Answer:
C is the only choice that forms a proportion
Step-by-step explanation:
a. 24/31, 20/27
(31 is prime)
b. 8/9, 24/36
(this one doesn't work since it would have to be 3/4) which isn't a proportion
c. 16/5, 64/20
(both 16/5 *4 = 64/20) so it works
d. 6/4 , 15/10
(similar situation to choice b the ratio wont work since 6 doesn't go into 15)
Answer:
The Answer is:
Step-by-step explanation:
First, find the 20% that he must pay:
$3,500 * .20 = $700.
The remaining balance is:
$3,500 - $700 = $2,800
He already paid $1,000 of his deductible of $2,000. He has $1,000 left to pay.
Add that to the $700 to get:
$1,000 + $700 = $1,700 out of pocket.
Answer:
0.7325 to 5.6675 ug/dl
Step-by-step explanation:
The middle 90% will be 45% above the mean and 45% below the mean. This means
0.5-0.45 = 0.05 and
0.5+0.45 = 0.95
We use a z table. Look in the cells; find the values as close to 0.05 and 0.95 as we can get.
For 0.05, we have 0.0505 and 0.0495; since these are equidistant from 0.05, we use the value between them. 0.0505 is z=-1.64 and 0.0495 is z=1.65; this gives us z=-1.645.
For 0.95, we have 0.9495 and 0.9505; since these are equidistant from 0.95, we use the value between them. 0.9495 is z = 1.64 and 0.9505 is z=1.65; this gives us z = 1.645.
Now we use our z score formula,

Our two z scores are 1.645 and -1.645; our mean, μ, is 3.2; and our standard deviation, σ, is 1.5:

Multiply both sides by 1.5:

Add 3.2 to each side:
2.4675+3.2 = X-3.2+3.2
5.6675 = X

Multiply both sides by 1.5:

Add 3.2 to each side:
-2.4675+3.2 = X-3.2+3.2
0.7325 = X
Our range is from 0.7325 to 5.6675.
Answer:
60
Step-by-step explanation:
The least common multiple of 2, 3, 4, 5, and 6 is 3×4×5 = 60.
__
2, 3, 5 are primes, there will be at least one factor of each of those in number you're looking for.
4 = 2², so there must be 2 factors of 2 in the number you're looking for.
6 = 2×3, so is already covered by the factors we have listed so far.
LCM = 2²×3×5 = 60
The least number divisible by numbers 2 through 6 is 60.
Answer:
i need more details
Step-by-step explanation: