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77julia77 [94]
3 years ago
5

A total of 320 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student t

ickets sold was three times the number of adult tickets sold. How many adult tickets were sold?
Mathematics
2 answers:
tatuchka [14]3 years ago
6 0

Answer:

80

Step-by-step explanation:

320/4 = 80

80*3 = 240

240 + 80 =320

larisa [96]3 years ago
5 0

Answer:

80

Step-by-step explanation:

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kherson [118]

Answer: 0.65

Step-by-step explanation:

Let A denote that moviegoers were female and B denotes that moviegoers were under age 25.

As per given we have,

P(A)=0.56     P(B)=0.26     P(A∩B)=0.17

Using formula ,

P(A\cup B)=P(A)+P(B)-P(A\cap B)\\\\ P(A\cup B)=0.56+0.26-0.17=0.65

Hence, the probability that a moviegoer is either female or under age 25 = 0.65

6 0
3 years ago
The ratio of the lengths of a triangle are 4:6:9 and its perimeter is 57cm. Find the length of the shortest side.
sergeinik [125]

Answer:12cm

Step-by-step explanation:

The ratio are:

4:6:9

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Let a be the unknown value.

The triangle has three sides: 4a, 6a, 9a

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57=19a

Divide both side by 19

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Therefore

4a:6a:9a

4×3:6×3:9×3

12:18:27

So the shortest side is 12cm

5 0
3 years ago
2 Two of the angles of this polygon are 100°. All the other angles are equal. (100° 1000 Calculate the size of the unmarked angl
Airida [17]

Answer: 140 step by step

Step-by-step explanation:

3 0
3 years ago
Which of the following describes the transformation shown?
zubka84 [21]

C) reflection over the x-axis

5 0
3 years ago
90% off<br> original price!<br> The original price of a calculator is $40. What is the sale price?
marissa [1.9K]

Answer:

that answer is 4

Step-by-step explanation:

divide the percent  by 40 and you get 4

4 0
3 years ago
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