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Olenka [21]
3 years ago
7

What is the circumference of a circle whose radius is 1.3 cm? Find the circumference using the formula C=2πr

Mathematics
1 answer:
bearhunter [10]3 years ago
4 0

Answer:

C≈8.17cm

Step-by-step explanation:

C=2πr=2·π·1.3≈8.16814cm

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About 4/10 of the population has blood type O+. What percent of the population has blood type O+?
fenix001 [56]

If 4/10 of the population have blood type O+, that means 40% of the population have that blood type. To change a fraction to percent, the easiest way is to make the denominator 100. To do this, multiply the whole fraction by 1 (1/1, 2/2, etc). In this case, multiply by 10/10. 4/10 * 10/10 is equal to 40/100. Then, if you have a denominator of 100, the numerator is the percent. Therefore, 40/100 is 40%.

4 0
3 years ago
Read 2 more answers
what is a number of 3 digits and multiple of 5 but less than 600 and can be formed from 1,3,5,7 and 9?
Murljashka [212]
Any multipule of 5 ends with either a 0 or a 5

so we see that ther are no 0's in the list so it must end with 5

so the other 2 digits can be any number
wait, less than 600
so the first digit can be 1 or 3


some possible numbers are

135
175
195
315
375
395

those are the possible numbers
8 0
3 years ago
The cost of a bagel and a cup of coffee is $2.35. The cost of 2 bagels and a cup of coffee is $4.20. What is the cost of one cup
Gnesinka [82]

Hey!

--------------------------------------------

Solution and Answer:

4.20 - 2.35 - $1.85 per bagel.

1.85 x 2 = $3.70 for 2 bagels.

4.20 - 3.70 = $0.50 per coffee.

--------------------------------------------

Hope This Helped ;)

7 0
2 years ago
Eurostar is a high-speed railway service connecting
Setler79 [48]

Answer:

649 trains

Step-by-step explanation:

If there are 30 seats per carriage, and there is 18 carriages per train.

You multiple 30 and 18 to get how many seats there are in a train.

30*18 is 540 seats.

To figure out how many trains would be needed to seat 350,000 passenger, you have to divide 350,000 with 540 to get how many trains would be needed.

350,000/540 is 648.1

Since the answer is 648.1 and you can't chop a train into 10 pieces, you would need 649 trains to seat 350, 000 passengers.

8 0
2 years ago
A high school principal is starting an in school peer to peer tutoring program at a school. In order to measure?the effectivenes
Yuliya22 [10]

Answer:

experiment

Step-by-step explanation:

bc shes experimenting on which one is more effective

5 0
3 years ago
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