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:
2.4003638e + 46
Step-by-step explanation:
If you would like to solve x% of 50 shirts is 35 shirts, you can calculate this using the following steps:
x% of 50 shirts is 35 shirts
x% * 50 = 35
x/100 * 50 = 35 /*100/50
x = 35 * 100 / 50
x = 70%
Result: 70% of 50 shirts is 35 shirts.
Greetings!To find the
y-intercept, we can arrange the equation in
slope y-intercept form:
Rearrange:
The
y-intercept is:
-13 
To find the
x-intercept, we can input the value
<<0>> in the place of y, as every x-intercept only occurs when
y=0:
Solve for x:
The
x-intercept is:
I hope this helped!
-Benjamin
Answer:
210
Step-by-step explanation:
Lets use BEDMAS (Brackets, Exponents, Division, Multiplication, Addition, Subtraction)
45 ÷ 2 = 22.5
22.5 × 8 = 180
180 - 12 = 168
168 + 42 = 210
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Have a great summer :)
