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SVEN [57.7K]
3 years ago
9

The ratio of boys to girls in Ms.cunninghams class is 2 to 3. There are 18 girls in the class what is the total number in ms.cun

ninghams class?
Mathematics
2 answers:
Alenkinab [10]3 years ago
6 0

Answer:the answer is 12

Step-by-step explanation: i just set the ratio and solved for X

NARA [144]3 years ago
5 0

Answer:

30 students

Step-by-step explanation:

18/3 = 6

6 x 2 = 12 boys

12 boys + 18 girls = 30 students

- Hope this helps! Please let me know if you would like a further explanation.

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Which equation shows how to use equivalent fractions to evaluate 4/5-2/3
Alecsey [184]
B

Equivalent fractions are made when you multiply both the top (numerator) and the bottom (denominator) of the fraction by the same number. The only choice that is correct here is B.
8 0
3 years ago
Which equation demonstrates that use of a simple interest formula , l=PRT , to compute the investment earned on $70 at 3% For 12
Alenkinab [10]

Answer:

I = (70) x (0.03) x (12)

Step-by-step explanation:

The general formula of simple interest formula is:  I = PRT where I = simple interest, P = principal amount, R = interest rate, T = time (in years).  Given that the initial investment is $70, the interest rate is 3% (or 0.03 as a decimal) and the time is 12 years, you can form the following:  

I = (70) x (0.03) x (12)

8 0
3 years ago
4z - 8 = 20<br> Step by step
AysviL [449]

Answer:

z = 7

Step-by-step explanation:

4z - 8 = 20

Add 8 to each side

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Divide each side by 4

4z/4 = 28/4

z = 7

5 0
3 years ago
For which values of P and Q does the following equation have Infinity many solutions? P×+57=-75x+Q​
Semenov [28]

earrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :  

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In this type of equations, having more than one variable (unknown), you have to specify for which variable you want the equation solved.

Unless there is none then in that case there very well may be infinite solutions

7 0
3 years ago
Select the correct answer.<br> Which statement describes the situation shown in the graph?
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Answer:

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Step-by-step explanation:

7 0
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