Answer:
2 months
Step-by-step explanation:
you can set up equations for each sister:
(Sarah) y = 3x + 30
(Anna) y = -2x + 40
you can graph them to find where they intersect (2,36) or:
you can set them equal to each other like the following:
3x + 30 = -2x + 40
5x = 10
x = 2
The rectangle is 15cm by 45cm
2(3x)+2(x)=120
6x+2x=120
8x=120
X=15
3(15)=45
Answer:
A) N + Q = 130
B) .05N + .25Q = 15.90
Multiplying equation A by -.05 equals
A) -.05N -.05Q = -6.50 then adding this to B)
B) .05N + .25Q = 15.90 Equals
.20Q = 9.40
Quarters = 47
Nickels = 83
.05*83 + .25*47 = 4.15 + 11.75 = 15.90
Step-by-step explanation:
Answer: 64/3
Step-by-step explanation:
Answer
I think it’s d
Explanation
