13. A local car wash is open 8 hours each day.
1 answer:
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Answer:
Price of roses is proportional to the number of roses.
Step-by-step explanation:
Let the price of roses are proportional to the number of roses.
Equation representing this phenomenon will be,
P = k(R) ⇒ k =
where 'P' = price of the roses
R = Number of roses
k = Proportionality constant
If we substitute the values of P and R and we get the same value of constant 'k', then the equation will be true.
For R = 3 and P = $9
k =
k = 3
For R = 6 and R = 18
k =
k = 3
K is same in both the conditions, therefore, Price of roses are proportional to the number of roses.
Answer:
see the explanation
Step-by-step explanation:
we know that
The circumference of a circle is equal to
where
D is the diameter
In this problem we have
substitute and solve for D
we know that
The length of the row of quarters is equal to multiply the diameter of the quarter by the number of quarters in the row
so
For 4 quarters in the row, the length is equal to -->
For 6 quarters in the row, the length is equal to -->
For 12 quarters in the row, the length is equal to ->