Answer:
The three side lengths: 15, 30, and 34 feet
Step-by-step explanation:
Let the shortest side be a, then side b= 2a and side c=(b+19)
We are given a+b+c=79
Substituting for b and c
a + 2a + (a + 19) = 79
4a + 19 = 79
4a=79-19=60
4a=60
a=15 feet
b=2*15=30 feet
c=15+19=34 feet
Answer:
see below
Step-by-step explanation:
Let's add the amounts earned together to find his total earnings. This is 60 + 84 + 72 + 96 + 48 = $360. If he had $218 left over the skis cost 360 - 218 = $142.
Start by dividing 300 by 10, which gives you 30. That's how many miles he travels an hour. Times 30 by 4, for the distance covered over 4 hours which is 120 miles. :D
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