Answer: It's A
Step-by-step explanation: X + Y is the total books, which should equal 8. Some books treat them as X, while the rest treat them as Y. You end up with 12x+18y=108.
Answer:
Im not so sure but i think its the 3rd option 168cm^2
Step-by-step explanation:
Answer:
x2=24−4x
Step-by-step explanation:
Answer:
$37.5+$3r
Step-by-step explanation:
We can assume that the number of rides is r. Since each ride is $3.00, all rides are $3r ($3xr).
We also know that there are <u><em>FIVE </em></u>people going to the fair, with Tory being one and each of her friends. Since the entrance fee is 7.50, we can do 7.50x5 which is $37.5.
Then, you can add it which is $37.5+$3r
Answer:
a. 3, 1, 1, 1, 1, 1
b. 7, 1, 1, 1, 1, 1
c. can't do if throwing all 6 darts
d. 9, 9, 7, 1, 1, 1
e. can't do, as throwing 6 9s only gives us 54 points.
Step-by-step explanation:
We throw 6 darts, each yields us a score of 1, 3, 5, 7 or 9.
We need to answer how we could make a total of:
a. 8
b. 12
c. 27
d. 28
e. 56
I am not entirely clear as to if throwing fewer than 6 darts is allowed, but we'd only need it for c.
The reason we need to throw fewer than 6 for c. is that all the scores are odd, so adding 6 odd scores will always give an even score.
We can create the scores by throwing for the highest score that lets us throw the remaning darts at 1 or more.
a. 3, 1, 1, 1, 1, 1
b. 7, 1, 1, 1, 1, 1
c. can't do if throwing all 6 darts
d. 9, 9, 7, 1, 1, 1
e. can't do, as throwing 6 9s only gives us 54 points.