Answer:
The easiest way is: You can change them to decimals, subtract and then change back to fraction
Step-by-step explanation:
To find y, divide the first equation by 2.
y = 4
To find x, use that value for y in the second equation. Add 4, then divide by 2.
15·4 = 2x -4
60 +4 = 2x
64/2 = x = 32
The solution is (x, y) = (32, 4).
Answer:
Understand that a relationship between two variables, x and y, is proportional if it can be expressed in the form y/x=k or y=kx. Distinguish proportional relationships from other relationships, including inversely proportional relationships (xy=k or y=k/x).
Step-by-step explanation:
So like terms are 1 and 7 because they are multiplying to the same variable (in this case no variable is the reason they're like terms) then since they have no variable they are also the constants and the coefficient is the number attached the variable and in this case the -5
B. f(x)=5(6.86x) this the correct anwser