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2 years ago

A restaurant customer left $1.80 as a tip. The tax was 8% and the tip was 20% of the cost including tax.

Mathematics

1 answer:

PtichkaEL [24]2 years ago

8 0

Answer:The bill before tax was $8.33

Step-by-step explanation: Divide tip by portion of bill:

1.80/0.20 = 9.00

The total bill before the tip was $9.00

Divide total bill by 1+ sales tax rate:

9.00 / 1.08 = 8.33

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Divide. 8.64÷(−0.27) Enter your answer in the box.

Ne4ueva [31]

The answer is -2.3328

7 0

3 years ago

Help me please answer thanks

nasty-shy [4]

Answer:

8, 2

Step-by-step explanation:

8 * 2 = 16

8 + 2 = 10

6 0

2 years ago

Q(a+1) - 2q(a) if q(x) = x²+3x+4

siniylev [52]

$q(x) = {x}^{2} + 3x + 4$

_________________________________

Step(1)

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

Let's do it...

$q(a) = {a}^{2} + 3a + 4$

Multiply sides by -2 :

$- 2q(a) = - 2( {a}^{2} + 3a + 4)$

$- 2q(a) = - 2 {a}^{2} - 6a - 8$

_________________________________

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...

$q(a + 1) = ({a + 1})^{2} + 3(a + 1) + 4 \\$

$q(a + 1) = {a}^{2} + 2a + 1 + 3a + 3 + 4 \\$

$q(a + 1) = {a}^{2} + 5a + 8$

_________________________________

Step (3)

$q(a + 1) - 2q(a) =$

${a}^{2} + 5a + 8 - 2 {a}^{2} - 6a - 8 = \\$

$- {a}^{2} - a = - a(a + 1)$

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

8 0

3 years ago

What are the mean and the mode of the following sets of data 5 12 1 5 7

Alik [6]

To find the mean (average), u add up all ur numbers, then divide by how many numbers there are.
mean = (5 + 12 + 1 + 5 + 7) / 5 = 30/5 = 6

To find the mode (and there does not have to be one)...u find the number that is used the most. That number would be 5...because it is used twice, whereas, the other numbers are just used once.

6 0

2 years ago

Read 2 more answers

What is the coefficient of the term of degree 8 in the polynomial below?

Nesterboy [21]

The correct answer is: [D]: "5 (five)" .
______________________________________________________
Note: The term of "degree 8" is the term with a variable with
an exponent of "8" ; which in this case is " + 5x⁸ ".

The "coefficient" is "5" (five).
______________________________________________________

5 0

2 years ago

A restaurant customer left ​$1.80 as a tip. The tax was 8% and the tip was ​20% of the cost including tax.

A restaurant customer left $1.80 as a tip. The tax was 8% and the tip was 20% of the cost including tax.