Answer:
X= 35
Z=90
Step-by-step explanation:
sorry I don’t know how else to help
Differentiating once, we have

Differentiating again,


as needed.
The total days on which the school was opened was 302.4 days
This is problem of ratio and proportion. to solve this, fisrt is calculate the convertion factor.
so the house is 30 feet in actual and 4 in wide on drawing
30 feet / 4 in = 7.5 feet / inso in every inch in the drawing is equivalent to 7.5 feet on actual.
1.2 in ( 7.5 ft/ in) = 9 ft
1.6 in ( 7.5 ft/ in) = 12 ft