something is wrong with your question bc 690 plus 575 equals to 1265
The answer is (, )=(6−2, )
X = rate of mechanic who worked 5 hours
y = rate of mechanic who worked 15 hours
x + y = 200
5x + 15y = 1950
you find the first variable in one of the equations, then subsitute the result into the other equation. your answer would be:
the mechanic who worked for 5 hours charged $105 per hour, the one who worked 15 hours charged $95 per hour.
hope this helps :)
ANSWER
EXPLANATION
The given equation is
We add the additive inverse of 31 which is -31 to both sides of the equation to get,
Simplify;
Answer:
d = 5
Step-by-step explanation:
-2(3-d)=4
-6+2d=4
2d=10
d=5
