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Vlada [557]
3 years ago
9

What is 5 1/8 + 8 7/9 in a fraction? (I just learned this in class)

Mathematics
2 answers:
hammer [34]3 years ago
4 0
13 65/72 aaaannnnnsssswweeeerrrrrrr | answer
Mekhanik [1.2K]3 years ago
4 0
Hi ! , first of all we have to find the common denominator, which is basically a number that 9 and 8 have in common , in this case the common denominator is 72 . I personally prefer to change the mixed fractions , so if you don't change them it's fine , but it is easier if you do. We multiply 8 by 5 which is 40 them were add one to 40 , so our improper fraction is 41/1 , we do the same thing to the other one . Now that we have the improper fractions and the common denominator, we multiply the whole fraction by the number that times the denominator gives us 72.
5 1/8= 41/8
8 7/9= 79/9

41/8 times 9 = 369/72
79/9 times 8= 632/72
After that we add the fractions , 369/72+632/72
Our final answer is 1001/72
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I need help hdbcjsjfnfnfjfjffdbbfdncndnc
lbvjy [14]
\frac{3}{15k+30} : \frac{6k}{5k^2+30k+40} = \frac{3}{15(k+2)} . \frac{5(k+2)(k+4)}{6k} = \frac{k+4}{6k}
8 0
3 years ago
What is C. PLEASE HELP ME IM SO CONFUSED!!!
vichka [17]
100-28-48-8= 16%


Hope it helped
5 0
3 years ago
Given the functionf(x)=0.5(3)^x, what is value of f-1(7)
gogolik [260]
Ok, a fun hack

if f⁻¹(a)=b then f(b)=a

so if f⁻¹(7)=b then f(b)=7

to find b, find x such that f(x)=7


7=0.5(3)^x
times both sides by 2 (or divide both sides by 0.5)
14=3^x
take log₃ of both sides
log_3(14)=x

f^{-1}(7)=log_3(13)
4 0
3 years ago
If we deposit $2,200 in an account that pays 4% per year, find the amount of simple
RUDIKE [14]

Step-by-step explanation:

Principal(P) =$2200

Rate(R) =4%

Time(T)=2 yrs

Simple Interest=PTR/100

I=2200*4*2/100

=$176

5 0
3 years ago
Cho tập số tự nhiên từ 1 đến 20, lấy ngẫu nhiên ba số. Xác suất để ba số lấy được lập thành cấp số cộng là
pogonyaev
I know right? Hope you have
7 0
3 years ago
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