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Snezhnost [94]
2 years ago
10

30 points!!!! a class of 30 students the Ratio of the numbers of boys to girls 7:8

Mathematics
1 answer:
AleksAgata [21]2 years ago
8 0

Answer:

16 girls in the class

14 boys in the class

Step-by-step explanation:

Because of the ratio of 7:8, I added 7+8.

7+8= 15

30 (the number of students in the class) divided by 15 (the sum of the ratio)

30/15= 2

I then multiplied 8 from the "girls" part of the ratio by 2 (the quotient of 30/15) and got 16. Then I subtracted 16 from 30 and got 14, which s the number of boys in the class.

Hope this helps!

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Q8: These Triangles are similar. What is the value of X?
Umnica [9.8K]

Answer:

The answer to your question is x = 15

Step-by-step explanation:

Use proportions to solve this problem

                              \frac{x}{20} = \frac{12}{16}

Solve for "x"

                                          x = \frac{12(20)}{16}

Simplification

                                          x = \frac{240}{16}

Result

                                         x = 15                                                  

3 0
3 years ago
What is the answer to 2/3÷2/9?
dybincka [34]
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--------------
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6 0
2 years ago
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GarryVolchara [31]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
in these triangles, side AB is congruent to side DF, and side BC is congruent to side FG. Determine the values of x and y
vlada-n [284]
I added a screenshot with the complete question

Answer:
x = 3
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Explanation:
1- getting the value of x:
We are given that:
side AB is congruent to side DF. This means that:
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3(2x+10) = 12x + 12
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x = 18/6
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2- getting the value of y:
We are given that:
side BC is congruent to side FG. This means that:
BC = FG
2y + 12 = 2(2y-3)
2y + 12 = 4y - 6
4y - 2y = 12 + 6
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Hope this helps :)

5 0
3 years ago
Help with the answer please
Studentka2010 [4]

Answer:

A is the answer

Step-by-step explanation:

I hope it helps sorry kung mali

5 0
2 years ago
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