Answer:
15 early tickets were sold and 5 regular tickets were sold.
Step-by-step explanation:
Let x be the number of early bird tickets sold and y be the number of regular tickets sold.
Total number of tickets sold = 20
Thus, we can write the equation,

Cost of early bird ticket = $10
Cost of regular tickets = $15
Total cost = $225
Thus, we can write the equation,

We solve the equation by elimination method by multiplying first equation by 10 and subtracting.

Thus, 15 early tickets were sold and 5 regular tickets were sold.
Answer:
i think it would be c
Step-by-step explanation:
From 8:25 to 30 seconds past 8:29 is 4.5 minutes.
This means she rode her bike 3/4 mile in 4.5 minutes.
Calculate her speed per mile:
1 mile / 0.75 = 1.333
4.5 minutes * 1.333 = 6 minutes per mile.
She needs to ride 3.42 miles, so multiply distance by speed:
3.42 miles x 6 minutes per mile = 20.52 minutes.
0.52 * 60 = 31.2 seconds.
This means it will take a total of 20 minutes and 31 seconds to get from her house to school.
She left at 8:25, add her travel time:
8:25 + 20 minutes and 31 seconds = 8:45 and 31 seconds.
This is sooner than the time school starts so she makes it on time.
Answer:x = 7√3/3
Step-by-step explanation:
The given triangle is a right angle triangle. To determine the value of x, we would apply trigonometric ratios of tan but the opposite side and adjacent sides would depend on the reference angle used. Taking 30 degrees as the reference angle,
Tan # = opposite side/adjacent side
Opposite side = x
Adjacent side = 7
# = 30 degrees
Therefore,
Tan 30 = x/7
x = 7tan30 = 7 × 1/√3 = 7/√3
= 7/√3 × √3/√3 = 7√3/3