Area of this rectangle
4×3=12cm^2
formula
long side×short side=area of this rectangle
36. The seamstress can cut 36 15-inch pieces of ribbon from 5 rolls of 9ft ribbon.
Never heard of “zinc” sorry buddy cant help
Answer:
x= -20, y= 10
Step-by-step explanation:
Label the two equations:
-7x -10y= 40 -----(1)
x= -2y -----(2)
Substitute (2) into (1):
-7(-2y) -10y= 40
Expand:
14y -10y= 40
Simplify:
4y= 40
Divide both sides by 4:
y= 40 ÷4
y= 10
Substitute y= 10 into (2):
x= -2y
x= -2(10)
x= -20
W + d = 770
w = d + 70
d + 70 + d = 770
2d + 70 = 770
2d = 770 - 70
2d = 700
d = 700/2
d = 350 <=== cost of dryer
