2 years ago

The diagram shows a circle with centre

Mathematics

1 answer:

professor190 [17]2 years ago

4 0

Answer:

This is my notes

Step-by-step explanation:

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Sebastian swam laps every day in the community swimming pool. He swam 45 minutes each day, 5 days each week, for 12 weeks. In th

lord [1]

Answer:

$\text{Average rate}=\frac{\text{40 laps}}{\text{ hour}}$

Step-by-step explanation:

Please consider the complete question.

Sebastian swan laps every day in the community swimming pool. He swam 45 minutes each day, 5 days each week, for 12 weeks. In that time, he swam 1800 laps. What was his average rate in laps per hour?

Let us convert time taken into hours as:

$\text{Days}=5\times 12=60$

$\text{Minutes}=60\times 45$

1 hour = 60 minutes. To convert minutes into hours, we will divide total minutes by 60.

$\text{Hours}=\frac{60\times 45}{60}=45$

Now, we will divide 1800 by 45 to find average rate in laps per hour as:

$\text{Average rate}=\frac{\text{1800 laps}}{\text{45 hours}}$

$\text{Average rate}=\frac{\text{40 laps}}{\text{ hour}}$

Therefore, Sebastian's average rate is 40 laps per hour.

6 0

3 years ago

There are 120 planes on an airfield. If 75% of the planes take off, how many planes took off?

Soloha48 [4]

Answer:

You have to do 120 divided by 0.75 use a calculator

Step-by-step explanation:

7 0

3 years ago

It takes a 15-year-old tree to produce 700 grocery bags. How many 15-year-old trees would it take to produce 17,500 grocery bags

vfiekz [6]

17,500 / 700 = 25 15 year old trees you will need

Hope this helped

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3 years ago

Read 2 more answers

Which equation describes the same line asy- 3 =-1(x+ 5)?

aliya0001 [1]

The answer would be A

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3 years ago

Fiona deposits $4,000 at the end of each year in an account earning 2.15% interest, compounded annually. What is the future valu

7nadin3 [17]

The formula of the future value of annuity ordinary
Fv=pmt [(1+r)^(n)-1)÷r]
Fv future value
Pmt payment per year 4000
R interest rate 0.0215
N time 5 years

Fv=4,000×(((1+0.0215)^(5)−1)÷(0.0215))
fv=20,878.69

7 0

3 years ago