Question

Please Help! :)


Tony and Belinda have a combined age of 56. Belinda is 8 more than twice Tony’s age. How old is each?

Salisbury High School decided to take their students on a field trip to a theme park. A total of 150 people went on the trip. Adults pay $45.00 for a ticket and students pay $28.50 for a ticket. How many students and how many adults went to the park if they paid a total of $4770?

Your piggy bank has a total of 46 coins in it; some are dimes and some are quarters. If you have a total of $7.00, how many quarters and how many dimes do you have?

Answer 1

Correct me if I'm wrong, but I believe that this is how I would solve the first problem.

T+B = 56
B = 8 + 2T
T + 8 + 2t = 56
3T + 8 = 56
3T = 48
T = 16

16 * 2 = 32
32 + 8 = 40.

Tony is 16, and Belinda is 40. :)

Answer 2

yes that is correct

Answer 3

Ok, thank you, Can you help me solve the other two please? =)

Answer 4

2. A+S=150
A=150-S
45A+28.5S=4770
45(150-S)+28.5S=4770
6750-45S+28.5S=4770
-16.5S=-1980
S=120
A=150-120
A=30
3. D+Q=46
D=46-Q
.1D+.25Q=7
.1(46-Q)+.25Q=7
4.6-.1Q+.25Q=7
.15Q=2.4
Q=16
D=46-16
D=30

Answer 5

2. A=30
S=120
3. D=30
Q=16

Answer 6

NIALL!