Answer:
30
Step-by-step explanation:
2/9 and 5/6 have a lcm of 30.
Answer:
D
Step-by-step explanation:
I usually use a z-score table, but you can do this with a calculator.
If we go to a z-score table, we first look up the first two digits (in this case, 2.8) in the far left column. Then we find the hundredths digit in the top row (0.07). Where they intersect is P(z < 2.87).
P(z < 2.87) = 0.9979
Answer D.
Answer:
See explanation below.
Step-by-step explanation:
Let's say,
represents the sale price of radio.
Then the marked price of the radio is ![1.25x](https://tex.z-dn.net/?f=1.25x)
The cost price of the radio is ![(1.25x)(0.70)](https://tex.z-dn.net/?f=%281.25x%29%280.70%29)
The discount is simply 25% because the radio is being sold at 25% less then the marked price.
The gain percent is given as:
![\frac{x-1.25x\times \:0.70}{x}\times 100\\\\=12.5\%](https://tex.z-dn.net/?f=%5Cfrac%7Bx-1.25x%5Ctimes%20%5C%3A0.70%7D%7Bx%7D%5Ctimes%20100%5C%5C%5C%5C%3D12.5%5C%25)
The radio is being sold at 12.5% gain.
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