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bekas [8.4K]
2 years ago
11

20 is 40% of what number

Mathematics
2 answers:
zaharov [31]2 years ago
7 0

Answer:

50

Step-by-step explanation:

tensa zangetsu [6.8K]2 years ago
5 0
Is means equal

of means multiplication

so

20 = 40% x a

40% = 40/100 = 4/10 = 2/5

So

20 = 2/5 x a

Multiply both sides by 5/2

20 x 5/2 = a

10 x 5 = a

a =50

So your final answer is \boxed{\bf{50}}
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Lelu [443]
Hey. Let me help you on this one.

In this problem, we have a constant rate of baker decorating cupcakes, and it gives us both values - cupcakes, and minutes.

In order for us to solve this question, we will need to simplify this ratio in order to make denominator, which is going to be 303030 minutes, equal to one. This can be done by property of division.

I will also be attaching an image that might help you with your studies. I recommend looking over it if you have trouble simplifying ratios. 

Alright, let's set up a ratio for this problem. It should be cupcakes over minutes, since this is the rate of change and our main focus here is the time. We are also doing this because amount of minutes is less than the amount of cupcakes, meaning that simplification will be much easier and actually make more sense.

\frac{424242}{303030}

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