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Lisa [10]
3 years ago
8

There are 15 boys and 5 girls in a class.

Mathematics
1 answer:
Ipatiy [6.2K]3 years ago
7 0

Answer: 50.0

Step-by-step explanation:

1. Add 45+55=100

2. Divide 100 by 2 =50

3. Add a decimal after 50.0

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Mason is multiplying 3 x 5 x 0.1 x 0.1 what demical multiplication problem is he solving
Mariulka [41]

Answer:

The answer is 0.15

Step-by-step explanation:

3 × 5 × (0.1) × (0.1)

15 × (0.01) = 0.15

Thus, The answer is 0.15

<u>-TheUnknownScientist 72</u>

7 0
3 years ago
Read 2 more answers
A cereal box is 8 inches by 2 inches by 12 inches. Its surface area is<br> square inches.
motikmotik

Answer:

272

Step-by-step explanation:

5 0
3 years ago
Help plzzz I really need help
Alex17521 [72]
You would divide. 
Think of it as a 'real' situation. You are holding a piece of wire and you cut it into 3 pieces so you have 'divided' it into 3 pieces. 
62.4 divided by 3 = ??
The answer is 20.8 per piece 

To check your answer you can take 20.8 and multiply it by 3.


7 0
4 years ago
Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage r
svetlana [45]

Answer:

For any exponential function in which the base is less than 1, it will be an exponential decay situation.  In this problem, the base is 0.97.  The amount that the base is less than 1  ( i.e. 1 - base) represents, in decimal form, the percent of decrease, which in this case is 0.03 or 3%.  

Step-by-step explanation:

The formula for exponential decay is y=a(1-r)x.  

r is the decay rate.

4 0
3 years ago
A bag contains 5 blue marbles, 2 black marbles, and 3 red marbles. A marble is randomly drawn from the bag.
Natali5045456 [20]

Answer:  4/5 , 3/10

Step-by-step explanation:

P(not drawing black marble)=\frac{ number of marbles which are not black}{total number of marbles}

                                     = 8/10

                                     =4/5

P(drawing a red marble)=\frac{ number of marbles which are red}{total number of marbles}

                                          =3/10

4 0
3 years ago
Read 2 more answers
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