Notebooks=x
pens=y
7=2x+y
8=x+5y ==> x=8-5y
substitute into the first equation
7=2(8-5y)+y
7=16-10y+y
7=16-9y
-9=-9y
y=1
now substitute y to find x
x=8-5y
x=8-5(1)
x=8-5
x=3
assuming you want amount of money for each item, a notebook is $3, and a pen is $1.
Answer:
6.24 units.
Step-by-step explanation:
Use the Pythagorean theorem.
Answer:
The price of 4 apples is Rs 28
Step-by-step explanation:
The price of 1 dozen apple is Rs 84
12 apples =Rs 84
1 apple = Rs 84÷12
1apple =Rs 7
Again
Price of 4 apples = Rs 7 × 4
= Rs 28 Ans,,
I think 10 is the answer, correct me
Answer:hope this helps
Thus, it takes 560 1/3 inch cubes to fill a box with width 2 2/3 inches, length 3 1/3 inches, and height 2 1/3 inches.
Step-by-step explanation: