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3 years ago

ANSWER ASAP PLEASE!! (Please show your work)

Mathematics

1 answer:

Strike441 [17]3 years ago

3 0

a. 60% of 120 is 72. 72 +120 is 192. they will sell the bike for $192

b. 30% of 192 is 57.6. 192-57.6 =134.4. the sale price is $134.40

c. they will make $14.40 because $134.40-$120=$14.40

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Simplify: −2[−3(x − 2y) + 4y]. <br> thanks!

Neporo4naja [7]

Answer:

6x − 20y

Step-by-step explanation:

−2[−3(x − 2y) + 4y] =

= −2[−3x + 6y + 4y]

= −2[−3x + 10y]

= 6x − 20y

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3 years ago

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. In the 107th Congress, the Senate consists of 13 women and 87 men. If a lobbyist for the tobacco industry randomly selects thr

brilliants [131]

Answer:

0.18% probability that they are all women

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the senators are chosen is not important, so the combinations formula is used to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

Desired outcomes:

3 women, from a set of 13. So

$D = C_{13,3} = \frac{13!}{3!(13 - 3)!} = 286$

Total outcomes:

3 senators, from a set of 100. So

$T = C_{100,3} = \frac{100!}{3!(100 - 3)!} = 161700$

Probability;

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3 years ago

Question 2

photoshop1234 [79]

The formula to find the amount is

The given function is

Comparing them we get

Subtracting 1 from both sides

Multiplying by 100 on both sides

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Question 4 of 10

olga nikolaevna [1]

The graph shown is decreasing.

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3 years ago

What is 2x - 5 =7 please help me I need it in 10 mins

goldenfox [79]

2x - 5 = 7
2x = 7 + 5
2x = 12
2x/2 = 12/2
x = 6

to check:
2x - 5 = 7
2(6) - 5 = 7
12 - 5 = 7
7 = 7

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3 years ago

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