21,000 + 0.07(21,000) = 21,000 + 1,470 = 22,470
Answer:
Using the ratio and proportion method, we find that on an average 1.875 rooms can be painted per gallon.
Step-by-step explanation:
Concept: Use the method of ratio and proportion. Given that for 2/5 gallons of paint, we can paint 3/4 of rooms. So, for one gallon of paint, divide 2/5 by 3/4.
2/5 gallons of paint = 3/4 rooms
1 gallon of paint = rooms
So, on an average they can paint 1.875 rooms per gallon.
For more explanation, refer the following link
brainly.com/question/11243787
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B: x=4 hope this helped!!
Answer:
a) 7/10
b) There is no improper fraction form for this
Answer:
use khan academy
Step-by-step explanation: