Answer: 30 something?
Step-by-step explanation:
Answer:
70
Step-by-step explanation:
is/of = %/100
Change your is to x so you solve for it, so x/50 = 140/100, now cross multiply and it is now 100x = 7000, divide by 100, so x or (is) is 70
Answer:A)0.27
B)0.78
Step-by-step explanation:
This is the probability of picking 2balls of same color.
P(RR)+Pr(WW)+Pr(BB)
3/10×2/9+4/10× 3/10+3/10 ×2/9=6/90+12/90+6/90=
24/90=4/15=0.27
B)if the first ball is not returned, then there are 9 balls left.
Then probability of same color will be
PrB+PrW+PrR
2/9+3/9+2/9=
7/9=0.78
Answer:
n=13.5
Step-by-step explanation:
2[(14 - 3) + 43÷4] - 2.5 × 12 = n
2[11+10.75]-2.5×12=n
2[21.75]-2.5×12=n
43.5-2.5×12=n
43.5-30=n
13.5=n aka n=13.5