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3 years ago

ANSWERRRRR PLEASE!! ~~

Mathematics

2 answers:

olganol [36]3 years ago

8 0

Answer:

.33 liters of water and 3 liters of flour

Step-by-step explanation:

Well you can see how 1 liter of water is 3 liters of flour since there's a point on the graph, and you can find the liters of flour by just doing 1/3

Strike441 [17]3 years ago

3 0

Answer:

1.13

2.67

Step-by-step explanation:

Accordin to the graph we can say Water in liters is y and Flour in liters is x. We can determine the slop of the graph and the y-intercept when x=0. Let m be the slope of the graph and c is the y-intercept. The equation of the line is:

$y=m*x+c$

The slope is define as:

m=(y2-y1)/(x2-x1)

We can determine the slope by using any two points on the line. Lets use point 1 as (1,0.25) and point 2 as (3,1):

$m=(1-0.25)/(3-1)=0.375$

Therefore the equation of the line is:

$y=0.375*x+c$

We see from the graph that the line intercepts through point (0,0) therefore the equation is y=0.375x with a y-intercept of 0.

We can calculate the number of liters of flour per water at any point, let x=3

$y=0.375*(3)=1.125$

We can calculate the number of liters of water per flourat any point, let y=1

$x=1/(0.375)=2.67$

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3 years ago

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Any one that knows this please help thanks!

USPshnik [31]

Your are being asked to find what value of a will result in the denominator being 0, since you can not divide by 0 then this will be your non permissible value. Simply take the denominator(after it has been factored down and reduced, if necessary, it's not in this question though) then set to 0 and solve for the variable.
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4 years ago

What is x and y math help

Readme [11.4K]

<h3>Answer:</h3>

20 cans of cola
10 cans of root beer

<h3>Step-by-step explanation:</h3>

x and y are whatever you want them to be.

It can be convenient for solving a problem like this to use x and y to represent <em>what the problem is asking for</em>: the number of cans of cola and the number of cans of root beer. It is also convenient (less confusing) to use those variable names in the same order that the nouns of the problem are named:

... x = # of cans of cola

... y = # of cans of root beer

Then the problem statement tells you ...

... x + y = 30 . . . . . . . 30 cans total were bought

... x = 2y . . . . . . . . . . the number of cans of cola is twice the number of cans of root beer

_____

This set of equations is nicely solved by substitution: use the second equation to substitute for x in the first.

... (2y) +y = 30 . . . . . put 2y where x was

... 3y = 30 . . . . . . . . collect terms

... y = 10 . . . . . . . . . divide by 3

... 2y = x = 20

<em>You're not done yet. You need to answer the question the problem asks.</em>

Jared bought 20 cans of cola and 10 cans of root beer.

_____

<em>Comment on x and y</em>

You customarily see x and y as the variables of a problem. Personally, I like to use variables that remind me what they stand for. In this problem, I might use "c" for cans of cola and "r" for cans of root beer. Then when I've found the solution, I know exactly how it relates to what the question is asking.

Always start by writing down what the variables stand for (as we did here). Sometimes, this is called <em>writing a Let statement</em>: <u>Let</u> x = number of colas; <u>let</u> y = number of root beers.

<em>Comment on problems of this type</em>

When a proportional relationship is given between the items in a sum (2 cola cans for every root beer can), it is often convenient to work the problem in terms of groups of items. Here, a group of 3 items can consist of 2 cola cans and 1 root beer can. Then 30 items will be 10 groups, so 10 root beers and 20 colas. The problem is solved even before you can name the variables.

Even when the relationship isn't exactly proportional, you can add or subtract the extras and still work the problem this way. Had we said colas numbered 3 more than twice as many root beers, we could have our groups of 3 total 27 (30 less the 3 extra), giving 9 root beers and 21 colas (3 + 2·9).

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3 years ago