Hamburgers and spaghetti are preferred almost equally.
Since those lines are parallel, those two angles are equal. Therefore:
3x+15=105
3x=90
x=30
<span>solution:
we have, mean =8.4 hrs, std. deviation = 1.8 hrs, sample size n = 40 , X = 8.9
Probability(X<8.9) = ?
we know that, Z = (X - mean)/(std. deviation/(sqrt. n)) = (8.9 - 8.4)/(1.8/(sqrt.40))
Z = 1.7568
from standard normal probabilities table, we have , P(Z<1.7568) = 0.9608
Hence, probability that the mean rebuild time is less than 8.9 hours is 0.9608</span>
12 x 20 = 240
3.5 x 20 = 70
it costs $70
Hope I Helped. =)
Answer:
x=5x66=300
Step-by-step explanation: