Answer:
49
Step-by-step explanation:
a+87=136
a=136-87
a=49
Answer:
95%
Step-by-step explanation:
0.6 of 40 is 24, she bought 24 green balloons.
24 × 1.5 = 36, she bought 36 yellow balloons.
So we have
40 red
24 green
36 yellow
Then from the rest of the information, 2 red, 2 green, and 1 yellow balloon all popped.
We now have
38 red
22 green
35 yellow
for a total of:
95 balloons out of 100 original balloons, 95%
Answer:
4.8 miles
Step-by-step explanation:
find the rate of change for each minute which is 0.109109...
then multiply by 44 and you get 4.8 miles
Answer:
Original
l = v/r
first multiply each side by r to get it out of the denominator
rl = v
now divide by l to get r by itself
r = l/v
Step-by-step explanation:
Original
l = v/r
first multiply each side by r to get it out of the denominator
rl = v
now divide by l to get r by itself
r = l/v
Answer:
a.380
b.1225
c.21
d.28
e.360
Step-by-step explanation:
a. In this problem permutation is used because order is important. The president and vice president plays different role in a club committee. So, nPr=20P2=20!/18!=380 .
b.In this problem combination is used because order is not important. The two co-captains plays same role in a football team. So, nCr=50C2=50!/2!*48!=1225.
c.In this problem combination is used because order is not important. The hand shakes made are unique. So, nCr=7C2=7!/2!*5!=21.
d.In this problem combination is used because order is not important. The two side dishes order does not matter. So, nCr=8C2=8!/2!*6!=28.
e.In this problem permutation is used because order is important. There is no repetition of letters and every sequence of letter will be unique even with same letters such as BCDE and EDCB are different still have same letters . So, nPr=6P4=6!/2!=360.
