup a proportion using the percentages and actual number of students in the class. I am going to make the numerator the numbers that go with the girls and the denominator will be the numbers that go with the boys.

Also let's convert the percentages to decimals by moving the decimal two places left.

40% = 0.4 and 60% = 0.6

\frac{.4}{.6} =\frac{g}{24} \\.6g=9.6\\\frac{.6g}{.6} =\frac{9.6}{.6} \\g=16

Now let's find the total number of students by adding the number of girls to the number of boys.

16 + 24 = 40

7 0
1 year ago
3 A set consisting of no element is
Andrews [41]

Answer:

The set is called a null set

Step-by-step explanation:

Because it has no members

8 0
3 years ago
Read 2 more answers
Could someone help please?!
tekilochka [14]
The answer is the last option because the graph goes no greater than 75 and it also goes no greater than zero but it does hit zero and 75
3 0
3 years ago
Which value is equivalent to the expression 2^3 + 3^4
Nana76 [90]

Answer:

89

Step-by-step explanation:

2^3=2*2*2=8

3^4=3*3*3*3=9*9=81

8+81=89

3 0
3 years ago
(4x2-25)/(2x2+3x-20)<br> Simplify the expression
mr Goodwill [35]

Answer:

\frac{-17}{16+3x}

Step-by-step explanation:

8-25

4+3x-20

-17

16+3x

3 0
3 years ago
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