Answer:
x = 9
Step-by-step explanation:
x² = 81

9×9 = 81
x = 9
17, 34, 33
i think the pattern is x2 then -1 :]
Answer:
40 bikes
Step-by-step explanation:
x : no. of bikes sold to breakeven
Expenses = Revenue
2400 + 60x = 120x
2400 = 60x
x = 40
Answer:
19a+27b-54
Step-by-step explanation:
First distribute 7 into the first equation. (4a+3b-6) Multiply each coefficient and the constant by 7.
28a+21b-42
Then do the same for -3 and (3a-2b+4).
-9a+6b-12
Rewrite the equation 28a+21b-42-9a+6b-12.
Combine like terms: 19a+27b-54
Answer:
8.66 x 3.94 inches
Step-by-step explanation: