Answer:
F. The total number of minutes Melissa ran in Week 3 is twice the total number of minutes she ran in Week 1.
Step-by-step explanation:
Week 1 total: 69
Week 2 total: 99
Week 3 total: 140
F. On technical means, it was not twice as much it was 2 mminutes over, but this would be the most correct answer.
G. No, they did not, they increased.
H. No, that would mean that on week 3 Melissa would have ran over 168 minutes, which she did not.
J. No, the minute difference each week was much greater than 5 minutes.
Answer:
x=5,y=-12
Step-by-step explanation:
You add the two equations to get: 4x=20
Then you get x=5.
You plug this in to x-y=17 to get y=-12
The answer is x=5 and y=-12
Answer:
Step-by-step explanation:
y=x-3 is basically the graph with the points (0,-3) (3,0) and a straight line between them continuing on in both directions. Jut figure out the x and y intercept, or you could find any two points by setting x equal to any number.
<span>When we remove those parentheses, the sign of every term
within the parentheses changes.</span>
Problem 2. Remove the parentheses.
a) p + (q −r + s) <span>= p + q − r + s</span>
b) p − (q −r + s) <span>= p − q + r − s</span>
In each of the following problems, remove the parentheses, then simplify
by adding the numbers.
For example,
<span><span><span>(x − 3) − (y − 4)</span> = <span>x − 3 − y + 4</span></span> <span> = <span>x − y + 1.</span></span></span>
The sign preceding (x − 3) is understood to be + . Therefore the signs within those parentheses do not change.
But the sign preceding (y − 4) is minus. Therefore, y changes to −y, and −4 changes to +4.
Finally, it is the style in algebra to to write the literal terms, x − y, to the left of the numerical term.
Answer:
C.
Step-by-step explanation:
The answer is C