lilyy0503
contestada

1. Mr. Xavier took his 18 students and 9 other chaperones to an amusement
park. He paid $882 for admission. Mrs. Yadira took her 11 students and 4
other chaperones to the same amusement park. She paid $489 for
admission. Which equation should be added to the equation 18s + 9c = 882
to determine s, the amount the amusement park charges for student
admission?
A. 22s + 10c = 978
B. 11s + 5c = 489
C. 9s + 5c = 441
D. 11s + 4c = 489

Respuesta :

The answer is D. For Mrs Yadira's class there are 11s 4c and 489 in total.
lublana

Given that number of students taken by Mr. Xavier = 18

Let admission fee per student = $s

Then total charge of students = 18s


Given that number of chaperones taken by Mr. Xavier = 9

Let admission fee per chaperones = $c

Then total charge of chaperones = 9c


Then total fee paid by Mr. Xavier = 18s+9c

which is equal to fee paid $882

So we get equation 18s+9c=882


Same way we can create equation for fee paid by Mrs. Yadira

which is 11s+4c=489

This equation can be added to the previous equation in order to solve for unknown variables s and c.

Hence final answer is D. 11s + 4c = 489



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