31% of 40 is 12.4 exactly
Answer:
Step-by-step explanation:
Reduce factor by 4
A negative divided by a negative equal positve so
Answer:
5/6
Step-by-step explanation:
You just need to turn the denominator and numerator's positions upside down.
Answer:
37.7 mi²/h
Step-by-step explanation:
The area formula is ...
A = πr²
Differentiating with respect to time gives ...
dA/dt = 2πr·dr/dt
Filling in the given values, we have ...
dA/dt = 2π(3 mi)(2 mi/h) = 12π mi²/h
The area is increasing at the rate of about 37.7 mi² per hour.
Answer:
Week and a day
Step-by-step explanation:
You have $30, you save $5 each week and your aunt gives you an extra $10. Equaling out to $15 per week. Since the bike costs $155.75, you subtract your $30, coming out to 125.75 then you divide it by 15 which is 8 days
