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

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

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm