jedizoezo
23.08.2021 •
Mathematics
The sum of the speeds of two trains is 719.7 miles per hour. If the speed of the first train is 2.3 mph faster than that of the second train, find the speeds of each.
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Ответ:
m packs = 1.09*m = 1.09m
1 composition book = $2.79
n composition books = 2.79*n = 2.79n
Total cost = (1.09m + 2.79n)
Since there is a discount of 5%, the net price would be: 100% - 5% = 95%
Net Cost = 0.95*(1.09m + 2.79n)
Cindy's bill = $ 0.95*(1.09m + 2.79n)