While shopping this week I misread my shopping list and bought 5 bread and 2 milk. I got a refund and bought 2 bread and 5 milk.
This cost me $4.20 less than my first purchase. How do the prices of bread and milk compare? A) Bread costs $1.40 more than milk.
B) Bread costs $0.60 more than milk.
C) Bread costs $0.42 more than milk.
D) Bread costs $0.60 less than milk.
E) Bread costs $1.40 less than milk
Suppose x is the total cost for the first purchase, cost of the bread = b and cost of the milk = m Then:- y = 5b + 2m y - 4.2 = 2b + 5m Subtract:- 4.2 = 3b - 3m b - m = 4.2 / 3 = 1.4
That is bread costs $1.40 more than the milk. (Answer). Its A
This is a linear equation y=18x. I got this equation by dividing all of the y values by the x value and finding that 18 was the common answer. Then I plugged in 30 for x and solve for y.
