Answer:
Becky spend 1.25 hours in piano practicing.
Step-by-step explanation:
Let us assume that Becky spends x hours in practicing piano.
If she spent 
of her piano practice time on her recital piece.
Then she spent 
hours on her recital piece.
So, she spent 
hours on other pieces.
Now, given that 
⇒ x = 75 minutes = 1.25 hours
Therefore, Becky spend 1.25 hours in piano practicing. (Answer)
Answer:
just figue out 2x2 then the answer subtract 12x then subtrct 191
Step-by-step explanation:
Answer:
a. 1.65s+1.36k=118.17 and s+k=79
b. Mr Sanchez with $61.05
c. 61.05 - 57.12 = $3.93
Step-by-step explanation:
A system of equations is 2 more or more equations with the same variables that relate information about a situation. Here the variables will be S for the number of Mr. Sanchez's class fruit sold and K for the number of Mr. Kelly's bottles of fruit juice sold.
The first equation can be written as 1.65s +1.36k = 118.17 for the total amount of money sold. This equation says $1.65 per item sold by Mr. Sanchex plus 1.36 per item sold by Mr. Kelly equals a total of $118.17.
The second equation can be written between the total number of items sold which was 79. This is s+k=79.
To solve, graph, substitute or eliminate to find s or k. Here we will substitute by rearranging s+k=79 as k=79-s.
1.65s+1.36(79-s)=118.17
1.65s+107.44-1.36s=118.17
0.29s+107.44=118.17
0.29s = 10.73
s= 37 items sold in Mr. Sanchez's
Substitute again into the equation s+k=79.
37+k=79
k=79-37
k= 42 items sold in Mr. Kelly's
This means Mr. Sanchez's earned $1.65(37)=$61.05 and Mr. Kelly's earned $1.36(42)= $57.12
T=5
divide both sides by numeric factor on left side then solve
Do the opposite to the x..if it was -2x you plus that
