Hallar el perimetro y area de la figura (find the perimeter and area of the figure)

Sara has 20 sweets. She has 12 liquorice sweets, 5 mint sweets and 3 humbugs. Sarah is going to take, at random, two sweets Work

Debora [2.8K]

Answer:

111 / 190

Step-by-step explanation:

Let us first compute the probability of picking 2 of each sweet. Take liquorice as the first example. There are 12 / 20 liquorice now, but after picking 1 there will be 11 / 19 left. Thus the probability of getting two liquorice is demonstrated below;

$12 / 20 * 11 / 19 = \frac{33}{95},\\Probability of Drawing 2 Liquorice = \frac{33}{95}$

Apply this same concept to each of the other sweets;

$5 / 20 * 4 / 19 = \frac{1}{19},\\Probability of Drawing 2 Mint Sweets = 1 / 19\\\\3 / 20 * 2 / 19 = \frac{3}{190},\\Probability of Drawing 2 Humbugs = 3 / 190$

Now add these probabilities together to work out the probability of drawing 2 of the same sweets, and subtract this from 1 to get the probability of not drawing 2 of the same sweets;

$33 / 95 + 1 / 19 + 3 / 190 = \frac{79}{190},\\1 - \frac{79}{190} = \frac{111}{190}\\\\$

The probability that the two sweets will not be the same type of sweet =

111 / 190

3 0

3 years ago

If f(x) = |x| + 9 and g(x) = –6, which describes the value of (f + g)(x)?

tangare [24]

<span>(f+g)(x) ≥ 3 for all values of x</span>

6 0

3 years ago

Read 2 more answers

The figure below represents a top view of Johns patio. What is the value of X?

quester [9]

Answer:

The value of x = 110°

Step-by-step explanation:

=> x° + 90° + 90° + 70° = 360 ° { sum of angles of a quadrilateral is 360 }

=> x + 250° = 360°

=> x = 360 - 250

=> x = 110°

4 0

2 years ago

−2(x − 3) = 2(x + 1)<br><br> who can solve this?

Y_Kistochka [10]

this answer is this right here x=1

5 0

2 years ago

five note cards each contain a different single-digit numbers.The cards are arranged to find the largest possible 5-digit number

Mashutka [201]

Solution: The largest number is 86521, the smallest number is 12568 and the sum of digits is 22.

Explanation:

Let the digits on cards be a, b, c, d and e. where $a>b>c>d>e>0$ because if the smallest digit is 0, then we get a four digit number on rearrangement.

To get the five digit greatest number we have to arrange these digits in descending order. So the greatest number is abcde.

To get the five digit greatest number we have to arrange these digits in descending order. So the smallest number is edcba.

It is given that the sum of greatest and smallest number is 99089.

When we add greatest and smallest number we noticed that the sum of c and c is 2c which is equal to 0. It is possible if c=0 or c=5. since c>0, therefore the value of c=5.

So the from the addition of unit digits we get e+a=9, there are many possibilities to get the sum 9 like 1+8, 2+7 and 3+6 because a>5 and e<5 since we have to find the greatest and smallest number so by hidden trial the value of e=1 and a=8. Similarly d+b=8, b>5 and d<5 by hidden trial the value of b=2 and d=6.

The digits are 8, 6, 5, 2 and 1, therefore largest number is 86521, the smallest number is 12568 and the sum of digits is 22.

3 0

2 years ago

Hallar el perimetro y area de la figura (find the perimeter and area of ​​the figure)

Hallar el perimetro y area de la figura (find the perimeter and area of the figure)