-11a=121. divide both by -11 and get a=-11
Answer:
Toner = $45.00; ink = $25.50
Step-by-step explanation:
Let T = the cost of a toner cartridge and I = the cost of an ink cartridge
We have two conditions:
(1) T = I + 19.50
(2) 4T + 11I = 460.50 Substitute (1) into (2)
4(I + 19.50) + 11I = 460.50 Remove parentheses
4I + 78.00 + 11I = 460.50 Combine like terms
15 I + 78.00 = 460.50 Subtract 78.00 from each side
15I = 382.50 Divide each side by 15
(3) I = 25.50
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Substitute (3) into (1)
T = 25.50 + 19.50
T = 45.00
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<em>Check:
</em>
(1) 45.00 = 25.50 + 19.50
45.00 = 45.00
(2) 4×45.00 + 11×25.50 = 460.50
180.00 + 280.50 = 460.50
460.50 = 460.50
Answer:
67
Step-by-step explanation:
Adding 6 and 7 together equate to 13. You then switch the digits of 67 to 76 and the number is increased by 9.
Answer:
WWhat
Step-by-step explanation:
