Answer:
17.5
Step-by-step explanation:
The ratio of "pure drug" to liquid is 35:150
Therefore to evaluate for 75 mls we get the ratio 75/2150 or simply 1/2
multiply 35 by the ratio 1/2
35/2=17.5
![\bf \begin{array}{cccccclllll} \textit{something}&&\textit{varies directly to}&&\textit{something else}\\ \quad \\ \textit{something}&=&{{ \textit{some value}}}&\cdot &\textit{something else}\\ \quad \\ y&=&{{ k}}&\cdot&x && y={{ k }}x \end{array} \\ \quad \\ \textit{we know that, when} \begin{cases} y=-3\\ x=5 \end{cases}\implies y=kx\implies (-3)=k(5)](https://tex.z-dn.net/?f=%5Cbf%20%5Cbegin%7Barray%7D%7Bcccccclllll%7D%0A%5Ctextit%7Bsomething%7D%26%26%5Ctextit%7Bvaries%20directly%20to%7D%26%26%5Ctextit%7Bsomething%20else%7D%5C%5C%20%5Cquad%20%5C%5C%0A%5Ctextit%7Bsomething%7D%26%3D%26%7B%7B%20%5Ctextit%7Bsome%20value%7D%7D%7D%26%5Ccdot%20%26%5Ctextit%7Bsomething%20else%7D%5C%5C%20%5Cquad%20%5C%5C%0Ay%26%3D%26%7B%7B%20k%7D%7D%26%5Ccdot%26x%0A%0A%26%26%20%20y%3D%7B%7B%20k%20%7D%7Dx%0A%5Cend%7Barray%7D%0A%5C%5C%20%5Cquad%20%5C%5C%0A%5Ctextit%7Bwe%20know%20that%2C%20when%7D%0A%5Cbegin%7Bcases%7D%0Ay%3D-3%5C%5C%0Ax%3D5%0A%5Cend%7Bcases%7D%5Cimplies%20y%3Dkx%5Cimplies%20%28-3%29%3Dk%285%29)
solve for "k", to find the "constant of variation",
then plug it back in the y = kx, to get the equation
now
what's is y when x = -1?
well, just plug that in the equation with the found "k" value,
to get "y" :)
AC is parallel to MN then triangle ABC and triangle MBN are similar and the ratio of the corresponding sides are equal...
The calculation that is not a way to find a fraction of 5/8 is:
1 - 0.125.
<h3>What is a fraction?</h3>
A fraction is a numerical representation of the division of the two terms x and y, as follows:
Fraction = x/y.
The terms are classified as follows:
- The top term x is the numerator of the fraction.
- The bottom term y is the denominator of the fraction.
Hence the numeric value of the fraction 5/8 presented in this problem is given as follows:
5/8 = 0.625.
The calculation that is not a way to find the fraction of 5/8 is the only expression that has a different value than 5/8.
The expression with a different value is of:
1 - 0.125 = 0.875.
As the value of 0.875 is different than the value of 0.625 equivalent to the fraction of 5/8.
<h3>Missing Information</h3>
The complete problem is given by the image at the end of the answer.
More can be learned about fractions at brainly.com/question/1622425
#SPJ1
Answer: 80 sq. ft
Step-by-step explanation:
Company A’s charges can be represented by the equation: 10m + 250
Company B’s charges can be represented by the equation: 12m + 90
To find when the square feet got which they have the same amount, I will set them equal to each other and solve for it.
10m+250=12m+90
-10m -10m
250=2m+90
-90 -90
160=2m divide both side by 2
80=m
For 80 square feet, both companies charge the same amount.