Answer:
a = 15
Step-by-step explanation:
Given
3a + b = 54 ← substitute b = 9
3a + 9 = 54 ( subtract 9 from both sides )
3a = 45 ( divide both sides by 3 )
a = 15
Divide both length and width by the dialtion factor and that will be the dimensions of the new rectangle. 2.5714in by 3.4286in. Round as needed
Answer:
Volume of triangular prism & cube (video)Step-by-step explanation:
Answer:
A (the first one)
Step-by-step explanation:
A demonstrates the associative property of multiplication.
Answer:
42%
Step-by-step explanation:
Water wasted last year = 75,900 gallons
Water wasted this year = 44,022 gallons
Percentage decrease in the amount of water wasted yearly = (Water wasted last year - Water wasted this year) / Water wasted last year × 100
= (75,900 - 44,022) / 75,900 × 100
= 31,878 / 75,900 × 100
= 0.42 × 100
= 42%
Percentage decrease in the amount of water wasted yearly is 42%
