Ask question

Ask question

All categories

2 years ago

10

Kim and Sam went to Mexico Restaurant for lunch. The total bill was $21.58. They decide to leave an 18% tip. How much will the t

ip be? How much total will they spend on lunch?

1 answer:

GrogVix [38]2 years ago

7 0

Answer:

$3.88

Step-by-step explanation:

You want to leave a 18% tip on a meal that cost $21.58.

First, convert the 18% to an actual number that can be used in a calculation. For percents,this is always done by simply dividing the percent (in this case 18%) by 100%.So, the conversational term "18%" becomes 18% / 100% = 0.18 in terms of a real mathematical number.

Second, you need to find out what 18% of your $21.58 meal cost is.This is always done by multiplying 0.18 by $21.58, or 0.18 x $21.58=$3.88.

So, the amount of tip you are going to leave is $3.88.

You might be interested in

Suppose that 5 J of work is needed to stretch a spring from its natural length of 36 cm to a length of 51 cm. (a) How much work

olganol [36]

Answer:

a) 0.6 joules of work are needed to stretch the spring from 41 centimeters to 46 centimeters.

b) The spring must be 5.6 centimeters far from its natural length.

Step-by-step explanation:

a) The work done to stretch the ideal spring from its natural length is defined by the following definition:

$W = \frac{1}{2}\cdot k\cdot (x_{f}-x_{o})^{2}$ (1)

Where:

$k$ - Spring constant, measured in newtons.

$x_{o}$ , $x_{f}$ - Initial and final lengths of the spring, measured in meters.

$W$ - Work, measured in joules.

The spring constant is: ( $W = 5\,J$ , $x_{o} = 0.36\,m$ , $x_{f} = 0.51\,m$ )

$k = \frac{2\cdot W}{(x_{f}-x_{o})^{2}}$

$k = \frac{2\cdot (5\,J)}{(0.51\,m-0.36\,m)^{2}}$

$k = 444.44\,\frac{N}{m}$

If we know that $k = 444.44\,\frac{N}{m}$ , $x_{o} = 0.41\,m$ and $x_{f} = 0.46\,m$ , then the work needed is:

$W = \frac{1}{2}\cdot \left(444.44\,\frac{N}{m} \right)\cdot (0.46\,m-0.41\,m)^{2}$

$W = 0.555\,J$

0.6 joules of work are needed to stretch the spring from 41 centimeters to 46 centimeters.

b) The elastic force of the ideal spring ( $F$ ), measured in newtons, is defined by the following formula:

$F = k\cdot \Delta x$ (2)

Where $\Delta x$ is the linear difference from natural length, measured in meters.

If we know that $k = 444.44\,\frac{N}{m}$ and $F = 25\,N$ , then the linear difference is:

$\Delta x = \frac{F}{k}$

$\Delta x = \frac{25\,N}{444.44\,\frac{N}{m} }$

$\Delta x = 0.056\,m$

The spring must be 5.6 centimeters far from its natural length.

3 0

3 years ago

Find the height of a right cylinder with surface area 160pie square units and radius 5 units

jenyasd209 [6]

Given:

Radius of a cylinder = 5 units.

Surface area of the cylinder = $160\pi$

To find:

The height of the right cylinder.

Solution:

Surface area of a cylinder is:

$A=2\pi rh+2\pi r^2$

Where, r is radius and h is the height of the cylinder.

Putting $r=5, A=160\pi$ in the above formula, we get

$160\pi =2\pi (5)(h)+2\pi (5)^2$

$160\pi =10\pi h+2\pi (25)$

$160\pi =10\pi h+50\pi$

Subtract $50\pi$ from both sides.

$160\pi -50\pi=10\pi h$

$110\pi=10\pi h$

Divide both sides by $10\pi$ .

$\dfrac{110\pi}{10\pi}=h$

$11=h$

Therefore, the height of the cylinder is 11 units.

8 0

2 years ago

Kelly spends $75.98 on items for a party. She buys thank you cards that cost $3.18 (including tax). She also buys gift bags that

vladimir2022 [97]

B. 7 because if you do $75.98/$10.40=7

6 0

3 years ago

100 POINTS WILL GIVE BRAINLIEST TO RIGHT ANSWER

nydimaria [60]

Answer:

r is a straight line

completing or enhancing something.

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

ASAP<br><br> What is the value of x?

Savatey [412]

3x-52=2x+2 (v.o.a)
3x-2x=2+52
x=54

6 0

3 years ago