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Mathematics

1 answer:

stira [4]3 years ago

6 0

You’re correct, it’s 16. Constant proportionality mean how much Y moves. So it’s 16!

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Could I please have some workings out with the answer

rusak2 [61]

Assuming that the units of speed are also in minutes, for instance km/min or m/minute. Then you would not need to convert time into another unit. As for multiplying the bases of 10, remember that 10 = 10^1. So it would be 10^8+1 = 10^9. So the result would be 24 • 10^9 but in proper scientific notation it would be 2.4 • 10^10.

Yet, I believe you are working with the speed of light and thus you would need to convert 8 minutes into seconds which would be 8 • 60 = 480 seconds. Then do the following operation:

480 = 4.80 X 10^2

(4.80 X 10^2 seconds)(3.00 X 10^8 metres/second)

Simply multiply the whole numbers, and the bases of 10, and put in proper scientific notation.

4 0

3 years ago

What is the sum of the interior angles of the polygon shown below?

Len [333]

Answer:

360

Step-by-step explanation:

Formula

Sides -2 ×180

4-2=2×180=360

3 0

3 years ago

the correct mixture of oil to gas in a weed eater is 1/2 pint of oil to 2 1/2 gallons of gas. how many pints of oil are needed f

Stells [14]

This requires 2 pints of oil.

Using a proportion to solve this, we have:
$\frac{\frac{1}{2}}{2\frac{1}{2}}=\frac{x}{10}$

Cross multiplying, we have
1/2*10 = (2 1/2)*x
5 = (2 1/2)x

Divide both sides by 2 1/2:
5÷(2 1/2) = (2 1/2)x÷(2 1/2)
2 = x

8 0

3 years ago

Read 2 more answers

a board that is 2 5/8 feet long is cut from a larger board that is 7 1/3 feet long. How much of the board remains?

Rus_ich [418]

Answer:

$4\frac{17}{24}$ feet