Multiply 8 total hours by 1/4 to find the number of piano hours.
= 8 * 1/4
= (8*1)/4
= 8/4
= 2 piano hours
ANSWER: He practiced piano for 2 hours.
Hope this helps! :)
Let the number of hours she spent in baby- sitting is x
and the number of hours she spent in music lessons is y.
Now, we have been given that she worked a total of 18 hours. Hence, we have

And she made $139. Thus, we have

Substituting the value of y from equation 1 in 2, we get

Therefore, she spent 11 hours in baby-sitting.
I don't know what the expanded form is but the word form is two million nine hundred forty seven.
Answer:
Step-by-step explanation:
"mix one cup of vinegar with one gallon of water"
1 cup = 8oz; one/4 cup = 2oz
You can see that quantity|the quantity|the number} of vinegar is 1/4 of the first amount,
so, we are going to would like 1/4 of the number of water, that is 1gallon = 128oz
so, 1/4 times 128oz = 32oz, that is one quart
Algebraically, 8oz : 128oz = 2oz : x
8x = 256; x = 32oz
2/5 is the answer to this question because of distributive property. 1/10+1/2=3/5 Then, 3/5-1/5 is equal to 2/5.