1)the letter x is two times the product two Hope fully this is hopeful and you can do the same on the rest by just changing the number
Answer:
Brad drank 1/8 bottle more water.
Step-by-step explanation:
now, we're assuming they're directly proportional, so say y = miles, x = hours.
![\bf \qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby \begin{array}{llll} k=constant\ of\\ \qquad variation \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \textit{we know that } \begin{cases} y=\frac{4}{5}\\[0.8em] x=\frac{1}{8} \end{cases}\implies \cfrac{4}{5}=k\cfrac{1}{8}\implies \cfrac{4}{5}=\cfrac{k}{8} \\\\\\ \cfrac{8\cdot 4}{5}=k\implies \cfrac{32}{5}=k\implies 6\frac{2}{5}=k](https://tex.z-dn.net/?f=%5Cbf%20%5Cqquad%20%5Cqquad%20%5Ctextit%7Bdirect%20proportional%20variation%7D%20%5C%5C%5C%5C%20%5Ctextit%7B%5Cunderline%7By%7D%20varies%20directly%20with%20%5Cunderline%7Bx%7D%7D%5Cqquad%20%5Cqquad%20y%3Dkx%5Cimpliedby%20%5Cbegin%7Barray%7D%7Bllll%7D%20k%3Dconstant%5C%20of%5C%5C%20%5Cqquad%20variation%20%5Cend%7Barray%7D%20%5C%5C%5C%5C%5B-0.35em%5D%20%5Crule%7B34em%7D%7B0.25pt%7D%5C%5C%5C%5C%20%5Ctextit%7Bwe%20know%20that%20%7D%20%5Cbegin%7Bcases%7D%20y%3D%5Cfrac%7B4%7D%7B5%7D%5C%5C%5B0.8em%5D%20x%3D%5Cfrac%7B1%7D%7B8%7D%20%5Cend%7Bcases%7D%5Cimplies%20%5Ccfrac%7B4%7D%7B5%7D%3Dk%5Ccfrac%7B1%7D%7B8%7D%5Cimplies%20%5Ccfrac%7B4%7D%7B5%7D%3D%5Ccfrac%7Bk%7D%7B8%7D%20%5C%5C%5C%5C%5C%5C%20%5Ccfrac%7B8%5Ccdot%204%7D%7B5%7D%3Dk%5Cimplies%20%5Ccfrac%7B32%7D%7B5%7D%3Dk%5Cimplies%206%5Cfrac%7B2%7D%7B5%7D%3Dk)
Answer:
Hi there!
The correct answer to this question is: 97/15
Step-by-step explanation:
First step is to change all the mixed fractions into improper fraction.
9 8/9 becomes 99/9 and 4 8/15 becomes 68/15
then you divide 99/9 you get 11. then you multiply 11 with 15 to get a common denominator. so now the equation is 165/15 - 68/15 which equals 97/15
Answer:
Step-by-step explanation:
y ∞ x/m
y = kx/m
Where k is the constant of proportionality
A. k = ym/x
y=5 when x=7 and m=4
k = (5×4)/7
k = 20/7
y = 20x/7m
B)the value of when x=2and m=2
y = 20x/7m
y = (20×2)/(7×2)
y = 40/14
y = 20/7
y = 2 6/7
C. The value of m when y=2 and x=4
y = 20x/7m
7ym = 20x
m = 20x/7y
m = (20×4)/(7×2)
m = 80/14
m = 40/7
m = 5 5/7
