22 X = Y
x = number of rooms cleaned
Y = cost
200/22 = 9.09 > 9 rooms
160/22 = 7.25 > 7 rooms
Answer:
area = 396 ft²
Step-by-step explanation:
area = (12 x 19) +(19 x 6) + (9 x 6) = 396 ft²
210 m. you divide 3150 and 15 to get the unit rate, 210, which is the answer
Answer:
(3,12)
Step-by-step explanation:
2x+y=18................ equn. (1)
2x+3y=42..............equn.(2)
to eliminate x, subtract equn.(2) from equn.(1)
0-2y=-24
divide via by -2
-2y/-2=-24/-2
y=12
to solve for x, put y in any equation.
from equn. (1) 2x+y=18
2x+12=18
subtract 12 from both sides
2x=6
divide via by 2
2x/2=6/2
x=3
(3,12)
Answer:
96 in²
Step-by-step explanation:
the bottom area is 6x6 = 36 in²
each of the 4 sides are 6x5x0.5 = 15 in²
4(15) + 36 = 96 in²