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sammy [17]
3 years ago
10

I have 30 question test and need 70% to pass how many questions can be wrong

Mathematics
1 answer:
alekssr [168]3 years ago
3 0
Total questions are 30.

70% of 30
=30(70/100)
=21

So, the questions can be wrong are 30-21.
=9 questions..

Thanks!
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The number of goldfish in the pet store is equal to 60 fishes.

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<u>Given the following data:</u>

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To calculate the number of goldfish that the pet store have:

<h3>What is ratio?</h3>

Ratio can be defined as an expression that is used to denote the proportion of two (2) or more quantities with respect to one another and the total quantities.

Mathematically, the number of goldfish in the pet store is given by this expression:

G = \frac{2}{5} \times 150\\\\G=0.4 \times 150

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Read more on ratio here: brainly.com/question/13513438

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