4
B.
14
C.
8
D.
12
The rate of 4 centimeters per second is equal to 144 meters per hour.
A conversion factor is a ratio that expresses how many of one unit are equal to another unit. To convert a smaller unit to a larger unit (eg to ), divide it by the number of smaller units which are needed to make larger unit. To convert from a larger unit to a smaller one, multiply. To convert from a smaller unit to a larger one, divide.
For the given situation,
4 centimeters per second is equal to how many meters per hour.
1 centimeter =
⇒
⇒
1 second =
Thus 4 centimeters per second = ÷
⇒ ×
⇒
Hence we can conclude that the rate of 4 centimeters per second is equal to 144 meters per hour.
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each person gets 1 brownie with 2 left over.
(dividing with remainders)
each person gets 1.4 brownies
(dividing with decimals)
Let x be the blank number
x 1/2= 422/2
Cross multiply
x(1)*(2) = 422*2
2x = 844
Divide both sides by 2
2x/2 = 844/2
x = 422
I hope that's help !