Answer:
5%
Step-by-step explanation:
487/9374=0.05
0.05 would translate to 5%
Hope this helps! :)
In 1975 it was 1000tons, ok, well, in 1976 it went up by 10%, how much is a 10% increase?
well, in 1976 it was 1100 tons then, and in 1977 it went down by 5% of 1100, well, if we take 1100 to be the 100%, then what is a 5% decrease?
Let L be the low copper alloy and H be the high copper alloy.
We need 0.15L + 0.60H = 0.42 and L + H = 100
L=100 - H
Substituting this into the second equation for L, we get:
0.15(100-H) + 0.60H = 0.42(H+L)
15 - 0.15H + 0.60H = 0.42(H+100-H)
15 + 0.45H = 0.42(100)
0.45H = 42 - 15 = 27
H = 27/.45 = 60 lbs
Back substitution, L = 40 lbs.
Answer:
y = x - 6
Step-by-step explanation:
4x-4y=24
Subtract 4x to both sides
4x -4x -4y=24 -4x
-4y = 24 -4x
Divide by -4 to both sides
-4y ÷-4 = 24 ÷-4 -4x ÷-4
y = x - 6
Have a lovely rest of your day! :)
Answer:
14
Step-by-step explanation:
14 + 7 = 21