Answer:
Step-by-step explanation:
We have to write the additive inverse of the second number.
Additive inverse of 4 is (-4)
Additive inverse of (-4) = 4
A. 23 - 3 = 23 + (-3) = 20
B. 7 - (-15) = 7 + (+15) = 22
C. -15 - 4 = -15 + (-4) = - 19
Answer:
50
Step-by-step explanation:
44% of 50 is 22.
Answer:
3x + 4.5x + 1 = 28
3.6 seconds
Step-by-step explanation:
Initial distance apart = 1 foot
Student A:
Walk rate = 3 ft per second
Student B:
1.5*3 = 4.5 ft per second
How long it will take to be a total of 28 feets apart
Distance = speed * time
Let time = x in seconds
Student A distance = 3x
Stident B distance = 4.5x
Initial distance = 1 foot
3x + 4.5x + 1 = 28
7.5x = 28 - 1
7.5x = 27
x = 27/ 7.5
x = 3.6 seconds
Answer:
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Step-by-step explanation:
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