# Posts by KAREEN

Total # Posts: 51

**Math**

A picture frame has a height of 10cm and width 8 cm. If you take 2 1/2 from the height from both sides and 2 cm from one side, what is the area? 24 cm sqrt

*August 22, 2015*

**Math**

A treasure box contained 3 bags of mint and 4 bags of chocolate. What is the probability of a student grabbing a bag of mint without looking? 3/7

*August 22, 2015*

**Math**

Six people used a spa for 20-40 min. for an average of 48 minutes.How many would be able to use it for 50 minutes if one person used it for 50 min is the answer 8

*August 22, 2015*

**Math I am lost!**

Tom travelled to the train station at 60 mph and arrived 1 minute earlier. He then travelled back home at 30 mph and arrived 1 minute late. How long was the trip. D= 60 * T - 1 + 30*T+1 60T+30T -1+1 90 t

*August 22, 2015*

**Math- Need Help**

If 5x +4y and 4x +3y =5 15x +12y =18 16x +12y = 20 31x/31= 38/31 x= 1 7/31 20x +16y =24 20x +15y = 5 31/y/31 = 29/31 y=29/31 x +y = 1 7/31 + 29/31 2 5/31

*August 21, 2015*

**Math**

If 5x +4y and 4x +3y =5 15x +12y =18 16x +12y = 20 31x/31= 38/31 x= 1 7/31 20x +16y =24 20x +15y = 5 31/y/31 = 29/31 y=29/31 x +y = 1 7/31 + 29/31 2 5/31

*August 20, 2015*

**Math**

3x - 2= 8 3x-2+2 = 8+2 3x= 10 3x/3 = 10/3 x= 3 1/3

*August 20, 2015*

**Math**

What percentage is $6 of $20? 6/20 *100 = 30%

*August 20, 2015*

**Math**

what is 30% of $325? 30/100 *325= $97.50

*August 20, 2015*

**Math**

(x+3) (x+9) x sqrt +27

*August 20, 2015*

**Math**

Thank you

*August 20, 2015*

**Math**

(x-1) (x-8) x sqrt +8

*August 20, 2015*

**Math**

Thank you

*August 17, 2015*

**Math**

Sorry a= b/5

*August 17, 2015*

**Math**

Ok 5a=b 5a/5 =b/5 answer = b/5 Thank you

*August 17, 2015*

**Math**

If 5a =b, then a = answer = 5(a+b)

*August 17, 2015*

**Math**

Thank you. I was going crazy trying to think what else to do

*August 17, 2015*

**Math- Please tell me what I did wrong!**

(4x-1)/5 =2x+1 5*(4x-1)/5 =2x +1 *5 4x-1 = 10x+5 4x-1 +1 =10x +5+1 4x = 10x+6 4x-10x = 10x+6-10x -6x = 6 -6x/-6 = 6/-6 x = -1

*August 17, 2015*

**Math**

Answer -1

*August 17, 2015*

**Math**

Solve for x 4 x-1 / 5 = 2x +1

*August 17, 2015*

**Math**

Ok thank you

*August 17, 2015*

**Math**

Which of the following is a solution of the inequality -3 is less than 2x +1 is less than 5 Answer = 4

*August 17, 2015*

**Math**

The height of a cylinder is 15ft with a radius of 7ft. What is the radius of a similar cylinder with a height of 10ft. Is the answer 4.66 ft?

*August 13, 2015*

**Math**

Thank you

*August 13, 2015*

**Math**

A student needed to get a final grade of 90 to get a grade of A for the semester. He scored 83, 85, 92, 86, and 87. If the last two scores would be counted as one score. What is the least grade the student would need to get to get a final grade of A? Is the answer 45?

*August 13, 2015*

**Math**

Thanks again

*August 13, 2015*

**Math**

How many games has the team won so far? 42 How many games will they play this season? 110 How many games do they need to win? 77 How many more games do they need to win? 35

*August 13, 2015*

**Math**

A baseball team wins 60% of their first 70 games. They have 40 games left in the season. How many more games do they need to win to get a perfect 70%. Is the answer 35%?

*August 13, 2015*

**Math**

Thank you

*August 13, 2015*

**Math**

The perimeter of a rectangle is 62 cm. The length is 5 less 2 times the number x. What is the width? Is the answer 18?

*August 13, 2015*

**Math**

Thank you

*August 13, 2015*

**Math**

6, 7, 8, 9, 12, 13, 14, 16, 23, 23 A student did the following push ups in gym class. Which of the following would be used to say he did the most push ups? mean median mode mean-13.1 median- 12.5 mode-23 The answer is the mode?

*August 13, 2015*

**Math**

A student needed to get a final grade of 90 to get a grade of A for the semester. If the last two scores would be counted as one score. What is the least grade the student would need to get to get a final grade of A? Is the answer 45? /

*August 13, 2015*

**Math**

Thank you

*August 13, 2015*

**Math**

8 ft of ribbon cost $4.80. The ribbon was cut into pieces measuring 16 inches. What is the cost of each piece? Is the answer $0.80?

*August 13, 2015*

**Math**

Thank you!

*August 13, 2015*

**Math**

There are 24 marbles in a jar. Nine of the marbles are yellow and the remainder are blue. What is the probability of picking one blue marble from the jar? Is the correct response 5/8?

*August 13, 2015*

**Math**

No it did not give an average. This makes sense. Thank you. If it did give an average. The answer would then be 5+5+9+x+12 27+ x/5 = ?

*August 13, 2015*

**Math**

Are you saying I could write any number there. My thinking is that the range of all the children is 7 therefore the 5th child would be 12. I am completely lost and have no idea the solution here!!!!

*August 13, 2015*

**Math**

There are 5 students in a classroom. The median age of the children are 9. Two of the children ages are 5. The range of all the students are 7. What is the age of the second to the last child? 5, 5, 9, ? , 12 Is the answer 12? May you please give an explanation to this problem.

*August 13, 2015*

**math**

A car travels 200 miles at 55 miles per hour at 22 miles per gal. How many gallons of gasoline would it use in 5 hours? my answer is 12.5 gals.

*August 7, 2015*

**jones high school**

Thank you

*August 7, 2015*

**jones high school**

which of the following represents a function on a line. ellipse circle horizontal vertical Is the correct answer vertical?

*August 7, 2015*

**math**

8/240=x/720 240x=5760 240x/240= 5760/240 x=24

*April 6, 2013*

**math**

8ft ribbon cost $4.80. The ribbon was cut in pieces of 16 in. What is the cost of each piece? $0.80

*August 23, 2011*

**DIFF. CALCULUS**

A particle is moving along the parabola 4y = (x + 2)^2 in such a way that its x-coordinate is increasing at a constant rate of 2 units per second. How fast is the particle's distance to the point (-2, 0) changing at the moment that the particle is at the point (2, 4)?

*November 18, 2010*

**chemistry**

A solution containing 4.5 grams of non-electrolyte dissolved in 125 grams of water freezes at -0.372 degrees. Calculate the molar weight of the solute.

*September 12, 2010*

**Science**

good day! can you please give me the wave explanation for colors? i need it for my report tomorrow. i need an immediate answer please!

*July 4, 2010*

**Math**

1hr and 45 mins.

*February 10, 2010*

**biology / plasmolysis of human red blood cells**

Plasmolysis of human red blood cells would occur if the cell were in .. solution A) isotonic B) hypertonic C) hypotonic D) none of these I think it's B. I'm not too sure though.

*November 27, 2007*

**Identifying controls and Variables**

i need help with control and variables sheet with the spongebob and bikini bottom pals

*October 1, 2006*

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