Delow shows the price and weightage for three materials P, Q and R in the year 2018 based on the year 2016. PLA
Material
P
Q
R
Price index
80
130
140
Weightage
у
Given the composite index for material P and Q in the year 2018 based on the year 2016 is
120 whereas the composite index for materials P and R is 125. Determine the ratio x:y:z.
The price index for
X
Z​

your answer is d 2,500

step-by-step explanation:

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

step-by-step explanation:

your mom