The area is one side times the other side
Make the other side x.
12x=42
x=42/12=3.5
The perimeter is 2x+2y where x and y are sides of the rectangle.
P= 2(3.5)+2(12)=7+24=31 inches
Hope this helps.
1.5 and 3/2. 1.5 because 1/2 is equal to 0.5. 3/2 because it can be converted into an improper fraction
We have to set up 2 equations:
A) x + y = 10 liters
B) .05x + .25y = 10 * .10
Multiply equation B) by -4
B) -.2x - y = -4 then add to equation A)
A) x + y = 10 liters
.8x = 6 liters
x = 7.5 liters of 5%
y = 2.5 liters of 25%
Okay so Sam has completed 5/13 of the crossword puzzle and wants to do 8/13.
So we need to find out how many more she wants to do.
8/13-5/13=3/13
She has 3/13 has to complete.
