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2 years ago

Jogging burns 21 calories in 10 minutes determine how many calories are burned per hour?

Mathematics

2 answers:

ioda2 years ago

7 0

Answer:

126 burned calories per hour

There are 60 minutes in 1 hour, so ir you multyply 21 x 6 your answer will be 126.

mrs_skeptik [129]2 years ago

3 0

Answer:

126

Step-by-step explanation:

there are 60 minutes in an hour so divide 60 by 10 to get 6 and multiply by 21 to get 126

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A trader saved $200.00 for 3 years at 12% simple interest per annum. What will be the total amount in the trader's account at th

rewona [7]

Answer:

i).272

ii. (2x-1) (3y+2)

b). 14,400 seconds

Step-by-step explanation:

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4 0

2 years ago

What is the solution of the following system of equations?<br> 2x + y = -7<br> -3x - 2y = 10

pentagon [3]

Answer:

the solution is (-4, -3)

Step-by-step explanation:

Multiply the first equation by 2. This produces 4x + 2y = -14.

Now combine this result with the second equation:

4x + 2y = -14

-3x - 2y = 10

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

x = -4

Subbing -4 for x in the first equation yields 2x - 4 = -7, or 2x = -3.

Then x = -3/2, and the solution is (-4, -3)

8 0

2 years ago

How many times smaller is 2 × 10^-10 than 4 × 10^-5

natta225 [31]

Answer:

200,000

Step-by-step explanation:

To find how many times smaller is smaller number than greater number, divide greater number by smaller number.

Greater number $=4\times 10^{-5}$

Smaller number $=2\times 10^{-10}$

Then

$\dfrac{\text{Greater number}}{\text{Smaller number}}\\ \\=\dfrac{4\times 10^{-5}}{2\times 10^{-10}}\\ \\=\dfrac{4}{2}\times \dfrac{10^{-5}}{10^{-10}}\\ \\=2\times \dfrac{1}{10^{-5}}\\ \\=2\times 10^5\\ \\=2\times 100,000\\ \\=200,000$

7 0

3 years ago

-8y2 - 10y = 0 solve polynomial

iragen [17]

Answer: y = 0, 5/4

hope this helps

4 0

3 years ago

Help what’s the answer

Tom [10]

The answer is 474 i believe

7 0

3 years ago