4) A mixture contains 15 gallons of water and 5 gallons of juice. If 10 more gal lons of water are added, what part of the mixture is juice

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.