The one number is 3 less than 5 times another number. Their sum is 81. List the numbers.
2 answers:
Answer:
Step-by-step explanation:
Answer:
the numbers are 67 and 14
Step-by-step explanation:
let the other number be x
first number = 5x - 3
second number = x
5x - 3 + x = 81
6x = 81 +3
6x = 84
x = 84/6
x = 14
first number = 5x -3
= 5(14) -3
= 70 - 3
= 67
Second number = x
= 14
CROSS-CHECK
67 + 14
= 81
Cross-checked
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Answer:
393.9
Step-by-step explanation:
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Answer:
27
Step-by-step explanation:
Let :
Number of 40¢ = x
Number of 22¢ = 4x + 3
Total stamp value = $8.34 = (8.34 * 100) = 834¢
40¢x + 22¢(4x + 3) = 834¢
40x + 88x + 66 = 834
128x = 834 - 66
128x = 768
x = 768 / 128
x = 6
Number of 22¢ stamp:
4(6) + 3 = 24 + 3 = 27