Question

a bus can ferry a maximum of 12 people .by setting up an inquality find minimum number of bus that are needed to ferry 80 people​

Answer 1

Step-by-step explanation:

Given a bus can ferry a maximum of 12 people .by setting up an inquality find minimum number of bus that are needed to ferry 80 people

• Given a bus can carry a maximum of 12 people. We need to find minimum number of buses to carry 80 people.
• Now 12 people can go in 1 bus.
• Therefore 1 person can go in 1/12 bus
• Now 1 person can go in 1/12 bus
• Therefore 80 people can travel in 1/12 x 80
•                                                      = 6.6  
•                                                       = 7
• Therefore minimum buses needed will be 7
• Now we can write inequality as 12 x x > = 80
•                       Or x ≥ 80 / 12
•          or x > = 6.6

Reference link will be

https://brainly.co.id/tugas/12639290

Answer 2

Minimum 7 bus needed to ferry 80 people

Solution:

Maximum number of people a bus can ferry = 12

Total number of people = 80

To find minimum number of buses that are needed to ferry 80 people.

Let x be the number of buses.

To set up an inequality for the data given.

12x ≤ 80

Divide by 12 on both sides of the equations.

$\frac{12x}{12} \leq \frac{80}{12}$

$x\leq \frac{20}{3}$

$x\leq 6 \frac{2}{3}$

x ≤ 7

Hence there are minimum 7 bus needed to ferry 80 people.

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