Mallory is on a budget and wants to determine which cereal is a better buy. a 10-ounce box of cereal costs $2.79, and a 13-ounce box of the same cereal costs $3.99.
i. which box of cereal should mallory buy?
ii. what is the difference between the two unit prices?

i. Mallory should buy the 10-ounce box of cereal.

ii. Difference is that the 13-ounce cost more on 1-ounce.

Step-by-step explanation:

First find the ounce/cost. Which 1-ounce of the $2.79 box of cereal is $0.28/ounce. The $3.99 box of cereal is $0.31/ounce. Therefore the $2.79 is cheaper to buy. The difference is 13-ounce box (which is 3 cents more) cost more in ounce than the 10-ounce.

x=30

step-by-step explanation:

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl