1)such A coffee maker costs $ 563 more than a blender. The total cost of two such coffee makers and 5 such blenders is $6915.How much does 1 coffee maker cost?

$1390

Step-by-step explanation:

Given that :

Let :

Cost of blender = x

Cost of coffee maker = x +563

2(x + 563) + 5x = 6915

2x + 1126 + 5x = 6915

7x = 5789

x = 827

Cost of coffee maker = (827 + 563) = 1390

2^y = ln 5, or   y(ln 2) = ln 5.   solving for y,   y = (ln 5) / (ln 2).   y=5

step-by-step explanation: