Answer:
Step-by-step explanation:
when you divide fraction, turn the division into × and flip the other fraction
72/7÷8/7= 72/7×7/8=72/8 = 9
21÷7/3 = 21×3/7 =63/7=9
12/7÷2/7 = 12/7 × 7/2 = 12/2 = 6
9÷9/2=9×2/9=18/9= 2
4 2/3 ÷7/9 = 14/3 ×9/7=126/21 = 6
4 1/2 ÷1/2 = 9/2 × 2=18/2=9
First we need to find the common ratio by dividing the second term by the first term. 36/120 = 3/10
an = a1 * r^(n-1)
n = term to find = 5
a1 = first term = 120
r = common ratio = 3/10
now we sub and solve
a5 = 120 * 3/10^(5 - 1)
a5 = 120 * 3/10^4
a5 = 120 * .0081
a5 = 0.972 <=== fifth term
or we could have just done this......since we multiply by 3/10 to find the next number...
a3 = 10.8......10.8 * 3/10 = 3.24 <== 4th term
3.24 * 3/10 = 0.972 <== fifth term
Answer:
y=3x-4
Step-by-step explanation:
slope = 3
(y-5) = 3(x-3)
y-5 = 3x-9
y-5+5=3x-9+5
y=3x-4
Answer:
3z+2= x ; z=5
3(5)+2
15+2
17
Step-by-step explanation:
Total number of people in the sample = 193 + 127 + 96 = 416
Probability of picking 23-30 year old = 92 /416 = 0.2212 ( not including the people who smoke)
Number of people who smoke = 60+35+23 = 118 people
Prob(someone who smokes) = 118/416 = 0.2837
So required probability = 0.2837 + 0.2212 = 0.505 (answer)
