Eric's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Eric $5.95 per pound, and type B coffee costs $4.05 per pound. This month's blend used three times as many pounds of type B coffee as type A, for a total cost of $398.20. How many pounds of type A coffee were used?

22 pounds of coffee of type A were used.

Step-by-step explanation:

Given:

Cost of type A coffee is $5.95 per pound, and cost of type B coffee is $4.05 per pound.

A total cost of $398.20 of type A coffee and type B coffee is used in this month.

Now, to find the quantity in pounds of type A coffee were used.

Let the pounds of type A coffee be

According to question, type B coffee used is three times as type A.

So, the pounds of type B coffee used is

Now, to get the pounds of type A coffee were used we put an equation:

Dividing both sides by 18.10 we get:

Therefore, 22 pounds of coffee of type A were used.

b

step-by-step explanation:

the total is 23.97. 0.25% is off so you have to subtracting 25% from 100% and you will get 75% if you convert it to decimal you will get 0.75. you have to find the original because the formula is % times original = total.so you have the total and the % so you just have to plug it in.

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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