Let the distance of the first part of the race be x, and that of the second part, 15 - x, then
x/8 + (15 - x)/20 = 1.125
5x + 2(15 - x) = 40 x 1.125
5x + 30 - 2x = 45
3x = 45 - 30 = 15
x = 15/3 = 5
Therefore, the distance of the first part of the race is 5 miles and the time is 5/8 = 0.625 hours or 37.5 minutes
The distance of the second part of the race is 15 - 5 = 10 miles and the time is 1.125 - 0.625 = 0.5 hours or 30 minutes.
Answer:
The sign is negative
Step-by-step explanation:
Given
Required
Determine the sign
The expression can be split into 3 factors
If x > 0 then x is positive and If y < 0 then y is negative
So, the expression becomes:
<em />
Leave only signs
So, we have:
So, we have:
<em>Hence, the sign of the expression is negative</em>
<em></em>
Take for instance;
The expression would be:
-- negative
Answer:
it would be-3,000.000+40.000+7.00+0.09+0.002
Step-by-step explanation:
Slope of 4 means you add 4 to the y and 1 to the x so the answer is (-1,9)
Answer :
x = 2.8
Hope this helps!
