# reena

Most popular questions and responses by reena
1. ## physics

On a 120 km track, a train travels the first 30 km at a uniform speed of 30km/h. How fast must the train travel the next 90 km so as to average 60km\h for the entire trip?

2. ## devi

cheena spent 3/4 of her pocket money. she spend 1/2 of it on a book 1/6 on movie and rest on dress what amount she spend on dress

3. ## maths

solve 5sin2x + 12cos2x =11 for 0°«x«180°

4. ## math

The transmitter site of radio station WGGW and the transmitter site of another radio station, WGWB, are on the same highway 100 miles apart. The radio signal from the transmitter site of WGWB can be received only within a radius of 60 miles in all

5. ## algebra

For every positive 2-digit number, x, with tens digit t and units digit u , let y be the 2 digit number formed by reversing the digits of x. Which of the following expressions is equivalent to x-y? a. 9(t-u) b. 9(u-t) c. 9t-u d.0

6. ## Easy Mathematics

What digit could be in the ten millions place of a number that is less that 55,000,000 but greater that 25,000,000? Don't tell me the answer, just tell me how to do it, and what to do also. :D

7. ## math

set S contains all integers from 100 to 200, inclusive. if x is a number in S that is multiple of both 6 and 10, what is one possible value of x?

8. ## math

Bill buys x items at \$3 each, y items at \$5 each, and z items at 6 each. If x,y,and z are each multiple of 5 and the total price of the items costing \$3 and \$5 is 55, which of the following could be the total price of all x +y+z items?

9. ## math

Which of the following can be the average(arithmetic mean ) of four consecutive positive even integers?

10. ## arithmetic

Cheri's time in the bobsled race was 1 min, 38.29 sec. What is the word form and the value of the 9 in Cheri's time?

11. ## math

Bill buys x items at \$3 each, y items at \$5 each, and z items at 6 each. If x,y,and z are each multiple of 5 and the total price of the items costing \$3 and \$5 is 55, which of the following could be the total price of all x +y+z items? a. 66 b. 80 c. 95 d.

12. ## chemistry

50 mL of 1.50* 10^-2 M HI(aq) is mixed with 75.00 mL of 1.10* 10^-2 M KOH(aq). What is the pH of the Final solution

13. ## Maths

Find the value of k if p(4,-2) is the midpoint of the line segment joining the point A. (5k,3)and B(-k,-7)

14. ## arithmetic

Three men are working together can finish a house repair job in 10 days. How many days will 5 men working at the same rate finish the same job?

15. ## math

Which of the following can be the average(arithmetic mean ) of four consecutive positive even integers? a. 2 b.3 c. 4 d. 5 e. 6

16. ## math

set S contains all integers from 100 to 200. if x is a number in S that is multiple of both 6 and 10, what is one possible value of x?

17. ## math

If line l in the x-y plane contains the point (-2,1),(4,5) and (5,t), what is the value of t?

18. ## mat

The functions f and g for x lesser or equal -4, but x greater or equal 6. and g(x)=|f(x)|, what could be the value if f(-3)?

19. ## math

a train 280m long .its speed is 60 km per hour. then ,how much time it will take to cover220m long platform?

20. ## math

what are the prime factors of a number greater than 5 but less than 13. What is the number?

21. ## math

Kevin has a rabbit, ferret, a gerbil, and a turtle. He feeds them in a different order each day. In how many different orders can kevin feed his pets?

22. ## math

Tonya and Lauren are designing a soccer uniform. They want to use two colorson the shirt. Their choices are green,orange,yellow, purple, blue, and silver.How many ways can they choose two colors?

1. ## problem solving

Sara was thinking of a number. Sara divides by 2, then adds 10 to get an answer of 6. What was the original number?

posted on December 15, 2017
2. ## Maths

50km/h

posted on January 5, 2017
3. ## maths

Since BC|| DE and BE || CD with BC bisects CD, BCDE is a rectangle. : opp sides are equal i.e, BE = CD : x + y = 5 ......(1) DE = BC : x - y .......(2) Since perimeter of ABCDE is 21 : AB + BC + CD + DE + EA = 21 3 + x - y + x + y + x - y + 3 = 21 6 + 3x -

posted on July 30, 2015
4. ## Finance

Following are selected balance sheet accounts for Third State Bank: vault cash  \$2 million; U.S. government securities  \$5 million; demand deposits  \$13 million; nontransactional accounts  \$20 million; cash items in process of collection \$4 million;

posted on June 3, 2014
5. ## solid mechanics

posted on July 29, 2013
6. ## math

i got it, thank you for giving the hint. It is d, since after subtracting 55, the only divisible by 6 that has a multiple of 5 is d.

posted on October 26, 2011
7. ## Easy Mathematics

Ok, I see. My fault, and I'm sorry. Thanks. :)

posted on October 6, 2011
8. ## Easy Mathematics

I understand now, thanks. But I don't get how you could have THREE different answers. I know 4(45,000,000) and 3 (35,000,000) are possible answers. But what is the last one?

posted on October 6, 2011