First, multiply by the reciprocal and continue.
Answer:
x^12
Step-by-step explanation:
just add the powers.
9+3
Answer:
the first one goes to the 3rd one and the last on goes to the last one
Step-by-step explanation:
Answer:
let this happens after t hours
so
80t + 60t = 392
140 t = 392
t = 392/140
=2.8 hours
Answer:
2:50 PM
Step-by-step explanation:
Step 1: State what is given
Roast takes 3 hours and 40 minutes or 220 minutes
Need the roast to be done by 6:30 PM
Step 2: Subtract 3 hours from 6:30
6:30 - 3:00
3:30 PM
Step 3: Subtract 40 minutes from 3:30
3:30 - 40
2:50 PM
Therefore the roast needs to be put into the oven at 2:50 PM
