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serg [7]
3 years ago
11

Evaluate a - b + c for a = 4 1/5,b =2 7/20, and c= 3 1/4

Mathematics
1 answer:
gavmur [86]3 years ago
8 0

Answer:

5 1/4

Step-by-step explanation:

4 1/5 - 2 7/20 + 3 1/4

Common denominator = 20.

4 4/20 - 2 7/20 + 3 5/20

7 12/20 - 2 7/20 = 5 5/20 = 5 1/4

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The price of a mountain bike increased by 20% in the past year the value is $150 what was the value of the mountain bike last ye
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I hope I am reading the problem right: The price of a mountain bike increased by 20% in the past year. The value is $150. What was the value of the mountain bike last year?

Let's simplify this. One year, there was this radical mountain bike that used to have an unsaid price, <em>x. </em>That year, that price of x increased by 20% more than it was before, or <em>120% times the original value</em>. Because of that, it's now $150.

We can equation this.

1.20x = 150

x = 150/1.2

x = 125

The bike, I believe, cost $125 last year. Hope this helps!


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