Answer:
Hello! answer: -6
4 ÷ 2 = 2 5 - 8 = -3
2(-3) = -6 therefore the answer is -6 hope that helps!
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:
Its A because it is
Step-by-step explanation:
5 x 0.5 x 3.14 = 7.85
Answer:
Step-by-step explanation:
3(2 + 3 + 4)^2
3(9)^2 = 3(81) = 243
Answer:
21/7
Step-by-step explanation:
