# Thread: Requesting More Math Help [I really should just make my own board Ed.]

1. ## Requesting More Math Help [I really should just make my own board Ed.]

So I've got EQAO tomorrow (yay) ((not))

Been going through the practice booklet~

Alfredo and his wife, Jody, work in a
restaurant.
Last week Alfredo received an average of
\$15 in tips for each of the 55 tables he
served. Jody received an average of \$20 in
tips for each of the 60 tables she served.
They are planning a weekend trip. Alfredo
will pay a total of \$220 for their hotel room
and Jody will pay a total of \$160 for their
rental car.
How much of their combined tips will be
left over after they have paid for their hotel
room and rental car?

a \$1620
b \$1645
c \$2025
d \$2405

Help? D:

2. (55*15)+(60*20)-380 = 1645
==because \$15 average for each 55 table he served==
==\$20 average for each 60 tables===
== minus 380(which is total they spent= 1645 left over

B.

3. ## The Following User Says Thank You to Flame For This Useful Post:

Mint (01-16-2013)

4. Oh okay, thanks @babytroop123456 !

I have another:

Juan belongs to a CD club that sells CDs for \$11.44 each before tax. His first shipment of CDs costs
\$90.49 including 13% tax.
How many CDs are in his first shipment?

I got 7.

5. Originally Posted by Mint
Can you explain what you did? I don't really understand the question :c
edited my post, so theres an explanation

6. Edited my post as well xD

7. 90.49= 11.44(x)+(.13)(11)(x)

you can do the algebra

8. ## The Following User Says Thank You to Graff For This Useful Post:

Mint (01-16-2013)

9. Originally Posted by Mint
Oh okay, thanks @babytroop123456 !

I have another:

Juan belongs to a CD club that sells CDs for \$11.44 each before tax. His first shipment of CDs costs
\$90.49 including 13% tax.
How many CDs are in his first shipment?

I got 7.
11.44x + .13(11.44x) = 90.49
its 7. So you're right. THe equation is above^

10. Here's what I have on my paper.

\$11.44- before tax, each CD.

90.49(0.13)
= \$11.76 <-- tax

90.49-11.76
= \$78.73

\$78.73/\$11.44
= around 7 CDs

11. Originally Posted by Mint
Here's what I have on my paper.

\$11.44- before tax, each CD.

90.49(0.13)
= \$11.76 <-- tax

90.49-11.76
= \$78.73

\$78.73/\$11.44
= around 7 CDs
That also works, but solving it alagabbraeicly would result in the equations me and graff posted

12. Alright, understood! Thanks @Graff @babytroop123456 ~

Here's another one:

A box with a volume of 12x^y^2 is
shown below. (height 2y & length 2x)

What is the width of the box?

#### Posting Permissions

• You may not post new threads
• You may not post replies
• You may not post attachments
• You may not edit your posts
•