I think its 9 because 5x+15=50 you subtract 15 from both sides and then divide.
Based on the scenario, the one that give the best practical interpretation would be :
D. the height of the water in tank , in inches, when the volume is 10 cubic inches
if the volume in terms of height then inverse V is in terms of volume
hope this helps
Answer:
2
Step-by-step explanation:
pls give branliest
Answer:
<em>y = 8</em>
Step-by-step explanation:
330x + 1220y = 12730 (cost of coach tickets plus cost of first class tickets is total budget)
x + y = 17 (number of coach tickets plus number of first class tickets is total number of people)
Solve the second equation for y to get y = 17 - x, then plug that into the first equation and solve for x:
330x + 1220(17 - x) = 12730
330x + 20740 - 1220x = 12730
-890x + 20740 = 12730
-890x = -8010
x = 9
Sarah bought x = 9 coach tickets. Plug that into the second equation and solve for y:
9 + y = 17
y = 8
Sarah bought y = 8 first class tickets.
