I believe the answer is C. It doesn't make sense to drop an object from -16 feet, and it doesn't make sense to have a -120 in the equation. It should be positive for it to come out right.
When you multiply or divide two positives or two negatives, the answer is positive.
72/9 = 8
-72/(-9) = 8
Correct answer: Choice D.
253÷2.82 = 89.7 min
1 hr and 29 min and 7 sec
Answer:
(1,6)
Step-by-step explanation:
To solve by substitution, rearrange -x+y=5 to y=x+5 and substitute it into 4x+y=10.
4x + (x+5) = 10
4x+x+5=10
5x+5=10
5x=5
x=1
Now substitute x = 1 back in to find y.
y= (1) + 5
y=6
Solution is (1,6)
Verify substituting both values into each equation in to verify true.
-x+y=5
-(1)+6 = 5
-1+6=5
5=5 True
4(1)+6=10
4+6=10
10=10 True
