Yoko received a $90 gift card for a coffee store. She used it in buying some coffee that cost $8.34 per pound After buying the coffee, she had $48.30 left on her card. How many pounds of coffee did she buy

6.19904076739 lbs.

as a decimal

or

2585/417 lbs.

as a fraction

Step-by-step explanation:

8.34x+48.30=90

        -48.30    -48.30

8.34x=51.70

5170/834=2585/417

6.19904076739 lbs.

or

2585/417 lbs.

hope this helped

Yoko bought 4 pounds of coffee

Step-by-step explanation:

90.00 - 8.34 = 81.66

81.66 - 48.30

33.36 divided by 8.34

4

so Yoko bought 4 pounds of coffee

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

read more on -

step-by-step explanation: