Answer:
23d + 45 = 137
Explanation:
Since it is $23 per day, that dollar amount must be associated with a variable that multiples it per day that it is rented. Finally, you need to add the one time $45. This equation can then be used to find how many days it was rented for.
23d + 45 = 137
23d = 92 (Subtract 45 from both sides)
d = 4 (Divide by 23 on both sides)
The rug-cleaning machine was rented for 4 days. You found this using the equation: 23d + 45 = 137
Let's see -
Let's solve the first question step-by-step
(WARNING - This may confuse you a little)
1)
4 1/8 + 2 1/3
= 33/8 + 2 1/3
= 33/8 + 7/3
= 155/24
= 6 11/24 --------> Note that this is your final answer and it already looks simplified down to its simplest form. :)
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2) This equation, as far as solving it, is no different than number 1. Let's go for it!
5 17/18 - 2 2/3
= 107/18 - 2 2/3
= 107/18 - 8/3
= 59/18
= 3 5/18 -----------------> This is your final answer, and, as before, it looks simplified enough.
↑ ↑ ↑ Hope this helps! :D
