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2 years ago

In Year 11 at the school, the ratio of the number of pupils who study Chemistry to

Mathematics

2 answers:

8090 [49]2 years ago

8 0

Answer:

17.5

105÷3 is 35

37÷2 is 17.5

Doss [256]2 years ago

4 0

Answer:

Step-by-step explanation:

Chem : Phy = 3: 2

Since we have 105 pupils studying Chem and let's say we have x students stuyding Phy.

We have : $3:2=105:x$

$3x=210$

x=70

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3 years ago

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natka813 [3]

Answer: About 800 thousand

The more accurate value is 807,528 but this is also an approximation.

=======================================================

Work Shown:

$t = \text{number of years since the year 2000}$

$P_0 = \text{population (in millions) in the year 2000}$

$P = P_0(1.2)^t\\\\5 = P_0(1.2)^{10}\\\\5 \approx P_0*6.1917364224\\\\P_0 \approx \frac{5}{6.1917364224}\\\\P_0 \approx 0.80752791444922\\\\P_0 \approx 0.807528\\\\$

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1 year ago