All categories

2 years ago

20% tip if the bill is 48.25

Mathematics

1 answer:

baherus [9]2 years ago

4 0

20% of 48.25
(20/100) * 48.25
(1/5) * 48.25
9.65

tip is 9.65

You might be interested in

Revenue

denis23 [38]

Answer:

Step-by-step explanation:

Given that a small business assumes that the demand function for one of its new products can be modeled by

$p=ce^{kx}$

Substitute the given values for p and x to get two equations in c and k

$40 = ce^{1200k} \\45 = ce^{1000k}$

Dividing on by other we get

$\frac{45}{40} =e^{-200k} \\-200 k = ln (45/40) = 0.117583\\k = -0.000589$

Substitute value of k in any one equation

$45 = ce^{-0.589} \\c=45.02651$

b) Revenue of the product is demand and price

i.e. R(x) = p*x = $45.02651xe^{-0.000589x}$

Use Calculus derivative test to find max Revenue

R'(x) = $45.02651 e^{-0.000589x}-45.02651*0.000589 x e^{-0.000589x}\\$

EquateI derivative to 0

1-0.000589x =0

x = 1698.037

When x = 1698 and p = 16.56469

7 0

2 years ago

Bob says that when he multiplies (x+3) (x-3) he gets x^2-6x-9 is he correct explain

almond37 [142]

(x+3)(x-3)
x*x=x^2
x*-3=-3x
3*x=3x
3*-3=-9

where’s where he most likely messed up
x^2-3x+3x-9

the correct answer is x^-9

5 0

2 years ago

Looking for gf pls need

SSSSS [86.1K]

Answer:

This is not a dating app.

4 0

2 years ago

Read 2 more answers

What is the answer to 8ab-2b+ab-b

lora16 [44]

8ab-2b+ab-b
8ab+ ab= 9ab
-2b-b= -3b

Answer: 9ab - 3b

4 0

3 years ago

Read 2 more answers

The equation -3(1+x) = -3x + 1 has no solutions. Show algebraically why this is true, and explain your reason

KiRa [710]

−3(1+x)=−3x+1
Step 1: Simplify both sides of the equation.
−3(1+x)=−3x+1
(−3)(1)+(-3)(X)=-3x+1
(Distribute)
−3+ −3x=−3x+1
−3x−3=−3x+1
Step 2: Add 3x to both sides.
−3x−3+3x=-3x+1+3x
−3=1
Step 3: Add 3 to both sides.
−3+3=1+3
0=4
Answer:
There are no solutions.

5 0

2 years ago

Read 2 more answers