Chapter 17 Word Problems
1. If the price of a stock decreases by 20%, and then by an additional 25%, by what percentage has the price
decreased from its original value?
4. 40
B. 45
C. 50
D. 55
2. At Mattress Shop, 75% of the mattresses are memory foam and 20% of the mattresses
are extra firm of
the total mattresses at Mattress Shop, 12% are extra firm memory foam mattresses. What percentage of
the total mattresses are not extra firm non-memory foam mattresses?
Math
E. 8
F.
17
G. 63
H. 80

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:

whats the

could you provide figure.