The equation that can be used to find the number of hours, t, it takes Bob and Nina to make 60 leashes together is 7.5 t = 60
Step-by-step explanation:
Bob and Nina make dog leashes
We need to write an equation that can be used to find the number of hours, t, it takes Bob and Nina to make 60 leashes together
∵ Bob can make 7 leashes in 2 hours
∴ The rate of Bob = 7 ÷ 2 = 3.5
∴ Bob can do 3.5 leashes per hour
∵ Nina can make 4 leashes in 1 hours
∴ The rate of Nina = 4 ÷ 1 = 4
∴ Nina can do 4 leashes per hour
∵ They will work together for t hours to make 60 leashes
∵ The number of leashes = Bob's rate × t + Nina's rate × t
∵ Bob's rate = 3.5 leashes/hour
∵ Nina's rate = 4 leashes/hour
∵ The number of leashes = 60
∴ 3.5 t + 4 t = 60
- Add like terms in the left hand sides
∴ 7.5 t = 60
∴ The equation is 7.5 t = 60
The equation that can be used to find the number of hours, t, it takes Bob and Nina to make 60 leashes together is 7.5 t = 60
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We can learn more about the equations in brainly.com/question/10689103
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