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mezya [45]
3 years ago
8

if 10 is less than a number is multiplied by 3, the result is equal to 2 times the number. What is the number?

Mathematics
2 answers:
mario62 [17]3 years ago
8 0
Let the number be x.
3(x - 10) = 2x     | 10 less than x multiply be 3 equal 2 times x

3x - 30 = 2x        | Distribute 3

x - 30 = 0            | Subtract 2x from both sides

x = 30                 | Add 30 to both sides

Answer: The number is 30.
olya-2409 [2.1K]3 years ago
4 0
Hello!

We know that

(x - 10) * 3 = 2x

Distribute the 3

3x - 30 = 2x

Subtract 2x from both sides

x - 30 = 0

Add 30 to both sides

x = 30

The answer is 30

Hope this helps!
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A hat contains slips of paper with the names of the 26 other students in Eduardo’s class on them, 10 of whom are boys. To determ
Yuki888 [10]

Answer:

The probability that both of Eduardo’s partners for the group project will be girls is        

Step-by-step explanation:

Given : A hat contains slips of paper with the names of the 26 other students in Eduardo’s class on them, 10 of whom are boys. To determine his partners for the group project, Eduardo has to pull two names out of the hat without replacing them.

To find :  What is the probability that both of Eduardo’s partners for the group project will be girls?

Solution :

Total number of students = 26

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Eduardo has to pull two names out of the hat without replacing them.

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Favorable outcome of getting girl = 16

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For the second hat, without replacement

Favorable outcome of getting another girl = 15

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The probability that both of Eduardo’s partners for the group project will be girls is

Hope This Helps :D

5 0
3 years ago
Read 2 more answers
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