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tresset_1 [31]
2 years ago
5

Josea went out to dinner to an Indian restaurant. The total bill was $38 .she wanted to leave a 20% tip

Mathematics
1 answer:
jekas [21]2 years ago
6 0

Answer:

$20?

Step-by-step explanation:

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Consider the following theorem and proof.Theorem: The number âš2 is not rational number.Proof: Let's suppose âš2 is a rational n
ololo11 [35]

Answer:

The statement "Both of the numbers a and b cannot be even." is justified by the fact that a/b is simplified lowest terms

Step-by-step explanation:

We need to  show that the √2 is an irrational number.

And from the given steps of proof stated in the question, we need to find the assumption that justifies the fact : " Both of the number a and b cannot be even".

First take the given options :

Option a : √2 is a rational number

√2 being an rational or irrational has no relation of a and b to be even or odd. So, this option is rejected.

Option B : a/b is simplified lowest terms

This shows that a and b are not even because if a and b are even then a/b can be simplified in other lowest term.

Option c : √2 is a irrational number

Similarly, By using the inverse part of Option A, option c is also rejected.

Option d : The fact that b divides a evenly

This only shows that the a is even. This does not give any idea about b is even or not. So option D is also rejected.

Option E : The fact that a and b are whole numbers

This fact does not imply that the a and b are even or odd. So option E is also rejected.

Hence, The statement "Both of the numbers a and b cannot be even." is justified by the fact that a/b is simplified lowest terms

7 0
3 years ago
X^2+ 6x - 4 = 3x + 6
jolli1 [7]

Answer:

x=2

x=-5

Step-by-step explanation:

You need to get everything on one side to have a quadratic equation:

x^2+6x-4 -(3x+6) = x^2+3x-10

All factors of 10 are 1*10 and 2*5.

5-2 = 3 and 5*-2 = -10

Factoring x^2+3x-10 gives us (x-2)(x+5)

x=2

x=-5

4 0
3 years ago
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How do u divide fractions​
Lelu [443]

Keep, change, flip

Example: 3/4 divided by 6/8

Step 1: keep 3/4

Step two: change the division sign to a multiplication sign

Step 3: flip 6/8 and make it 8/6

Step 4: multiply it, then that’s your answer to the division problem

8 0
3 years ago
A candidate took a phone poll of 114 people and found that 87 said they would vote for the other person.There are 9918 people in
Dima020 [189]
87 / 114 = x / 9918....87 people to 114 = x people to 9918
cross multiply
(114)9x) = (87)(9918)
114x = 862866
x = 862866/114
x = 7569 <=== 
4 0
3 years ago
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What is the value of the function at x = 2?
Grace [21]

check the picture below.

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3 years ago
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