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den301095 [7]
3 years ago
14

In janies homeroom, 45% of the students families own a dog and 23% percent own a dog and cat. What is the probability that a stu

dents family owns a cat and if the family owns a dog
Mathematics
1 answer:
galben [10]3 years ago
5 0

Answer:

Step-by-step explanation:

Probability for owning a dog = 45/100 = 9/20( 45% out of 100)

Probability of owing a cat = ( if 23 % are said to own both a dog and cat, then the same own cats) = 23/100

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What are the values of X and Z.
stiv31 [10]

Answer:

x = 12, z  = 86

Step-by-step explanation:

Two angles are called supplementary when their measures add up to 180 degrees.

(12x -58  + 13x - 62 ) = 180°

12 x + 13x -58 - 62 = 180°

25x - 120 = 180

25x = 180 + 120

x = 300/ 25

x = 12

----------------------------------------------------------------------------------

(z° + 13x - 62) = 180

(z° + 13(12) - 62 )= 180

(z° +  156 - 62 )= 180

(z° + 94 ) = 180

z° = 180 - 94

z  = 86

5 0
3 years ago
in an election for sheriff 210 people voted if there where 1260 possible voters write a ratio to compare the number of people wh
ale4655 [162]
210:1260

If simplified it is

1:6

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6 0
3 years ago
Two different families pay for entry into a water park.
icang [17]

Answer:

Adult ticket: $7

Child ticket: $2

Step-by-step explanation:

Set up a system of equations where a represents the cost of one adult ticket and c is the cost of one child ticket:

2a + 3c = 20

a + 4c = 15

Solve by elimination by multiplying the bottom equation by -2:

2a + 3c = 20

-2a -8c = -30

Add them together:

-5c = -10

c = 2

Now, we can plug in 2 as c to find the value of a:

2a + 3c = 20

2a + 3(2) = 20

2a + 6 = 20

2a = 14

a = 7

6 0
3 years ago
Please explain how this digraph works.
dusya [7]

Angles XQL and MQR are congruent because they are vertical angles. So

209 - 13 <em>b</em> = 146 - 4 <em>b</em>

Solve for <em>b</em> :

209 - 13 <em>b</em> = 146 - 4 <em>b</em>

209 - 146 = 13 <em>b</em> - 4<em> b</em>

63 = 9 <em>b</em>

<em>b</em> = 63/9 = 7

Then the measure of angle XQL is

(209 - 13*7)º = 118º

3 0
3 years ago
If 12 less than 4 times a number is 8, the number is 5. What difference sentence where the unknown number is also 5?
Gnesinka [82]
Sent a picture of the solution to the problem (s).

8 0
3 years ago
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