You get 30 pencils for 4.50 dollars. How much would 52 pencils cost?
“You get 30 pencils for 4.50 dollars. How much would 52 pencils cost?”Since other posters have already given you the answer, I will teach you how to do the math so you can do your own homework instead of cheating by asking others to do it for you.Step one: Divide the total cost by the number of pencils. In this case, that is $4.50 (or 450¢) ÷ 30 pencils. You should know how to do this. In fact, for this particular problem, you do not even need a calculator or written formula:450 ÷ 10 = 4530 ÷ 10 = 345 ÷ 3 = 15An individual pencil costs 15¢Step 2: Multiply the value of a single pencil (15¢) by the total number of pencils bought:15 x 52 = ~?~No, I am not going to do it for you. But look at these examples:13 pencils x 15¢ = 195¢ = $1.9597 pencils x 15¢ = 1,455¢ = $14.55144 pencils x 15¢ = 2,160¢ = $21.60Now go and do your homework.
How many 100 dollar bills would you need to make a billion?
Surprisingly that depends on where you live.That is because both “dollar” and “billion” are ambiguous.There are some 20 dollars in use in the world, besides the Canadian dollar.A billion long-scale and a billion short scale are defined differently. Not everybody in the world means the same thing. The former billion is 1.000.000.000.000 (12 zeros), the latter 1.000.000.000 (9 zeros).So, for instance Republiek Suriname uses the Surinam Dollar. Surinam also uses the long-scale notation - along with most European countries - where “billion” means a million millions. For the [math]10^9[/math] (billion short-scale) they say “milliard”.So you would need 10.000.000.000 hundred dollar bills in Surinam and a factor thousand less in Australia where short-scale billions are all the rage.
How do I earn a million dollars in 3 months?
To earn a million dollars in 3 months, you need to do the following:Get 20,000 people to give you $17 per month for 3 months.If you can offer a service that people want, you can do that, by emailing Millions of people with a message that will get 20,000 of them to pay you that $17 per month. Do the math. Put together the plan. Stop talking about it and actually do it! It will not happen until you actually DO It! I am doing that very thing on www.allmyneeds.com, by offering a service for people to order pizza on, as well as, other services. The sellers pay me a monthly fee of $17 per month to offer their product or service. Plan it. Do It! No magic. Just hard work and doing the math.
Interest rates help if 2000 dollars is invested in a bank acco?
(Future value) = (present value) * ((1 + (percent) / (periods per year))^(total periods) >> 12 years if interest is compounded quarterly << 2000 * (1 + 0.07)^12 2000 * 1.07^12 = 4504.38 >> 12 years if interest is compounded quarterly << 2000 * (1 + 0.07/4)^(12*4) 2000 * 1.0175^48 = 4599.20 >> 12 years if interest is compounded monthly << 2000 * (1 + 0.07/12)^(12*12) 2000 * 1.00583333^144 = 4621.44 >> 12 years if interest is compounded continuously << Future value = present value * e^(rate * time) 2000 * e^(0.07 * 12) 2000 e^0.84 = 4632.73
If you can buy 12 cans of juice for $8, how much will 18 cans cost?
well if 12 cans cost 8 bucks then that means each can costs 12 / 8 = $.667 so if each can costs $.667, then 18 cans cost 18 X .667 = $12.00 Rob and Taylor... forgive me guys, I knew it didn't look right... it was a random moment of sobriety, I will try not to let it happen again... You were right, and I was wr wr wr wr um incorrect.
If one dozen pencils cost $21, what is the cost of one score of pencils?
1dozen = 12 pencils, and1 score = 20 pencilFirst of all, we need to find the cost of each pencil i.e.12 pencils costs = $ 211 pencil =$ 21/12 =7/4Now,Cost of 20 pencil = $ (20x 7/4) =$ ( 5x7) = $35Hence, cost of one score of pencils is = $35
A rectangular storage container with an open top is to have a volume of 20 cubic meters. The length of its bas?
Let, the length of the base be 2x, width x and height y. Cost, C = 20(2x²) + 3(4xy + 2xy) = 40x² + 18xy ................. (1) Also, y = 20/2x² = 10/x² ........................................ (2) From (1) and (2) we have, C = 40x² + 180/x ; dC/dx = 80x - 180/x² ; The cost will have a minimum if dC/dx = 0. Therefore, 80x - 180/x² = 0 ; 80x = 180/x² ; x³ = 180/80 = 2.25 ; x = 1.3104 metres. y = 10/x² = 10/1.7171 = 5.8238 metres. Minimum cost = 40x² + 18xy = 40 X (1.3104)² + 18 X (1.3104 X 5.8238) dollars. = 206.0533 dollars.