The Smith family went to dinner at a restaurant and had a total bill of $120. If they left a tip of $21.60, what percent of the total bill did they leave?

Answer:

Its d!

Step-by-step explanation:The answer is D:)

Answer:

50

Step-by-step explanation:

Answer:

[(15)(15) + 3] = 225

Step-by-step explanation:

Answer : Marla Will Be Done School At 12:48 Pm.

Explanation : 8:48 Am. + 4 Hours = 12:48 Pm.

Answer:

1 and 4/15

Step-by-step explanation:

Answer:

1 4/15

Step-by-step explanation:

simple subtracting

Answer:

$269.49

Step-by-step explanation:

Discount = Original Price x Discount %/100

Discount = 349.99 × 23/100

Discount = 349.99 x 0.23

You save = $80.50

Final Price = Original Price - Discount

Final Price = 349.99 - 80.4977

Final Price = $269.49

Use this formula: Speed = Distance/Time

Given in the question:

Distance - 20 miles

Time - 50 minutes

Calculations

Speed = Distance/Time

Speed = 20/50

Speed = 0.4 miles/min

Therefore, the ship travels 0.4 miles per minute.

Answer:

b

Step-by-step explanation:

brianlesyt

Answer:

4/11

Step-by-step explanation:

The word "MISSISSIPPI" has 11 letters in it and has 4 "S". So, the probability of you picking a S out of a paper bag would be 4/11.

Hope this Helps! :)

Have any questions? Ask below in the comments and I will try my best to answer.

-SGO

Answer:

The 3 positive integers of which the sum is equal to their product are, 1 , 2 and 3

1 + 2 + 3 = 6

So, when we add 1, 2 , and 3, we get six, now let's see on multiplying them,

1 * 2 * 3 = 6

Hence, the positive integers that have the same sum as their product are,

1 , 2 , and 3

Thanks!!

[tex]q(x) = {x}^{2} + 3x + 4 [/tex]

_________________________________

Step(1)

To find q(a) we just need to put a instead of x in q(x) function.

Let's do it...

[tex]q(a) = {a}^{2} + 3a + 4 [/tex]

Multiply sides by -2 :

[tex] - 2q(a) = - 2( {a}^{2} + 3a + 4) [/tex]

[tex] - 2q(a) = - 2 {a}^{2} - 6a - 8 [/tex]

_________________________________

Step (2)

To find q(a+1) we just need to put a+1 instead of x in q(x) function.

Let's do it...

[tex]q(a + 1) = ({a + 1})^{2} + 3(a + 1) + 4 \\ [/tex]

[tex]q(a + 1) = {a}^{2} + 2a + 1 + 3a + 3 + 4 \\ [/tex]

[tex]q(a + 1) = {a}^{2} + 5a + 8 [/tex]

_________________________________

Step (3)

[tex]q(a + 1) - 2q(a) = [/tex]

[tex] {a}^{2} + 5a + 8 - 2 {a}^{2} - 6a - 8 = \\ [/tex]

[tex] - {a}^{2} - a = - a(a + 1)[/tex]

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

The expression for q(a+1) - 2q(a) is -a² - a

Given the expression q(x) = x²+3x+4​

First, we need to get the function q(a+1)

q(a+1) =  (a+1)²+3(a+1)+4​

Expand

q(a+1) = a² + 2a + 1 + 3a + 3 + 4

q(a+1) = a² + 5a + 8

For the function q(a)

q(a) = a²+3a+4​

2q(a) = 2(a²+3a+4​)

2q(a)= 2a² + 6a + 8

Taking the difference:

q(a+1) - 2q(a) = a² + 5a + 8 - ( 2a² + 6a + 8)

q(a+1) - 2q(a)  = a² + 5a + 8 -  2a² - 6a - 8

q(a+1) - 2q(a)  = -a² - a

Hence the expression for q(a+1) - 2q(a) is -a² - a

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Answer:

3

Step-by-step explanation:

Let the number of people be n.

39.75n + 5.75 ≤ 140

39.75n ≤ 134.25

n ≤ 3.37

The greatest integer less than or equal to 3.37 is 3.

Answer: 3

The maximum number of people who can go to the amusement park will be 3.

It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.

It is given that the group has $140 to spend on parking and admission. Parking is $5.75, and tickets cost $39.75 per person, including tax.

For the inequality, we have to apply the arithmetic operation in which we do the multiplication of x and apply the inequality for the given data.

Suppose the number of people will be n.

39.75n + 5.75 ≤ 140

39.75n ≤ 134.25

n ≤ 3.37

The greatest integer value should be less than or equal to 3.37 is 3.

Thus, the maximum number of people who can go to the amusement park will be 3.

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Answer:

x = 17

Step-by-step explanation:

The dash on each side means that all side lengths are equal in length.

Therefore, the shape shown is a regular polygon (hexagon).

Exterior angle of a regular polygon = 360 ÷ number of sides

⇒ Exterior angle of a regular hexagon = 360 ÷ 60 = 60°

Therefore,

4x - 8 = 60

Add 8 to both sides:

⇒ 4x = 68

Divide both sides by 4:

⇒ x = 17

Answer:

2hrs 30 mins

Step-by-step explanation:

if the buoy Is 12 up and 16 right than you can use Pythagorean theorem

a²+b²=c²

144+256=c²

400=c²

√400=√c²

20=c

20/8=2.5

2 hrs 30 mins

Answer:

Step-by-step explanation:

Answer:

168 minutes

Step-by-step explanation:

50% is equal to .5 which is half. So if 84 minutes is half her weekly limit then she double that number to find her weekly limit, which is 168 minutes.

