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3 years ago

Help me on number problem 6 plz!!!!

Mathematics

1 answer:

Oksana_A [137]3 years ago

5 0

2 hamburger + 1 milk =5

1 hamburger + 2 milk =5-.25

1 hamburger + 2 milk =4.75

multiply this by -2

-2hamburger + -4 milk =-9.5

add the first equation

-2 hamburger + -4 milk =-9.5

2 hamburger + 1 milk =5

---------------------------------------

-3 milk = -4.5

divide by -3

milk = 1.50

Answer: milk $1.50

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2 years ago

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3 years ago

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3 years ago

How many ways can a president, vice-president, secretary, and treasurer be chosen from a club with 8 members?

STALIN [3.7K]

Hello! The answer to your question would be as followed:

There at 8 members in a club.

If we choose one of them as the president, there would be 7 people left the be chosen as vice president.

So for each of the 8 ways that we can choose the president. There will also be the 7 ways to choose the vice president

Therefore, 8 * 7 = 56.

Thus, we are left with 6 people to be chosen as treasurer

So with the 8 ways of someone being chosen as president and the 7 ways as someone being chosen as vice president. We have 6 ways for someone to be chosen as the treasurer.

Thus our math sentence would be 8 * 7 * 6 = 336

Meaning there are 366 ways for someone to be chosen as president, vice president, and treasurer with only 8 members.

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