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erastova [34]
3 years ago
13

Suppose your restaurant bill comes to $28.35 .Find your total cost if the tax is 6.25% and you leave a 20% tip on the amount bef

ore tax.
Mathematics
1 answer:
Anon25 [30]3 years ago
3 0
Your total after tax is $30.12
A 20% tip is approximately $5.50 ($5.67)
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Solve by completing the square. Round your answers to the nearest tenth and then locate the greater solution. <img src="https://
Andrews [41]

Step-by-step explanation:

Step 1: Write our Givens

{x}^{2}  + 10x - 7 = 0

Move the constant term ,(the term with no variable) to the right side.

Here we have a negative 7, so we add 7 to both sides

{x}^{2}  + 10x = 7

Next, we take the linear coeffeicent and divide it by 2 then square it.

( \frac{10}{2} ) {}^{2}  = 25

Then we add that to both sides

{x}^{2}  + 10x + 25 = 7 + 25

{ {x}^{2} } + 10x + 25 = 32

Next, we factor the left,

(x + 5)(x + 5) = 32

we got 5 because 5 add to 10 and multiply to 25 as well.

so we get

(x + 5) {}^{2}  = 32

This is called a perfect square trinomial.

Next, we take the square root of both sides

x + 5 = ± \sqrt{32}

± menas that we have a positive and negative solution.

Subtract 5 form both side so we get

x =  - 5± \sqrt{32}

The greater solution is when sqr root of 32 is positive so the answer to that is

\sqrt{32}  - 5 = 0.7

3 0
2 years ago
Henry's mom is in charge of buying lemonade for his soccer team this week she plans on every player receiving 7/8 of a cup of le
Katena32 [7]
If each player will receive 7/8 of a cup, and there are a total of 20 cups of lemonade, then the number of servings that can be made is equal to:

20 cups divided by (7/8 cup per player)
20 / (7/8) = 20 * (8/7) = 160/7 = 22 and 6/7 (round down since we're looking for complete servings)
This means that 22 complete servings can be made.
5 0
3 years ago
What is the solution of 10=|7-3x|
Tom [10]

10=|7-3x| \\ 7-3x=10 \vee 7-3x=-10\\ 3x=-3 \vee 3x=17\\ x=-1 \vee x=\dfrac{17}{3}

5 0
2 years ago
Class 324 went apple picking and collected 64
garri49 [273]

Answer:

8 bags of apples

Step-by-step explanation:

first you do 64 apples divided by 8 bags

then you would get the answer of 8 bags of apples given to 8 different teachers

4 0
3 years ago
TJ, Max, and Misha are all the same age. The sum of their age is S years. how old was TJ 8 years ago?
yuradex [85]

Answer:

s-8

Step-by-step explanation:

ezyyyy

3 0
2 years ago
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