Answer:
7. 25 and 8. 18. I think it is. I hoped that is was right.
Step-by-step explanation:
150/6=25. 90/5=18.
Say the width is W and the length is L
L=3W (and of course W=W)
Now you use the perimeter formula P=2L+2W
80=2(3W) + 2W)
80=6W+2W
80=8W Divide both sides by 8
W=10
Now that you know the width, substitute it back into L=3W to find the length
L=3(10)
L=30
The dimensions are length: 30 cm and width: 10 cm
4x - 5y = 40
4x = 40 + 5y
x = 10 + 5/4y
The x intercept is 10.
Answer:
a) $0.500 ; (b) $5
Step-by-step explanation:
(a) 11 pound of flour =$5
1 pound of flour = $5/11
1 pound of flour = $0.500
(b) 8hours =$40
1 hour =$40/8
1 hour = $5
