answer
system : 8L+ 4S = 120
L + S = 20
There are 10 small packs and 10 large packs
step by step answer :
to form the two systems, we have to determine the catagories of the 2 equations : one for money and one for the no of packs
after forming the two equations we simply put the numbers in the same order put above on the calculator ( mode 5:1) and the calaculator will answer it in seconds . 10 small packs and 10 large packs.
To check your answer , substitute the letters with their values and if both equations gave you the same value at the end then your answer is correct!
<h2 />
━━━━━━━━━━━━━━━━━━━━━━
Formula for finding the volume of cone - ⅓πr2h
Formula for finding the volume of cylinder - πr2h
Formula for finding the volume of Triangular Prism - Bh
Formula for finding the volume of Rectangular Prism - lwh
Formula for finding the volume of Pyramid - ⅓Bh
━━━━━━━━━━━━━━━━━━━━━━
When I divided my answer was 390.625.
You will pay an interest of $120 for the three years of interest
4% of 1000 is 40
So for 3 years he would pay 40x3=120
All together he would have to pay 1120