Answer:
Haeather ran at a speed of 5 miles per hour.
Step-by-step explanation:
Given that last week at the park Haeather ran 4 miles in 48 minutes, to determine what was Haeather rate of speed in miles per hour the following mathematical calculation must be performed:
48/4 = 12
Thus, Haeather ran 1 mile every 12 minutes.
60/12 = 5
1 x 5 = 5
Therefore, Haeather ran at a speed of 5 miles per hour.
Edward has 12 coins of the quarter and 8 coins of nickel with him
Total number of coins = 20
The total amount of money = $3.40
Let x represent the number of quarters and y represent the number of nickels
Formulating the equations we get:
x + y = 20-------(1)
0.25x + 0.05y = 3.40
Simplifying by removing the decimals and solving
25x + 5y = 340------(2)
Multiplying equation (1) by 5 and subtracting with equation (2) we get the following:
5x + 5y = 100
25x + 5y = 340
= 20x = 240
x = 12
So, y = 8
So, the number of quarters is 12 and the number of nickels is 8
Learn more about linear equations:
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960 x 5 = 4,800
960/24 = 40
40 x 6 = 240
4,800 + 240 = 5,040
The light bulb consumes a total of 5,040 watts in 5 days and 6 hours.
Answer:
Step-by-step explanation:
0.2205x^2v
Have x = the number of hours rented
so in order to find when they would be the same, set both equations equal to each other
27.50x=23.25x+17
first subtract the smaller (x) amount from the larger (x) amount
27.5x-23.25x=4.25x
4.25x=17
divide both sides by 4.25
x=4
after 4 hours would the rentals cost from both shops be the same
