Questions on Algebra: Proportions answered by real tutors!

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Question 222267: For a certain time period the ratio of the dollar value of
exports to the dollar value of imports for the United States
was 2 to 3. If the value of exports during that time period
was 48 billion dollars, then what was the value of imports?
Click here to see answer by rfer(12662)

Question 222371: The ratio of men to women at a certain company is to . How many employees does the company have if there are male employees?

Click here to see answer by stanbon(57361)

Question 222784: In the Dicovering Algebra: An Investigative approach, there is a question that says Find the value of the unknown number in each proportion? The problem is 52/91=42/s. So do i inverse it. Swich it up like this: 91/52=s/42? or keep it the same?
Click here to see answer by jim_thompson5910(28595)

Question 222804: In the Dicovering Algebra: An Investigative approach, there is a question that says Find the value of the unknown number in each proportion? The problem is 52/91=42/s. So do i inverse it. Swich it up like this: 91/52=s/42? or keep it the same?
Click here to see answer by Alan3354(30993)

Question 223200: is 7 over 9 = 21 over 18 a proportion

Click here to see answer by jim_thompson5910(28595)

Question 223228: 1. 12x-(4x+10)=54
2. you estimate that you spend $115 on groceries each month. how much money do you spend on groceries each week?
3. 8x-10(3-x)=42
4. 2/3(x+4)=8
Click here to see answer by rfer(12662)

Question 223297: (x-1)/3 = (x+1)/5
How do I solve this step by step?

Click here to see answer by checkley77(12569)

Question 224055: Having a problem with this proportion:
3/4 = (n+7)
(n+16)
thanks.

Click here to see answer by solver91311(16897)

Question 224078: Hi, I am really confused with my homework and my teacher won't help me so... My quesions is about of course Proportions and Dimensional Analysis. I sort of understand the proportions, but not the other one. Three of my problems are:
a.) 50 meters per second to kilometers per hour.
b.) 0.025 day to seconds. (Now this one I really don't understand)
c.) 1200 ounces to tons (16 oz=1 lb; 2000 lb=1 ton).
And here is one problem for a proportion question:
0.926 meter/1 yard = 20 meters/x yards.
Click here to see answer by solver91311(16897)

Question 224076: Hi, I am really confused with my homework and my teacher won't help me so... My quesions is about of course Proportions and Dimensional Analysis. I sort of understand the proportions, but not the other one. Three of my problems are:
a.) 50 meters per second to kilometers per hour.
b.) 0.025 day to seconds. (Now this one I really don't understand)
c.) 1200 ounces to tons (16 oz=1 lb; 2000 lb=1 ton).
And here is one problem for a proportion question:
0.926 meter/1 yard = 20 meters/x yards.
Click here to see answer by rfer(12662)

Question 224301: Use the formula for simple interest, I = prt. Find p if I = $262.09, r = 4.3%, and t = 3 yr
Click here to see answer by rfer(12662)

Question 224621: you are riding your bike. it takes 28 min to go 8mi. how long will it take you to go 15 mi
Click here to see answer by Alan3354(30993)

Question 224623: you are riding your bike. it takes 28 min to go 8mi. how long will it take you to go 15 mi
Click here to see answer by drj(1380)

Question 224846: Acorn woodpeckers live in families. The family memebers collect acorns and store them in trunks of tress.
Day number collected number eaten
Monday 23 8
Tuesday 29 10
Wednesday 42 9
Which expression best describes the information in the table if the family has stored X amount of acorns before Monday? Why?
a. x+ (-23) +8 (-29) + 10 + (-42) + 9
b. x + 23 +(-89) + 29 +(-10) + 42 + (-9)
c. 23 + (-8)+ 29 + (-10) + 42 + 9-9) - x
d. 23 + 8 + (-29) + 10 + (-42) + 9 x
Click here to see answer by LtAurora(115)

Question 225882: how many meters are there in 4 1/2km?
Click here to see answer by Alan3354(30993)

Question 225891: what is 3/4 divided by 1/4?
Click here to see answer by Alan3354(30993)

Question 225895: HOW MANY KG IS 3000G?
Click here to see answer by Alan3354(30993)

