80% of (Cost) = $68
80% is also 0.8:
0.8 x Cost = $68
dividing each side by 0.8
Cost = 68 / 0.8 = 85 = $85
Answer:
wait of a ?
Step-by-step explanation:
2.25 x 3 = 6.75
,6.75 x .05 = 0.34
,6.75 + 0.34 = 7.09
,Answer is $7.09
Answer:
L= 16 m
W= 12 m
Step-by-step explanation:
let us define the parameters of the parallelogram
let the length be L
and the width be W
given that the W= L-4
perimeter= 72 meters
We know that the perimeter of a parallelogram is given as

Substituting W= L-4 for W we have

Divide both sides by 4 we have

From w= L-4 we can find w by setting L= 16
W= 16-4
W= 12 m