Can you help me with this question? 15 points and brainliest if right!!
2 answers:
You might be interested in
Answer:
The cost of each chicken sandwich is <u>$2.19</u> and the cost of each small orders of fries is <u>$1.15</u>.
Step-by-step explanation:
Given:
The cost of three chicken sandwiches and two small orders of fries is $8.87. And the cost of five chicken sandwiches and four small orders of fries is $15.55.
Now, to find the cost of each chicken sandwiches and each small orders of fries.
<u><em>Let the cost of each chicken sandwich be </em></u><u><em /></u>
<u><em>And let the cost of each small orders of fries be </em></u><u><em /></u>
So, the total cost of three chicken sandwiches and two small orders of fries:
......(1)
Now, the total cost of five chicken sandwiches and four small orders of fries:
.......(2)
Now, to solve the equations by using elimination method:
....(1)
.....(2)
So, multiplying equation (1) by 2 we get:
And, then subtracting equation (2) from the resulting equation (1):
<u>The cost of each chicken sandwich = $2.19.</u>
Now, substituting the value of in equation (1):
<em /><em />
<em>Subtracting both sides by 6.57 we get:</em>
<em /><em />
<em>Dividing both sides by 2.3 we get:</em>
<u>The cost of each small orders of fries = $1.15.</u>
Therefore, the cost of each chicken sandwich is $2.19 and the cost of each small orders of fries is $1.15.
Answer:
There is not root of the function on the interval [0, 1].
Step-by-step explanation:
The Intermediate Value Theorem says:
<em>If f(x) is a continuous function on [a, b], then for every d between f(a) and f(b), there exists a value c in between a and b such that f(c) = d.</em>
This means that whenever we can show that:
- there is a point above some line
- and a point below that line, and
- that the curve is continuous,
we can then safely say yes, there is a value somewhere in between that is on the line.
To show that there is solution between x = 0 and x = 1.
We evaluate the function at x = 0 and x = 1
We know that
at x = 0, the line is above zero and
at x = 1 the line is above zero.
We also know that the function is continuous but because the line is always above zero there is no solution at the interval (0, 1).
We can check our work with the graph of the function.
