Answer:
Explanation:
The initial information given is 15 minutes = 6 words.
Divide 100 words total by 6 words for 15 minutes. This will give a number to multiply by.
100÷6 = 16 2/3
There are two ways I did this.
Option 1:
Step 1: Multiply both the 15 minutes and the 6 words by 16.
You get 240 minutes=96 words.
Now you need to make the 6 words to 4 words to get to the 100 words.
Step 2: Divide both sides (the 15 and the 6) by 3, and you get 5 and 2. Multiply both the 5 and the 2 by 2 and get 10 and 4. You want the four to get the 96 to 100.
Add that to the partially finished equation (the bolded and underlined).
(240 minutes + 10 minutes) = (96 words + 4 words) = (250 minutes=100 words)
Another way you could do the second step is to just multiply 2/3 by 15 and 6. Much faster.
Option 2:
Much faster and easier.
Multiply the 15 minutes = 6 words by 16 2/3. Change 16 2/3 to mixed number of 50/3 and then save product to calculator memory for easier way.
15 • 16 2/3 = 250 minutes 6 • 16 2/3= 100