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babymother [125]
3 years ago
14

What was the price of Andrea's tacos before the tip

Mathematics
1 answer:
bonufazy [111]3 years ago
8 0

Answer:

You forgot to give us an image, please go do that

Step-by-step explanation:

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The sum of the measures of the interior angles of a polygon with n sides is __.
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Answer: The sum of the measures of the interior angles of a polygon is always 180(n-2) degrees, where n represents the number of sides of the polygon. The sum of the measures of the exterior angles of a polygon is always 360

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What is the 15th term of the sequence A(n) = -3n+50 ?
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hjjbvf for niinvolppllpp

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A restaurant uses one-third of their stock of cooking oil in a week. If 20 gallons are left, how
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Step-by-step explanation:

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3 years ago
From a box containing 10 cards numbered 1 to 10, four cards are drawn together. The probability that their sum is even is 21 21
ankoles [38]

Answer:

Step-by-step explanation:

We know that between 1 to 10 there are 5 even and 5 odd numbers.

We could get 4 even cards , 4 odd cards or 2 odd and 2 even cards

Let´s check all this combinations

Case 1: When all 4 numbers are even:  

We are going to take 4 of the 5 even numbers in the box so we have

5C4=5

Case 2: When all 4 numbers are odd:  

We are going to take 4 of the 5 odd numbers in the box, so we have

5C4=5

Case 3: When 2 are even and 2 are odd:

We are giong to take 2 from 5 even and odd cards in the box so we have

 

5C2 * 5C2

Remember that we obtain the probability from

\frac{Number-of-favourable-Outcome}{Total-number-of-outcomes}

So we have the number of favourable outcomes but we need the Total cases for drawing four cards, so we have that:  

We are taking 4 of the 10 cards:

10C_4=210

Hence we have that the probability that their sum is even

\frac{5+5+100}{210}=\frac{11}{21}

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3 years ago
According to the scale on a road map, 3 cm represents 45 kilometers. if two cities measure 10 cm apart on the map, how many kilo
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150 Km.

Good luck! :)

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3 years ago
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