Reuben's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Reuben $5.90 per pound, and type B coffee costs $4.05 per pound. This month's blend used four times as many pounds of type B coffee as type A, for a total cost of $839.80. How many pounds of type A coffee were

used?

Step-by-step explanation:

Reuben's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Reuben $5.90 per pound, and type B coffee costs $4.05 per pound.

This month's blend used four times as many pounds of type B coffee as type

A, for a total cost of $839.80. How many pounds of type A coffee were used?

$5.90 × A + $4.05B = $839.80

A = 4B

step-by-step explanation:

try remembering the steps

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.