Answer:
-18b + 66
Step-by-step explanation:
-6 + 9(8 - 2b)
-6 + 72 - 18b
-18b + 66
Answer:
5 15/22 hours
5.6818 hours
Step-by-step explanation:
Distance is equal to the rate times the time
D = rt
We know the rate = 88 km/hr and the distance = 500 km
Substitute these in
500 = 88 *t
Divide each side by 88
500/88 = 88t/88
5 15/22 hours
5.6818 hours
Answer:
75 cookies.
Step-by-step explanation:
So we know that she wants to give 3 cookies to 25 students. So, you just multiply 25 times 3 and you get 75.
Answer:
38.46%
Step-by-step explanation:
There are no names or marking that can make the calculator look different, so the order is not important. Then we should use a combination to solve this problem.
There are 40 calculators in one shipment, 37 of them good items and 3 of them are defect items. We need to choose 19 good calculators and 1 defect calculator. The number of ways to do that will be:
* = 37!= 53017895700
The number of possible ways to choose 20 calculators out of 40 calculators will be:
= =137846528820
The chance will be: 53017895700/ 137846528820 = 0.3846= 38.46%