Answer:

50 mph

Step-by-step explanation:

r = d/t

r = 150/3 = 50

Answer:

1 hour = 50 Miles therefore 3 hours × 50 miles = 150 miles×per hour.

Answer:

.79x(.06x20)=.948

round up to .95

Compounding is a process where the interest is credited to the initial amount and interest, on the whole, is charged again. The price of the loaf of bread after 20 years will be 2.53.

Compounding is a process where the interest is credited to the initial amount and interest, on the whole, is charged again. And this continues for t period of time.

It is given by the formula,

A = P(1+r)ⁿ

where A is the value after n period of time, P is the initial amount, and,

r is the rate of increment or decrement.

Given that a loaf of bread costs Rs.0.79 today, and its price increases by 6% per year. Therefore, the price of bread will increase every year by 6% of the previous year's cost. Thus, it can be concluded that the price increases compounding.

Therefore, the equivalent loaf cost in 20 years will be,

Cost of the loaf after 20 years = 0.79(1+0.06)²⁰

                                                   = 0.79(3.2071)

                                                   = 2.53

Hence, the price of the loaf of bread after 20 years will be 2.53.

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Step-by-step explanation:

The first sentence makes the most sense since they used quotations to state what was mentioned in the text, and the punctuations/commas/point are placed correctly.

Step-by-step explanation:

2 weeks = 14 days.

on 11 days of these 14 he had fever.

that means on 14-11 = 3 days he did not have a fever.

on 9 of these 11 fever days he had the fever in the evening.

and we know, when he had fever in the evening, he had no fever in the morning.

so, the number of days without fever in the morning is :

9 + 3 = 12

as he had no fever in the morning when he had a fever in the evening, AND when he did not have any fever at all ...

Hello.

-8.46 is less than 5.31, because it is negative.

Answer:

-8.46 is less than 5.31

Step-by-step explanation:

-8.46 is a negative number, which is smaller than the positive number 5.31

Positive numbers are always greater than negative numbers.

Answer: 0

Step-by-step explanation:

w ≥ 652.5

On 652.5, plot a closed point to the right.

Answer:

w ≥ 652.5- (B, the second choice)

Step-by-step explanation:

To graph, you would put a closed dot on 652.5

:) Hope this helped

Have a wonderful day

I know math isn't always easy, but you will get through this!

Answer:

The answer would be that there are more bananas than pears

Step-by-step explanation:

Well, if we were to put the fractions into decimal form 1/8 would be .125 and if we put 1/2 into decimal it would be 0.5 or in this case .500

And since .500>.125 that shows that there are more bananas than pears in the bag, and the other 3/8 are peaches.

24

Find the square root of 9240 = √9240 = 96.125... now, take the whole number in the square root of 9240 which is 96 and now square this number so, 96² = 9216. Take the 9216 and subtract it from 9240 which is 24.

Answer:

30-60-90shortest leg is always x ; longest leg is always x√3 ; hypotenuse is always 2xhypotenuse = 28 inches = 2x = 2(14)shortest leg = x = 14longest leg = x√3 = 14√3The exact length and width of the tv would be 14 inches and 14√3 inches.

Step-by-step explanation:

mark me brainliest!!

Answer: A

Step-by-step explanation:

Let the length side of the TV = a

The width of the TV = b

The diagonal of a TV = c

In a 30-60-90 right triangle,

We have cos(30°) = [tex]\frac{\sqrt{3}}{2}[/tex] and sin(30°) = [tex]\frac{1}{2}[/tex]

Given that c = 28 inches:

sin(30°) = [tex]\frac{b}{c}[/tex]

[tex]\frac{1}{2} = \frac{b}{c}[/tex]

[tex]b = \frac{1}{2} \times 28 = 14[/tex]

That is, the width of the TV = 14 inches

cos(30°) = [tex]\frac{a}{c}[/tex]

[tex]\frac{\sqrt{3}}{2} = \frac{a}{c}[/tex]

[tex]a = \frac{\sqrt{3}}{2} \times 28 = 14\sqrt{3}[/tex]

That is, the length of the TV = 14√3 inches

So the exact width and length of the TV are 14 inches and 14√3 inches.

Therefore, option A is the correct answer

Answer:

A = 9 sq inches

Step-by-step explanation:

Area of a square:

A = l × w OR s^2

A = 3 × 3 = 3^2

A = 9 sq inches

The amount he invested in the account that yields 4.5% interest is $7,500.

The amount he invested in the account that yields 2.5% interest is $12,500.

a + b = $20,000 equation 1

0.045a + 0.025b = $750 equation 2

Where:

a = amount he invested in the account that yields 4.5% interest

b = amount he invested in the account that yields 2.5% interest

Multiply equation 1 by 0.025

0.025a + 0.025b = 500 equation 3

Subtract equation 3 from 2

250 = 0.02a

a = 12,500

Subtract 12,500 from 20,000

20,000 - 12,500 = $7,500

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