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2 years ago

The ratio of boys to girls in a class is 5 : 6. If there are 20 boys, how many girls are there?

Mathematics

2 answers:

Eduardwww [97]2 years ago

4 0

Answer:24

Step-by-step explanation:

Lilit [14]2 years ago

4 0

This symbol (:) is equivalent to a division sign. We can set up an equation; 5/6=20/x. For this specific problem, we can see that you can multiply 4 to reach 20. Then you can multiply 6 also by 4 and get 24. Generally, you should cross multiply. 5x=120; x=24. The final answer is 24 girls.

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Don has a bag that weighs 2 oz, and Jamie has a bag that weighs 1 oz. Don put some marbles in his bag each weighing 9.4 oz, and

Andrej [43]

total weight of both bags = 3 oz + 20.6m oz

Don's bag = 2 oz
Jamie's bag = 1 oz
Don's marbles = 9.4 oz * m
Jamie's marlbes = 11.2 oz * m

Total weight of Don's bag = 2 oz + 9.4m oz
Total weight of Jamie's bag = 1 oz + 11.2m oz

2 oz + 9.4m oz + 1 oz + 11.2m oz = 3 oz + 20.6m oz

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3 years ago

What is the algebra expression for 4 minus the sum of a number and 6

Westkost [7]

Answer:

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Step-by-step explanation:

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3 years ago

Scott ran 11 kilometers in nine days. One mile is approximately 1.6 kilometers. About how many miles did Scott run?

natita [175]

Scott run 6.875 miles in nine days.

Step-by-step explanation:

Given,

Distance covered by Scott = 11 kilometer

1.6 kilometer = 1 mile

We will find the unit rate in terms of kilometer;

1 kilometer = $\frac{1}{1.6}\ miles$

11 kilometers = 11*unit rate of kilometer

11 kilometers = $11*\frac{1}{1.6}$

11 kilometers = 6.875 miles

Scott run 6.875 miles in nine days.

Keywords: unit rate, multiplication

Learn more about multiplication at:

#LearnwithBrainly

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3 years ago

What is -(2×7)+(4g×9a)

kotykmax [81]

I think its 162 but i dont know so hope this helps sorry if it dont

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3 years ago

HELP FAST!!! Here are two rectangles. The length and width of one rectangle are 8 and 5. The width of the other rectangle is 5,

deff fn [24]

Answer:

5•x=? and 8•5=40, personal opinion: the left rectangle is most likely a square so if you need to solve it it's 5•5=10

Step-by-step explanation:

A(area)=l (length)•w (width)

just plug in your numbers, in this case it would be 8(length) times 5(width)

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3 years ago