Brazilian coffee costs $7.00/lb, and columbian coffee costs $9.00/lb. how many pounds of columbian coffee can be added to 30lb of brazilian coffee to make a blend that costs no more than $7.50/lb?

From 1 to 10 pounds of Colombian coffee can be added to make a blend that costs no more than US$ 7.50 per pound. If we add 11 or more, the blend will cost more than US$ 7.50 per pound.

Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

Price of the Brazilian coffee = US$ 7 per pound

Price of the Colombian coffee = US$ 9 per pound

Amount of Brazilian coffee to make a blend = 30 pounds

2. How many pounds of Colombian coffee can be added to 30 pounds of Brazilian coffee to make a blend that costs no more than $7.50/lb?

Amount of Colombian coffee to make a blend = x pounds

We will use the following linear equation to solve for x, this way:

(30 * 7 + x * 9)/(30 + x) = 7.50

(210 + 9x)/(30 + x) = 7.50

210 + 9x = 7.50 (30 + x) (Multiplying by 30 + x at both sides)

210 + 9x = 225 + 7.5x

9x - 7.5x = 225 - 210 (Like terms)

1.5x = 15

x = 15/1.5 = 10

From 1 to 10 pounds of Colombian coffee can be added to make a blend that costs no more than US$ 7.50 per pound. If we add 11 or more, the blend will cost more than US$ 7.50 per pound.

because they could drop even lower..

answer: yard ramps with a level off platform are typically 36 feet long. truck, rather than at an angle, enabling access to those pallets at the very back of the truck. if you are using your yard ramp to convert a loading dock into a drive-in door, we even at 60 inches (5 feet) high and a 30 foot ramp, the slope of the ramp will be less

step-by-step explanation: