Answer:
12 kg
Step-by-step explanation:
15×80/100
15×8/10
120/10
12 kg
First, we have to find the z scores of $4 and $9.50.
Z₁ = ($4 - $6.50)/$2.25 = -1.11
Z₂ = ($9.50 - $6.50)/$2.25 = 1.33
Then, using a z score table, we find the probability of 1.33 and -1.11, and subtract them to determine the probability in between.
0.9082 - 0.1335 = 0.7747 or 77.47%.
#420
because 70x4=420 within 300 and 500 and is greater than 400 which is a multiple of 100
96
Step-by-step explanation:
I think lol
<span>The cost that a carpet cleaning company charges is directly proportional to the number of rooms cleaned. The cost is $22 for each room.</span>