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andrezito [222]
3 years ago
12

Leslie joins a fitness club that has a

Mathematics
1 answer:
agasfer [191]3 years ago
6 0

Answer:

4

Step-by-step explanation:

15x+20 = 40 +10x

x = 4

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3 years ago
Using Proportions to Make a Prediction
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<h2>○=> <u>Solution (1)</u> :</h2>

Ratio of people who said they like cereal bars to people who said they don't = 14:11

Number of people at a grocery shop = 500

Which means :

=\tt  \frac{14}{25} \times 500

=\tt  \frac{14 \times 500}{25}

= \tt \frac{7000}{25}

\color{plum}= \tt280 \: people

Thus, 280 people would buy cereal bars.

▪︎Therefore, out of 500 people, <em>280 people</em> would buy cereal bars.

<h2>○=> <u>Solution (2)</u> :</h2>

Ratio of cars which worked well to cars which were defective = 297:3

Number of care produced each day = 1000

Number of defective cars produced each day :

= \tt \frac{3}{200}  \times 1000

=\tt  \frac{3 \times 1000}{200}

=  \tt\frac{3000}{200}

\color{plum} = \tt15 \: defective \: cars

Thus, 15 defective cars are produced.

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5 0
3 years ago
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