Answer:
#1 is correct
Step-by-step explanation:
24 laps divided by 6 minutes equals 4 laps per minute.
72 laps divided by 18 minutes equals 4 laps per minute.
15 breaths divided by 36 seconds does not equal the same rate as 90 breaths divided by 3 minutes.
220-12=208 is your answer
Step-by-step explanation:
Since <em>a</em> is the final altitude after <em>t</em> minutes, we can plug in 21,000 for <em>a</em> in the given equation.
21,000 = 3400t + 600
Solve for t.
20,400 = 3400t
t = 6 minutes
Answer:
7y + 24
Step-by-step explanation:
Think of the negative sign to the left of the parentheses as being -1. Then apply the distributive property. The effect of a negative sign to the left of parentheses or a 1 to the left of parentheses is that each term inside the parentheses changes sign.
-(-7y - 24) = -1(-7y - 24) = (-1)(-7y) - (-1)(24) = 7y - (-24) = 7y + 24
This should be the graph that goes with this equation.
hope this helps!
