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algol13
4 years ago
7

Geometry class there are 15 boys and 10 girls. The students are presenting projects to the class. If Mrs. Brown selects students

at random for presentations, what is the probability that the first 2 students chosen are girls?
Mathematics
2 answers:
yaroslaw [1]4 years ago
8 0
2/25 chance that this could happen
Luda [366]4 years ago
8 0
The probability is 2/25
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HELP
velikii [3]

Answer:

It is a trinomial.

Step-by-step explanation:

Trinomials have 3 terms connected by plus or minus signs.

6 0
3 years ago
Read 2 more answers
Tamara practiced piano for 70 minutes on Tuesday. That is 7 times as long as she practiced on Monday. How long did she practice
Feliz [49]
70 divided by 7 equals 10.  

Tamara practiced the piano for 10 minutes on Monday.  <span />
7 0
3 years ago
Read 2 more answers
Determine which of these illustrates two quantities that combine to make 0
Nutka1998 [239]

Answer:

D)  Marty gets ten dollars for his allowance and then spends ten dollars at the movies.

Step-by-step explanation:

4 0
3 years ago
Heather had to collect insects for her biology project. She was able to collect 225 total insects. She collected 8 times as many
GREYUIT [131]

200 flying insects she catch for her project .

<u>Step-by-step explanation:</u>

We have , Heather had to collect insects for her biology project. She was able to collect 225 total insects. She collected 8 times as many insects that could fly as insects that couldn't fly. That means insects ratio of non-fly to fly is 1:8 .

There are a total of 225 insects , and for every one non fly insect there are 8 fly insects  , Let x be the number of insects that can't fly so:

x + 8x = 225

⇒ x + 8x = 225

⇒ 9x = 225

⇒ \frac{9}{9}x = \frac{225}{9}

⇒ x = \frac{225}{9}

⇒ x = 25

So , Number of fly insects = 8x = 8(25) = 200 . ∴ 200 flying insects she catch for her project .

5 0
3 years ago
A triangle has angles that measure 46° and 61°. What is the measure of the third angle? A. 15° B. 73° C. 107° D. 134°
Nastasia [14]
The interior angles of a triangle need to be equal to 180°, so to solve this you need to figure out how many degrees you need to get 180°.

46 + 61 = 107

180 - 107 = 73

The measure of the third angle is B. 73°.
5 0
3 years ago
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