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alekssr [168]
3 years ago
15

Assume running consumes 103 calories per mile. If you run 9-minute mile, what is your average output in watts, during a 1-hour r

un?
Mathematics
1 answer:
Sergeu [11.5K]3 years ago
4 0
9 minutes ⇒ 1 mile
1 hour = 60 minutes
60 minutes ⇒ 60/9 mile = 6.667 miles

1 mile ⇒ 103 cal
6.667 miles ⇒ 6.667(103) cal = 686.667 cal

1 cal ⇒ 4.184 joules
686.667 cal ⇒ 2873.0133 joules

Watts = joules/time in seconds
60 minutes = 3600 seconds
<span>W = 2873.0133/3600 ≈ 0.79805925 <em>(round as needed)</em></span>
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dybincka [34]

Answer:

x=4 and y=4

Step-by-step explanation:

From first function we have:

3x - 4y =  - 4 \\ 4y = 3x  + 4

And from the second one:

y = 2x - 4 \\ 4y = 8x - 16

Substitute them:

4y = 3x + 4 \\ 4y = 8x - 16 \\  \\ 0 =  - 5x + 20 \\ x = 4 \\ y = 4

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3 years ago
For Greta's birthday party, her parents ordered 6 pizzas. If they cut the pizzas into sixths, how many pieces will there be? Cho
saw5 [17]

Options aren't avaible

Answer:

(1 ÷ 1/6) * 6

36 pieces of pizza

Step-by-step explanation:

Given that :

Number of pizzas ordered = 6

Divisions per pizza = 1/6 ;

Hence, 1 full pizza is divided into 1 ÷ 1/6 = 1 * 6/1 = 6 pieces

6 * 1/6(1)

The total pieces of pizzas equals :

6 pieces per pizza * number of pizzas

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4 0
3 years ago
Write and equation given slope and a point. <br> M= -1 and (-2,3)
ArbitrLikvidat [17]

Step-by-step explanation:

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3 years ago
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prohojiy [21]
It would be 20
To get this answer you would add up all the answer then divide it by how many numbers there are
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3 years ago
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Slav-nsk [51]

Answer:

The first box in the girl row is 18, the second one in the boy row is 8, and the bottom one is also 18.

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