1. Math

A shop owner blends three types of coffee,A,B,C.in the ratio 3:5:7 a) calculate the weight of each type of coffee in 45kg of three blended mixture. b) given that type A coffee cost \$7 per kg, type B coffee costs \$10 kg and type C coffee costs \$13 per kg,

2. Social studies

Why did the Republicans in Congress feel of the 14th amendment was necessary? A- they worried the healthy Southern planters would not comply with the civil rights act B- they were that president Johnson would not enforce the civil rights act C- they

3. math(A.P/G.P)

the population of a country was 55 crores in 2005 and is growing at 2% p.a C.I , the population in the year 5015 is estimated as ? a)5705 b)6005 c)6700

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4. Math

Jenny's lawn is 1/3 of an acre. After moving 1/2 of the lawn, how much of an acre has she mowed? A. 1/5 B. 1/6 C. 1/2 D. 2/5 ______________________________ A leaking bucket is filled to 3/4 capacity. After some time, 1/2 of the water has leaked out. What

5. Physics

The focal length of a small concave mirror is 2.5cm in order to use this mirror by dentist .The distance of tooth from mirror is

6. science

A ray of light is incident at 40 degrees to a plane mirror. What is the angle between the incident and the reflected rays?

7. Math

1. Find the product in simplest form 2/5 x 3/7 A. 14/15 B. 5/12 C. 6/35 D. 1/5 2. find the product in simplest form 9/10 x 5/7 A. 1 13/50 B. 9/14 C. 14/17 D. 4/7

8. Chemistry

Hello, If I add water to a solid, how do i represent it in a equation with phases? for example the NaNO3 was the solid in this case and H2O was the liquid, does NaNO3 turns into an aqueous or stays as solid when I write the equation? Which one would be

9. Algebra

The peak of California's Mount Whitney stands 14,495 feet above sea level. What is the integer that best expresses the given​ number?

10. Algebra

Use a commutative law to find an equivalent expression. st An equivalent expression of st is...........

11. Algebra

Use multiplying by 1 to find an expression equivalent to 15 Over 19 with a denominator of 19 z19z. The equivalent expression is ..........

12. Algebra

Describe the situation from the viewpoint of each person. During a game​, a person wins 450 points​, and another person loses 250 points. Which real number corresponds to ​'wins 450 pointspoints​'? Which real number corresponds to ​'loses 250

13. math

At Sunnyside Place, as of March 31, a total of 12 residents have moved out. What is your property’s annualized turnover percentage rate? Note: this is connected to the first Sunnyside Place apartment question, which total apartments are 100 Again, thank

14. math(geometric series)

the common ratio of the infinite geometric series whose 2nd term is 3/2 and its sum is 8?

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15. chemistry AS

how do you draw the skeletal structure for (z)-pent-2-ene.

16. Language

write one word that means the same as the phrase: expressed his regret is the phrase but this is the whole sentence : The father expressed his regret for his misconduct of his son. PLEASE HELP! I have also tried to answer nearly all your questions! I have

17. Chemistry

Using equation only. Show how tetraoxosulphate(IV) can be prepared industrially

18. Math

On friday,a cold front came through the city at 8am that dropped the outside temperature at an average rate of 2 degrees every half hour. Which integer represents the change in temperature from 8am to 11am

19. english

I can't seem to find the relative clause in this sentence, can someone help me? Thanks. "Fables that were written by Aesop usually feature speaking animals."

20. abstract reasoning

what is the meaning of silver and gold have I none?

21. math

An applicant earns \$9 per hour and works 40 hours per week in typical weeks. Four weeks out of the year the applicant works an extra 10 hours per week. (Any hours over 40 in a week, the applicant receives overtime pay at "time and 1/2") There are 52 weeks

22. Chemistry

Hello, Sorry to bother you all, but i have a quick question. If I needed to use heat in a reaction, for example, Ca(OH)2(s) + 2NH4Cl(s) = 2H2O(g) + 2NH3(g) + CaCl2(s) Do I need to put "+heat" on the reactant side when writing my equation? Thanks in

23. Math

If area of a square inscribed in a semi circle is 2 square centimeter. Fine the are of the square inscribed in a full circle

24. Algebra

The sum of n tearm of two arithmetic progressions are in the ratio (7n+1):(4n+27).Find the ratio of their 11th terms

25. Physics

A bullet of mass 20gm penetrates a board of thickness 10cm and mass 1kg at rest. If the board is free to move,find the thickness to which the bullet will penetrate. I used conservation of momentum to find the combined velocity of bullet and the board in

26. science

What is the unit for measuring enzyme activity? What is turnover number

27. integral calculus

integral of (dx/(coth^2(2x)*sinh^2(2x)) help, thanksss

28. algerbra

A driver who drives at a speed of r mph for t hr will travel a distance d mi given by dequal d=rt mi. How far will a driver travel at a speed of 61 mph for 66 ​hr? The distance travelled is ............ miles.

29. science

write balanced equation showing the reaction occurs when lead is added to a solution containing a mixture of aqueous silver nitrate and copper(ii)sulfate

30. English

Though not as useful as the mind, And always cancelled by strength in kind, Enough can still break any bind, Just use it... You'll get what you want to find.

31. Chemistry

Iron+CON Hydrochloric acid =?

32. yes

Area of 4 walls of a room is 108 sq meter. If height and length of room is in ratio 2:5 and height and breadth is in the ratio 4:5. Find the are of the floor of the room

33. Surds

Write (2+3^1/2)^1/2 in the form root a plus root b ..and find a and b

34. Chemistry

Hello, Which one is correct? 1) NaOH(aq) + HNO3(aq) ⇋ NaNO3(aq) + H2O(l) or 2) NaNO3(s) + H2O(l) ⇋ NaOH(aq) + HNO3(aq) Thanks!!

35. science

Explain how end product inhibition can control enzyme activity in living cells