Answer: x = 8
Step-by-step explanation:
9 ( x - 3 ) = 45
distribute 9
9x - 27 = 45
combine constants
9x = 45 + 27
compute 45 + 27
9x = 72
divide both by 9
9x/9 = 72/9
final answer
x = 8
30 hours. Multiply $8.10 by 40 to get $324. Divide $324 by $10.80 to get 30 hours.
Let the side of one square be x. Area = x*x = x²
Then the side of other square would be 2x , Area = 2x*2x = 4x²
Combined area = x² + 4x² = 5x²
This combined area = 45 cm²
Therefore 5x² = 45 Divide both sides by 5
x² = 45/5
x² = 9 Take square root of both sides
x = √9
x = 3
Length of larger square is 2x = 2*3 = 6 cm
Length of larger square = 6cm
Answer: D
Step-by-step explanation:
Answer:
A: 6c=75 If there were 6 movies then 6 times the cost of each movie would equal 75.
B:$12.50 We divide 75 by 6.
C: d+75=100 the cost left on the card plus 75 will equal 100.
D: $25 We subtract 75 from 100
Hope this helps :)
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