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Igoryamba
2 years ago
12

Dinner costs $42. With 18% gratuity, how much will you pay in total?

Mathematics
2 answers:
Elena-2011 [213]2 years ago
6 0

Answer:

49.56

Step-by-step explanation:

42 x .18 = 7.56

7.56+42= 49.56

Vlad [161]2 years ago
3 0

Answer:

$49.56

Step-by-step explanation:

18/100 multiplied by $42 = $7.56

$42 + $7.56 = $49.56

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What fraction has a decimal value between 1/2 and 3/4
andreyandreev [35.5K]
To find the decimal value, we must convert 1/2 and 3/4 into decimal.
1/2=0.5
3/4=0.75
Now we just have choose a random decimal in between the decimal.
Let's choose 0.6
Now we have to convert the decimal into a fraction. So we'll multiply the decimal by100.
0.6×100=60
Then we make the 60 into a fractions. 60/100
Then we'll simply the fraction. 60/100÷10=6/10÷2=3/5
There you go. You have your answer.

7 0
3 years ago
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Find all the real square roots of 0.0064
LenKa [72]
√64 = 8

64÷1000 = 0.0064

8÷1000=0.0008

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5 0
3 years ago
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The sum of two numbers is 9.9, and the sum of the squares of the numbers is 53.21. What are the numbers?
Snezhnost [94]

Answer:

There are two possibilities:

x_{1} = 3.5 and y_{1} = 6.4

x_{2} = 6.4 and y_{2} = 3.5

Step-by-step explanation:

Mathematically speaking, the statement is equivalent to this 2-variable non-linear system:

x + y = 9.9

x^{2} + y^{2} = 53.21

First, x is cleared in the first equation:

x = 9.9 - y

Now, the variable is substituted in the second one:

(9.9-y)^{2} + y^{2} = 53.21

And some algebra is done in order to simplify the expression:

98.01-19.8\cdot y +2\cdot y^{2} = 53.21

2\cdot y^{2} -19.8\cdot y +44.8 = 0

Roots are found by means of the General Equation for Second-Order Polynomials:

y_{1} \approx \frac{32}{5} and y_{2} \approx \frac{7}{2}

There are two different values for x:

y = y_{1}

x_{1} = 9.9-6.4

x_{1} = 3.5

y = y_{2}

x_{2} = 9.9 - 3.5

x_{2} = 6.4

There are two possibilities:

x_{1} = 3.5 and y_{1} = 6.4

x_{2} = 6.4 and y_{2} = 3.5

5 0
3 years ago
In the diagram below, AABC-ADEC. What is the value of x?
Marina86 [1]

Answer:

C

Step-by-step explanation:

Number 4

7 0
2 years ago
Regis has a bag with 8 tiles numbered 1 through 8. He randomly draws one bag without looking. Which of the following describes a
Daniel [21]

He has a likely outcome of 1/8

8 0
2 years ago
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