TodoSeet TodoSeet

19-03-2018
Mathematics

contestada

A child bus ticket costs $0.40 and an adult’s ticket costs $0.70. A group of 11 individuals pays $5.90 for their fare.
Quantity A
The number of children

Quantity B
The number of adults

which one is bigger? A or B?

Respuesta :

calculista calculista

28-03-2018

Let
A------------> number of children
B------------> number of adults

we know that
0.40A+0.70B=5.90--------------------------> equation 1
A+B=11------------> A=11-B----------------> equation 2

using a graph tool------------> to resolve the equations system
see the attached figure

the solution is
A=6
B=5

the answer is
A is bigger

Ver imagen calculista

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