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poizon [28]
2 years ago
11

3(-5+2x) =21, 15 + 2x=21 is this distributed right?

Mathematics
1 answer:
hjlf2 years ago
3 0

Answer:

Step-by-step explanation:

3(-5+2x)=21

-15+6x=21  -5*3 is -15

6x=36

x=6

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This is the 4th question
gavmur [86]

Answer:

a) There are 9 outcomes.

b) **i have attached the tree diagram**

c) 1/9

d) 1/9

Step-by-step explanation:

Both events (choosing a shirt and choosing pants) are not mutually exclusive (disjoint). Meaning that both events can occur at the same time.

a) For a sequence of two events in which the first event can occur <em>m</em> ways and the second event can occur <em>n</em> ways, the events together can occur a total of <em>m</em> • <em>n</em> ways. So for this problem, you would do 3 • 3 which equals 9.

b) **tree diagram is attached**

c) Because there are two different events occurring (choosing a shirt and choosing pants) you need to multiply using the Multiplication Rule for Independent Events : P(A and B) = P(A) * P(B)

The probability of event A occurring (choosing a red shirt) is 1/3 and the probability of event B occurring (choosing brown pants) is also 1/3.

1/3 * 1/3 = 1/9

d) You would do the same thing here as part c.

The probability of event A occurring (choosing a blue shirt) is 1/3 and the probability of event B occurring (choosing blue pants) is again 1/3.

1/3 * 1/3 = 1/9

I hope this was helpful!! :)

4 0
2 years ago
36 singers in the choir 5/6 are boys how many of the singers are girls
Aleksandr [31]

Answer:

6

Step-by-step explanation:

5/6 of 30 = ?

5            x

----    =   ----

6             36

36 x 5 = 180

180/6 = 30

That means 30 singers are boys.

36 - 30 = 6 (the number of girls)

5 0
3 years ago
What is -5(-2) equal to
PtichkaEL [24]

Step-by-step explanation:

10

I think this should be the answer

3 0
3 years ago
Read 2 more answers
Allen is given three lengths of rope: 4 feet, 8 feet, and 15 feet. Can Allen form a triangle with side lengths of 4 feet, 8 feet
Nady [450]

B) No, set of side lengths does not satisfy Triangle Inequality Theorem

5 0
3 years ago
Read 2 more answers
Please i need this<br> Anyone?
g100num [7]

Answer:

5.28

Step-by-step explanation:

Divided it and you get 5.28. You can also use a calculator if you need to

3 0
3 years ago
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