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Neporo4naja [7]
3 years ago
9

The ratio of blue to yellow is 4:5 and there are 15 yellow how many blue is there?

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
7 0

Answer: 12 blue marbles

Step-by-step explanation: Set up a proportion.

4/5 = x/15

Solve for x, the number of blue marbles. Cross multiply. You will get 60 = 5x

Divide by 5 on each side.

x = 12

There are 12 blue marbles.

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Answer:

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Step-by-step explanation:

Consider the complete question is :

"A sporting goods store manager was selling a ski set for a certain price. The manager offered the markdowns​ shown, making the​ one-day sale price of the ski set ​$325. Find the original selling price of the ski set. It was marked down 10% and 30%"

Suppose x be the original selling price ( in dollars ),

After marking down 10%,

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Again after marking down 30%,

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Therefore, the original selling price would be $ 515.87.

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Step-by-step explanation:

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