Answer:
31q+15
Step-by-step explanation:
Sand to cement
7:3
210:x
ask yourself what number is needed to multiply by 7 to get 210 ( so you'd divide 210 by 7 which is 30). Multiply the other side by thirty as well to get the value of x
3*30 which is 90
The linear equation in standard form is:
6x - 7y = -11
Which is the last option.
<h3>
How to get the equation of the line?</h3>
The line in slope-intercept form is written as:
y = a*x + b
We can see that the line passes through the points (-3, -1) and (1/2, 2), then the slope is:
![a = \frac{2 - (-1)}{1/2 - (-3)} = \frac{3}{3.5} = \frac{6}{7}](https://tex.z-dn.net/?f=a%20%3D%20%5Cfrac%7B2%20-%20%28-1%29%7D%7B1%2F2%20-%20%28-3%29%7D%20%20%3D%20%5Cfrac%7B3%7D%7B3.5%7D%20%20%3D%20%5Cfrac%7B6%7D%7B7%7D)
Then we can write:
y = (6/7)*x + b
To find the value of b, we use the first point. It means that when x = -3, the value of y is -1, then we get:
-1 = (6/7)*-3 + b
-1 + 18/7 = b
-7/7 + 18/7 = b
11/7 = b
Then the equation is:
y = (6/7)*x + 11/7
If we multiply both sides by 7 we get:
7y = 6x + 11
Now we move the term with "x" to the left:
7y - 6x = 11
That is the line in standard form.
If we multiply both sides by -1, we get the last option:
6x - 7y = -11
If you want to learn more about linear equations:
brainly.com/question/1884491
#SPJ1
let's think about it, let's divide say hmmm 15 by 0, in a fraction
![\bf \cfrac{\textit{part of a pie}}{\textit{whole pie}}\qquad \cfrac{15}{0}\implies \cfrac{\textit{taking 15 pieces}}{\textit{from a whole pie that's 0, or not there}}](https://tex.z-dn.net/?f=%5Cbf%20%5Ccfrac%7B%5Ctextit%7Bpart%20of%20a%20pie%7D%7D%7B%5Ctextit%7Bwhole%20pie%7D%7D%5Cqquad%20%5Ccfrac%7B15%7D%7B0%7D%5Cimplies%20%5Ccfrac%7B%5Ctextit%7Btaking%2015%20pieces%7D%7D%7B%5Ctextit%7Bfrom%20a%20whole%20pie%20that%27s%200%2C%20or%20not%20there%7D%7D)
now, how can you take any pieces of a pie that's non-existent? I mean that requires magic!!.
now, let's do it using a simple long division, 15 ÷ 0, so 0 is the divisor, anything times 0 is 0, what is our first digit in the quotient to get 15? 0 * 15 = 0, 0 * 1,000,000 = 0, there isn't any number we can possible use to get a quotient.
it can be arranged into 45 new words