No. For instance, let’s look at 1)
It’s asking you to find what x is when x/10 = 6

So, consider the equation x/10=6
Multiply both sides by 10, and your answer is 60.
Now do this for each one.

7 0

3 years ago

Plzz help me to solve this qns please

tatiyna

9514 1404 393

Answer:

₹14000

Step-by-step explanation:

Let c represent the cost price, and m represent the marked price.

c × (1 +40%) = m

m × (1 -15%) - c = ₹1900

Using the first expression for m, the second equation becomes ...

1.40c×0.85 -c = ₹1900

0.19c = ₹1900

c = ₹1900/0.19 = ₹10000

Then the marked price was ...

m = 1.40c = 1.40×₹10000 = ₹14000

The marked price was ₹14000.

_____

The selling price was ₹11900.

7 0

3 years ago

At what values of x does f(x) = x^3 - 2x^2 -4x+1 satisfy the mean value theorwm on [0,1]

denis-greek [22]

Answer:

x=1/3

Step-by-step explanation:

A function f is given as

$f(x) = x^3-2x^2-4x+1$ in the interval [0,1]

This function f being an algebraic polynomial is continuous in the interval [0,1] and also f is differntiable in the open interval (0,1)

Hence mean value theorem applies for f in the given interval

$f(1) = 1-2-4+1 = -4\\f(0) = 1$

The value

$\frac{f(1)-f(0)}{1-0} =\frac{-4-1}{1} =-5$

Find derivative for f

$f'(x) = 3x^2-4x-4$

Equate this to -5 to check mean value theorem

$3x^2-4x-4=-5\\3x^2-4x+1=0\\\\(x-1)(3x-1) =0\\x= 1/3 : x = 1$

We find that 1/3 lies inside the interval (0,1)

4 0

3 years ago

The cost table shows the average cost, a(x), of producing x number of earbuds.

Tasya [4]

Answer:

Step-by-step explanation:

7 0

3 years ago