439 Answered Questions for the topic Pre-Algebra

Pre Algebra Math Algebra Word Problem

10/14/17

I know the answers are 37 cups for decaf and 74 cups for regular. Just don't know how to get those answers.
During the morning rush, a coffee shop sold half as many cups of decaf coffee as cups of regular coffee. If they sold a total of 111 cups of coffee, how many were decaf and how many were regular?... more
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Pre Algebra

10/10/17

rectangular prism w/ square base has a volume of 99 cubic in & height of 11 in. How many softballs w/diameter of 3.8 in will fit into it?
Not sure how to calculate this problem.
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Pre Algebra

10/03/17

Thirty six xections of fencing, all the same length, are joined to form a fence 180m long. How long is each section of fencing?
 Thats it
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09/27/17

To make a circle graph of the following information, what should the measure of each central angle be?
To make a circle graph of the following information, what should the measure of each central angle be? Forty students were asked their favorite type of electronic game. Fourteen said sports games,... more
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Pre Algebra

09/27/17

In how many orders can Carlos memorize the names of the 5 Great Lakes?
please help me..please.. Thank you!
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09/24/17

What is the number of three-letter combinations that can be made using the letters OFF?
Would it be 6. Please help, and thank you!
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09/24/17

How many different panels could be created from this list?
A panel of judges is to consist of six women and five men. A list of potential judges includes seven women and seven men. How many different panels could be created from this list? Please help,... more
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Pre Algebra Pre Algbera help

09/24/17

What is the experimental probability of NOT rolling a five?
A number cube is rolled 300 times and the results recorded: 48 ones, 53 twos, 42 threes, 51 fours, 50 fives, and 56 sixes.  What is the experimental probability of NOT rolling a five? Would it be... more
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Pre Algebra

09/24/17

What is the experimental probability that a T-shirt is printed improperly?
You work at a T-shirt printing business. 75 of 2,500 T-shirts shipped are printed improperly. What is the experimental probability that a T-shirt is printed improperly? Please help me..Thank you!
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Pre Algebra

09/24/17

Which is the best random sample for determining the percentage of the television audience who watch a certain show?
Which is the best random sample for determining the percentage of the television audience who watch a certain show?A. Telephone 3,000 households in any major city.B. Research in the library.C.... more
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Pre Algebra

09/24/17

Estimate the number of trout in the lake. Please help me!
. Game wardens use experiments to help determine the number of trout in a lake. Suppose 50 trout are caught, tagged, and released back into the lake. Two weeks later 90 trout are caught, of which 5... more
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Pre Algebra

09/24/17

Estimate the number of foxes in the forest. Please help me!
Game wardens use experiments to help determine the number of foxes in a forest. Suppose 150 foxes are caught, tagged, and released back into the forest. Two weeks later 100 foxes are caught, of... more
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Pre Algebra

09/22/17

The length of the hypotenuse of a 30°-60°-90° triangle is 23 m. Find the length of the side opposite the 30° angle.
Please help, Thank you for your help. 
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Pre Algebra

09/22/17

Which CANNOT be the lengths of a 30°-60°-90° triangle?
A- 11, 11⁄2, 11√¯3¯ B- 9, 18, 9√¯3¯ C- 8/3, 16/3, 8/3√¯3¯ D- 7/2, 7, 7/2√¯3¯ Please help, I have other questions like this, if you could explain it to me and how to do it. Thank you for your... more
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Pre Algebra

09/22/17

The shorter leg of a 30°-60°-90° triangle is 2.4 inches long. Find the perimeter to the nearest hundredth.
Please help me, Thank you!
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Pre Algebra

09/22/17

In ΔABC, ∠A is a right angle and m∠B = 45. If AB = 28 feet, find AC.
Please help me. Thank you!
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Pre Algebra

09/20/17

what is the actual distance between the cities, to the nearest tenth of a kilometer?
A map has a scale of 3 cm : 7 km. If two cities are 8 cm apart on the map, what is the actual distance between the cities, to the nearest tenth of a kilometer?A. 18.7 kmB. 34.3 kmC. 186.7 kmD. 3.4 km
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Pre Algebra

09/20/17

how many American dollars would you receive, to the nearest cent?
A Canadian dollar is equal to 0.8915 of an American dollar. If you were to exchange 175 Canadian dollars, how many American dollars would you receive, to the nearest cent?A. $175.89B. $196.30C.... more
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Pre Algebra

09/20/17

What are the dimensions of the box that will have greatest volume if the possible corner cuts measure 1 in., 2 in., 3 in., or 4 in.?
You want to make a rectangular box, open at the top, by cutting the same size square corners out of a rectangular sheet of cardboard and then folding up the sides. The cardboard measures 11 in. by... more
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09/13/17

Express this number in standard form. show your work.
8.235 x 10 -4 =
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08/31/17

An athlete is participating in a long distance relay race. The race distance is a total of 43/3 miles. The athlete has already completed 55/6 miles. How much fu
Need help! I've always sucked at math...but I need help ASAP it's due tomorrow morning which is like...12 hours...PLEASE HELP ME!!!
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Pre Algebra Pre Algebra help

08/28/17

Which rule describes the function represented by the table? n: 1,2,3. f(n): 3,8,13.
A- f(n)= 5n-2 B- f(n)= 3n C- f(n)= 6n D- f(n)= 3n-4  PLEASE HELP ME! THANK YOU!  
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Pre Algebra Pre Algebra help

08/28/17

Write a function rule for the table. n: 1,2,3,4. f(n): 1,4,9,16.
A- f(n)=n^2 B- f(n)= n^3 C- f(n)= 3n D- f(n)= 3-n  PLEASE HELP ME! THANK YOU!
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Pre Algebra Pre Algebra help

08/28/17

Write a function rule for the table. n: 1, 2, 3, 4. f(n): 3,2,1,0
A- f(n)= 4-n^ B- f(n)= n^4 C- f(n)= 3n D- f(n)= n^2   is it A PLEASE HELP ME!  THANK YOU!
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Pre Algebra Pre Algebra help

08/28/17

All are input/output pairs for the function f(n) = −2n + 3 EXCEPT
A- f(5)= -7 B- f(2)=1 C- f(1)=1 D- f(3)=-3  IS IT c. PLEASE HELP ME.
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