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Answer:
Mandy will take 67.5 mins to complete the 15 km race.
Step-by-step explanation:
Given:
Mandy runs 4 km in 18 min
She plans to run in a 15 km race.
We need to find how much time required to run 15 km.
4 km =18 min
15 km = time required for 15 km race
By Using Unitary method we get,
Time required for 15 km =
Hence time required by Mandy to complete 15 km race is 67.5 mins.
Answer: y = 15, x = 10
<u>Step-by-step explanation:</u>
NOTE: "varies directly" is of the form where k is the constant of proportionality.
First, input the given x and y-values to find k
Next, input the given value and k = 3 to solve for the missing variable.
Answer:
44 units squared.
Step-by-step explanation:
The formula for area of a trapezoid is:
a = missing area
b1 = short base (5)
b2 = long base (17)
h = height (4)
(5 + 17) ÷ 2 = 11
11 × 4 = 44
area = 44