Question 225956: write in standard form the equation of the line with slope =-2 and passing through (4,1)
Click here to see answer by drj(1380)

Question 226125: A shoe store sells 4 pairs of black shoes for every 7 pairs of brown shoes. there were 4,900 pairs of brown shoes sold last year. how many pairs of black shoes were sold??
Click here to see answer by lashae_dee(2)

Question 226147: How would you convert 64 miles an hour into feet per second using proportions?
-Thanks
Click here to see answer by checkley77(12569)

Question 226498: Express the proportion 2:5=4:10 using fractions!!!! Could you please assist me?
Click here to see answer by solver91311(16897)

Question 226640: A giraffe can run 32 miles per hour. What is this speed in feet per second? Round your answer to the nearset tenth.
Click here to see answer by RAY100(1637)

Question 227860: y varies directly with x, y=65 when x=5. find y when x=12.
Click here to see answer by Theo(3464)

Question 229027: Bonnie & Tim do some yardwork for their neighbor. The ratio comparing the amount of time each one works is 7:4. The neighbor pays them $88. If Bonnie worked more, ow much should each of the recieve. In the margin is says that Bonnie made $56.00 and Tim made $32.00
Click here to see answer by stanbon(57361)

Question 229030: r-5/2=r+2/3
Click here to see answer by rapaljer(4667)

Question 229333: how do i do 40% of x is 28 what is x. i dont get it
Click here to see answer by Alan3354(30993)

Question 229417: What number increased by 15% is 230
Click here to see answer by drj(1380)

Question 229458: I need an example on how to solve a proportion using multiplication property of equality
Click here to see answer by drj(1380)

Question 229543: solve for u
-8u+5(u-3)=-18
Click here to see answer by vleith(2825)

Question 229728: Plane A leaves LA for NY at 500 mph, at the same time plane B leaves NY for LA at 650 mph. The towns are 3000 miles apart. How will it take for the planes to meet.
Okay I know distance = rate x time and can figure out that it will take 6 hours for plane A to complete the 3000 miles and 4.6 hours for plane B but how do I set up an equation using distance to find out when the planes will meet?
Click here to see answer by Alan3354(30993)

Question 229922: A bag contained 20 stamps and you used 2/5 of them. How many stamps did you use?
Click here to see answer by edjones(7569)

Question 230410: If y varies directly with x and y = -4.5 when x = 13.5, find x when y = 24.
Click here to see answer by stanbon(57361)

Question 230785: 5 over 8,20 over 32. OK, what you need to do is cross multiply. You multiply 5 and 32 and then multiply 8 and 20. The you get 'the answer' = 'the answer'

Click here to see answer by 42130(1)

Question 230797: My instructor wants to make a wall chart of a computer desktop for this class.She would like the desktop icons to be proportional to the size of her 6x6 chart. if the icons are 3/8 by 3/8, how large should be on her wall chart.
Click here to see answer by Theo(3464)

Question 231114: n/4=0.3/1.5
Click here to see answer by user_dude2008(1861)

Question 231274: the length of a rectangle is 4ft more than twice the with. The area of the rectangle is 48ft squared. Find the length and width of the rectangle.
Click here to see answer by checkley77(12569)

Question 231485: I need help with this problem: 3a/7=-2/5
It's a proportion.
Click here to see answer by Alan3354(30993)

Question 231691: A customer desires to mix her own concrete. The clerk knows that the ratio of cement to sand to gravel is 1:3:4. If the customer needs 1,000 pounds of dry mix, how many pounds of each ingredient should she use?
Please use cross products
Click here to see answer by checkley77(12569)

Question 232586: WHAT IS 37% OF 74
Click here to see answer by rfer(12662)

Question 232897: find the value of x.
x-3 over 8 = 3 over 4

Click here to see answer by unlockmath(1602)

Question 232920: find the value of x.
6x-2 over 7 = 5x+7 over 8
Click here to see answer by rfer(12662)

Question 233342: The ratio of men to women at a certain company is 5 to 6 How many male employees does the company have if there are 66 employees?

Click here to see answer by stanbon(57361)

Question 234219: Hello I Need Help With This Proportion x/6=2/9
Click here to see answer by Alan3354(30993)

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