Answer: She has 40 nickels and 40 quarters .
Step-by-step explanation:
Let be "n" the number of nickels Theresa has and "q" the number of quarters Theresa has.
You know that she has a total of $12 in nickels and quarters. In cents, this is:
Then, based on this you can write the following expression:
Since , you can rewrite it as:
Solving for "n", you get:
Therefore she has 40 nickels and 40 quarters .
Answer:
17 units
Step-by-step explanation:
s = √15² + 8² = √289 = 17
It's approximately 0.0032
It would be: 20* 10 = 200 ft²
so, the carpet should have the area of about 200 ft²