First we substitute the given values into the problem
so (-5) + 14 (-15)
then do the multiplication
(-5) + -210
now add
-215
Hope this helps :)
Answer:
iomnjiujjii
Step-by-step explanation:
lio;
9/8 because you multiply 3 × 3 and leave the denominator the same
Step-by-step explanation:
$20/hr carpenter pay
$25/hr blacksmith pay
Let c = hours working carpentry
Let b = hours working as blacksmith
c + b = 30 {equation 1}
20c + 25b = 690 {equation 2}
In equation 1 solve for one variable in terms of the other.
c = 30-b
Substitute that into equation 2:
20(30-b) + 25b = 690
600 - 20b + 25b = 690
5b = 90
b = 90/5
b = 18 hours working as a blacksmith
c = 30-b = 30-18 = 12 hours as a carpenter
Answer:
20
Step-by-step explanation:
your welcome!!
