The answer is 3.75 pounds of water
Answer:
1200 ounces
Step-by-step explanation:
How much of an alloy that is 10% copper should be mixed with 600 ounce of an alloy that is 70%copper in order to get an alloy that is 30%copper?
Let us represent
Number of ounce of 10% copper = x
Hence, our Equation =
x × 10% + 600 × 70% = (x + 600) × 30%
0.1x + 420 = (x + 600)0.3
0.1x + 420 = 0.3x + 180
Collect like terms
0.3x - 0.1x = 420 - 180
0.2x = 240
x = 240/0.2
x = 1200 ounces
Answer:
6x-24
Step-by-step explanation:
The 6 multiplies each part in the parenthesis. So 6 * x = 6x and 6 * -4 = -24
Since it’s division it means that you will have to subtract the exponents (so in multiplication you add them) so when you subtract 4 to -7 it equals to 11 so z^11 should be the answer.
