The difference of two numbers is 4. Their sum is 18. Find the numbers.
2 answers:
You might be interested in
Answer: The answer is: " 72 words per minute. "
___________________________
Step-by-step explanation:
___________________________
This is a "unit rate" problem.
We want to solve for/ find the number of words PER single minute.
___________________________
Given 48 words per (2/3) minute;
How many words per (one) minute?
__________________________
The answer is {48 ÷ (2/3) } words per minute:
Note: dividing by a number is the same as multiplying by the reciprocal (inverse) of that particular number:
Hence:
__________________________
The answer is {48 * (3/2) } words per minute:
__________________________
Write as:
" " ;
__________________________
The "48" can be changed to "24" ; and the "2" can be changed to "1" ;
→ {Since: "48 ÷ 2 = 24 "} ;
___________________________
And we have:
___________________________
" " ;
___________________________
The answer is: " 72 words per minute ."
___________________________
Hope this is helpful to you!
___________________________