Answer:
7500 feet is the lowest sea level or half of the earth
Step-by-step explanation:
mark as brainliest
Answer: x = 37 and y = 24
Step-by-step explanation:
So I assume the question means x+11=y*2 and x-25=y/2. I couldn't write all the steps on here because I did it on paper but the answer is x = 37 and y = 24
Answer:
- 24 ounces of solution B
- 16 ounces of solution A
Step-by-step explanation:
The largest contributor of salt to the mix is the 45% solution (B), so we'll let our variable (b) represent the quantity of that. The total amount desired is 40 ounces, so the quantity of solution A is (40-b) ounces. Then the amount of salt in the mix is ...
0.45b +0.20(40-b) = 0.35(40)
Simplifying and subtracting 0.20(40), we get ...
0.25b = 0.15(40)
b = 40(.15/.25) = 24
(40-b) = 16
The scientist should use 24 ounces of Solution B and 16 ounces of Solution A.
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The cd costs less than the dvd, therefore, the cd is less than (or <) then the dvd