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A ratio of laptops to tabelets in the stock room of a store is 13:17. If there are a total of 90 laptops and tabelets in the stock room, how many laptops are in the stock room?

Respuesta :

Hello, the answer to this problem is 1170/17, 68.823529, or ≈69 laptops.

To solve this, I will tell an easy thing. Ratios are the same as fractions. So, you can layout an equation like this: 13/17 = x/90. You are trying to find x, the amount of laptops. You can do a thing called cross multiply. For example, a/b = c/d. Cross multiply: a > d, b > c. In this case, cross multiplying would get you 17x = 1170.

x = 1170/17 or 68.823529

So, the answer is 1170/17, 68.823529, or ≈69 laptops.

ItzNatalieWyd0
Well, since there are 90 total laptops. I’m looking at the ratio, seeing that is you add the two numbers, you get 30. Meaning if you multiplied both numbers by 3, they would end up adding to 90. So, 13 x 3 is 39. 39 laptops are in the stock room.

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