## anonymous one year ago carol is baking cookies and needs 2 and 1/4 cups of flour, 2/3 cup of white sugar, 1/4 cup of brown suga, and 1/16 cup of baking soda. use this information to answer the following question. - if the amount of white sugar were increased by a factor of 2 and 1/2, in cups, how much sugar would there be? A. 2 and 1/2 B. 2 and 3/5 C. 1 and 2/3 D. 1 and 3/5

1. anonymous

will fan and medal !

2. anonymous

i think all u have to do is add the two fractions together. ( 2/3 + 2 1/2)

3. johnweldon1993

No see I was all confused...this wording sucks

4. johnweldon1993

5. johnweldon1993

But I guess all they want is White sugar sooo $\large \text{Total Sugar} = \text{White Sugar} + \text{Brown Sugar}$ White sugar = 2/3 cup If the white sugar is increased by a factor of 2 1/2 we have multiplication: $\large\text{White sugar} = \frac{2}{3} \times \frac{5}{2} = \frac{10}{6} = 1\frac{2}{3}$

6. johnweldon1993

That top line was my original thinking...the total = white + brown...but just ignore that

7. anonymous

i just copied and pasted it from my work lol i know its confusing theres like 3 more problems and im pellet with fractions

8. johnweldon1993

Well look at what I did and let me know if anything doesn't make sense :)

9. anonymous

all u have to do is add the amount of white sugar it says then add what it tells u to... i dont get why ur multiplying...?

10. johnweldon1993

"increased by a factor of 2 1/2" increasing by a factor means multiplication :)

11. anonymous

i feel dumb lol

12. johnweldon1993

Dont...not at all lol fractions are confusing for many people so dont feel dumb :)

13. anonymous

can u answer another 1 or 2...?

14. johnweldon1993

...perhaps lol

15. anonymous

if the amount of flower were increased by a factor of 2 and 1/2 in cups how much flour would there be..? the original amount of flower is 2 and 1/4

16. johnweldon1993

Okay so same here original = 2 1/4 Increased by a factor of 2 1/2 So $\large \frac{9}{4} \times \frac{5}{2} = ?$

17. anonymous

sorry i had to takemy dog outside

18. anonymous

5 and 5/8 ..?

19. johnweldon1993

Perfect!

20. anonymous

yayy! okay, if only 1/4 the amount of brown sugar were used how much brown sugar would be used ..?

21. johnweldon1993

What is 1/4 of 1/4? $\large \frac{1}{4} \times \frac{1}{4} = ?$

22. anonymous

1/16..?

23. johnweldon1993

correct again :)

24. anonymous

last one lol! if only 1/4 the amount of baking soda in the recipe were used, how much baking soda was used..?

25. johnweldon1993

What is 1/4 of 2 1/4? $\large \frac{1}{4} \times \frac{9}{4} = ?$

26. anonymous

2 and 1/5..?

27. anonymous

wait thats wrong

28. anonymous

9/16 ii added the first time lol

29. johnweldon1993

Lol there ya go :)

30. anonymous

can that be simplified...?

31. johnweldon1993

Well are there any numbers that go into by 9 and 16 evenly?

32. anonymous

cause 9/16 isnt one of my choices lol

33. anonymous

my choices are A. 1/64 B. 1/20 C. 1/16 D. 1/4

34. johnweldon1993

Oh omg I used the flour not the baking soda XDD sorry about that $\large \frac{1}{4} \times \frac{1}{16}$

35. anonymous

its fine lol and sorry my laptop decided to restart its self

36. anonymous

1/64

37. johnweldon1993

there ya go...and no im sorry lol

38. anonymous

haha its fine i messed up to !