Mathematics - 22 September 2006

You are starting a business selling boxres of hand-painted greeting cards. To get started, you spend $36 on paint and paintbrushes that you need. You buy boxes of plain cards for $3.50 per box and then sell them for $5 per box. How many boxes must you sell for your earnings to equal expenses? What will your earnings equal when you break even. PLEASE SHOW YOUR WORK!

2006-09-22 15:20:57 · 2 answers · asked by Anonymous

The product of two whole numbers is 1122.their difference is 1.find both numbers.
show work plz an ty!!!!!!!!!!!!

2006-09-22 15:11:38 · 11 answers · asked by jazzyjj 2

this is solving equations with variables on both sides
so one of ya'll who know this can you help me out with this problem.

2006-09-22 15:03:39 · 7 answers · asked by Anonymous

2006-09-22 15:03:24 · 5 answers · asked by Anonymous

Is there such thing as a zero angle? So, if there is a zero angle, would a zero angle and a straight angle be supplementary?

2006-09-22 14:39:55 · 9 answers · asked by 1234abcd 2

Find the slope and y-intercept for the line x – y = 4.

y= mx + b
m is the slope
b is the intercept

x - y = 4
x - y + y = 4 + y
x = 4 + y
x - 4 = 4 + y - 4
x - 4 = y
slope = 1
intercept = -4

Teacher comment:
Minus 1 because an intercept is a POINT, not a number. Minus 1 for no solution checks. Check your intercept.

2006-09-22 14:38:28 · 5 answers · asked by Anonymous

You have five rays: ray AB, BC, BD, BE, BF. the rays AB and BC form a straight angle. rays BD, BE, and BFcome out of point B on line AC. What is the minimum and Maximum number of complementary angles, and what is the minimum and maximum number of supplementary angles?

I've been stressed out by this problem for a day. I don't think that the rays have to be on the same plane, but I'm not sure. Anything helps! Thanks!

2006-09-22 14:37:10 · 3 answers · asked by 1234abcd 2

2^x=x^2
how do you solve this mathmaticaly?

2006-09-22 14:35:25 · 5 answers · asked by aznskillz 2

you are selling note cards an calenders for a school fundraiser.you have sold 15 items worth a total of $117.a box of note cards costs $10 an a calender costs $7.how many of each items hav u sold? plz help me

2006-09-22 14:29:48 · 3 answers · asked by jazzyjj 2

Find the equation of the line through points (3, 5) and (8, 15). Write the answer in standard form using only integers.

My Answer:

(15-5)/(8-3)

10/5=2
m=2
y=2x+b
15=2(8)+b
15=16+b
-1=b
y=2x-1

slope = (15-5)/(8-3)=2
y intercept = 0

Teacher comments:
Sorry, but I cannot tell what your answer is. It should be an EQUATION but you have given the slope and then the y intercept in different font colors. This is not what you were asked for. Also, minus 1 for no solution checking of the two given points in your eqation.

2006-09-22 14:15:21 · 3 answers · asked by Anonymous

Write the equation y = 3x – 5 in standard form using only integers

2006-09-22 14:09:30 · 6 answers · asked by Anonymous

Find the equation of the line through (1, 4) with slope ¼. Write the answer in slope-intercept form

My Answer:
y=m(x-k)+h

y= ¼ (x-1) + 4

Slope intercept
y= 1/4x –1/4 + 4 = 1/4x + 15/4

teacher comment:Great, except 1/4x means 1 divided by 4x and that is incorrect. Minus 1.
Minus 1 for no solution checks. You must check at least the given point.

2006-09-22 13:58:18 · 7 answers · asked by Anonymous

What is this answer?
A 24-by-40-inch sheet of paper is to be used for a poster, with the shorter side at the bottom. The margins at the sides and top are to have the same width, and the bottom margin is to be twice as wide as the other margins. Find the width of the margins if the printed area is to be .

2006-09-22 13:43:34 · 3 answers · asked by Kmaldona 2

2006-09-22 13:40:29 · 12 answers · asked by Strawberry_Lynn 5

Translate into algebraic symbols (Use n for the variable)

2006-09-22 13:37:24 · 5 answers · asked by britiani j 1

Can anyone out there help me? Answer this question for me I know it has something to do ratio. Something like 7/52 and 1/364. The answer is 3 cents but I need to show the work.

?) Monika's car travels 7km on 1L of gas. She filled her gas tank with 52 L of gas for $28.60. Approximately, how much does it cost her to drive 1km.

There are no tricks it's just a straight forward answer. I know the first step. First you have to multiply seven by 52. Then use the ratios: 7/52 and 1/364. I think you either add, subtract, multiply or etc the ratios to get the answer.

2006-09-22 13:35:53 · 9 answers · asked by Paradox3883 2

A=3.14r2

2006-09-22 13:35:00 · 12 answers · asked by britiani j 1

2006-09-22 13:32:58 · 1 answers · asked by braslinbabe85 2

If f(t) is the quantity in kilograms of a chemical produced after t minutes and g(t) is the quantity in kilograms produced agter t seconds then f ' (t) = 60 g ' (t)

Is this statement correct?

f ' (t) means the derivative of the function f(t) and
g ' (t) means the derivative of the function g(t)

Please tell me on how would you proof this

2006-09-22 13:31:58 · 3 answers · asked by ? 1

What is zero to the zero power? And explain.

2006-09-22 13:23:05 · 15 answers · asked by Anonymous

a.t>1/6
b.t<-1/3
c.t<-30
d.t<-16
e.t>15/2
f.t<27/5

2006-09-22 13:20:07 · 4 answers · asked by cherryvalley2006 2

a.x<=15
b.x>=42
c.x>=21
d.x<=16.5
e.x<=7/3
f.x<=-1/6

2006-09-22 13:13:25 · 4 answers · asked by cherryvalley2006 2

2006-09-22 13:01:17 · 21 answers · asked by Anonymous

can you use median to describe categorical data?

2006-09-22 12:36:34 · 7 answers · asked by bestfriendsforever248953 2

drawn find each probability p(5 and 2) probability of two odd numbers

2006-09-22 12:28:46 · 8 answers · asked by Anonymous

explain using your own words. d not repeat rule that i can read from book. make an example in real life if possible.. i cannot imagine it

2006-09-22 12:21:53 · 6 answers · asked by jacinta_yabao2000 1

I can't seem to solve the age old sphere volume equation (V=(4/3)*PI*r^3) for volume. This is driving me crazy so please help me out if you get a chance!

2006-09-22 12:10:38 · 6 answers · asked by Steve K 1

2006-09-22 12:09:15 · 9 answers · asked by DANIEL R T 2

please use simple words. like you are talking to a kid

2006-09-22 12:07:52 · 8 answers · asked by jacinta_yabao2000 1

NOW WRITE THE ANSWER IN INTERVAL NOTATION

2006-09-22 11:58:48 · 2 answers · asked by Lauren D 4