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Orlov [11]
3 years ago
13

Ms Li has 4 different books and 1 red pen,1 blue pen and 1 black pen she is wrapping one book and one pen.Draw a tree diagram to

find the number of combinations she can choose.
Mathematics
1 answer:
scoray [572]3 years ago
8 0
12 different combinations because 4 times 3 equals 12.
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Find the missing angle according to the Triangle Exterior Angle Theorem
Alexxandr [17]

Answer:

k = 36

Step-by-step explanation:

By exterior angle theorem:

k \degree + 110 \degree = 146 \degree \\  \\ k \degree = 146 \degree  - 110 \degree \\  \\  k \degree = 36\degree \\  \\ k = 36

6 0
2 years ago
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What is 25% of 40? I need the answer quickly!! First gets 5 stars and a thank you!!
eimsori [14]

Answer:

The answer is 10

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2 years ago
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3$ pre child 5$ adult totaling 374 tickets sold at the cost of 1524 dollars. how many child and adult tickets were sold
Elza [17]

Answer:

<em>173 children tickets were sold and 201 adult tickets were sold</em>

Step-by-step explanation:

Let the number of child ticket sold be x

Let the number of adult ticket sold be y

If the total number of ticket sold is 374, hence;

x +y = 374 .... 1

Also if the ticket cost 3$ per child and 5$ per adult with total cost of $1524, this can be expressed as;

3x + 5y = 1524..... 2

Solve both equations simultaneously

From 1; x = 374 - y ...3

Substitute equation 3 into 2

3(374-y)+5y = 1524

1122-3y+5y = 1524

1122+2y = 1524

2y = 1524 - 1122

2y = 402

y = 402/2

y = 201

Since x = 374-7

x = 374 - 201

x = 173

<em>Hence 173 children tickets were sold and 201 adult tickets were sold</em>

<em></em>

6 0
3 years ago
A coffee table is on sale for 20% off the original price of $115.
katen-ka-za [31]

Answer:

$98.90

Step-by-step explanation:

20% off of 115 is 92 then when you add the sales tax of 7.5% you get $98.90.

You are going to pay $6.90 in sales tax.

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5 0
2 years ago
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Radda [10]

Answer:

<u>9+7</u>

3+1

=4

Step-by-step explanation:

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2 years ago
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