Answer:the length of time he spent running is 8 minutes.
the length of time he spent swimming is 15 minutes.
Step-by-step explanation:
Let x represent the length of time he spent running.
Let y represent the length of time he spent swimming.
He exercised for a total of 23 minutes. This means that
x + y = 23
When running he burns 35 calories per minute, and when he swims he burns 30 calories per minute. He has burned 730 calories after exercising. It means that
35x + 30y = 730 - - - - - - - - - -1
Substituting x = 23 - y into equation 1, it becomes
35(23 - y) + 30y = 730
805 - 35y + 30y = 730
- 35y + 30y = 730 - 805
- 5y = - 75
y = - 75/ -5
y = 15
Substituting y = 15 into x = 23 - y, it becomes
x = 23 - 15 = 8
Answer:
Simplifying
10x + -2 = 118
Reorder the terms:
-2 + 10x = 118
Solving
-2 + 10x = 118
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '2' to each side of the equation.
-2 + 2 + 10x = 118 + 2
Combine like terms: -2 + 2 = 0
0 + 10x = 118 + 2
10x = 118 + 2
<em><u>Combine like terms: 118 + 2 = 120</u></em>
<em><u>Combine like terms: 118 + 2 = 12010x = 120</u></em>
<em><u>Combine like terms: 118 + 2 = 12010x = 120Divide each side by '10'.</u></em>
<em><u>Combine like terms: 118 + 2 = 12010x = 120Divide each side by '10'.x = 12</u></em>
<em><u>Combine like terms: 118 + 2 = 12010x = 120Divide each side by '10'.x = 12Simplifying</u></em>
<em><u>Combine like terms: 118 + 2 = 12010x = 120Divide each side by '10'.x = 12Simplifyingx = 12</u></em>
One cost of a pair of Nike's is $365.68 so to find the cost of 4 pairs, we multiply 365.68 by 4 which gets us $1462.72
And he is fat
Answer:
$115.36
Step-by-step explanation:
Given data
P=$103
r=1.9%
t= 6 years
The expression for the amount is given as
substitute
Hence the final amount is $115.36
