Answer:
a values of r and a that the answer
50 plus 5x= y X is the number of weeks and y is the total amount.
Ex. 50+5x3=65 dollars
All you wanna do is divide-
490/3 1/2= 140
they make 140 buttons per hour
Answer:
50
Step-by-step explanation:
70+60 =130
180-130 = 50 degrees
Answer: 21 & 18
Step-by-step explanation:
Sum of two numbers is 39
Difference is 3
Let the numbers be x & y
X+y=39........equation 1
X-y=3...........equation 2
X=3+y............equation 3
Substitute equation 3 into equation 1
(3+y)+y=39
3+y+y=39
3+2y=39
2y=39-3
2y=36
Y=36/2
Y=18
Substitute for y in equation 2
X-y=3
X-18=3
X=3+18
X=21
The two numbers are 21 & 18
