A colony of bees have produced about 4 oz of honey. Some time later they have about 7oz of honey. If the bees produce at a rate of 1.5% per hour, how many hours did it take?

It took 50 hours to produce 3 oz of honey.

Step-by-step explanation:

Rate of production= 1.5% per hour

Initial amount of honey = 4 oz

Final amount of honey = 7 oz

Honey produced = 3 oz

Amount produced = (initial amount x rate x time) /100

3 = (4 x 1.5 x t) /100

300 = 6t

t = 300/6

t = 50 hours

It took 50 hours for the bees to produce 3 oz of honey.

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m