Answer:
Standard score z=0.07
Step-by-step explanation:
The z-score, or standard score, represents an equivalent value for X but in the standard normal distribution, where μ=0 and σ=1.
For X=28.3 in a normal distribution with μ=26.3 and σ=28.1, the standard score can be calculated as:
This value is 0.07 standard deviations right to the mean.
In the picture attached, we have located the z-score.
Answer:
g=3
Step-by-step explanation:
Answer:
the ratio is 12:1
Step-by-step explanation:
2 nonfiction/24 fiction = 12/1
therefore the ratio is 12:1
The constant 2 is the number of pears at the start, answer option 2.
Let us denote the number of tiles by
.
In the first store, if Darin bought
tiles, he would need to spend:
(measured in $)
In the second store, if Darin bought
tiles, he would need to spend:
(measured in $)
For the cost to be the same at both stores, it means (measured in $)
Moving
over to the left hand side and changing signs:
tiles
Let's check. If he buys 60 tiles in the first store, he spends:
$0.79×60 + $24 = $47.40 + $24 = $71.40
If he buys 60 tiles in the second store, he spends:
$1.19×60 = $71.40
∴
Darin needs to buy 60 tiles for the cost to be the same at both stores.
