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3 years ago

8

Find three positive consecutive integers such status for the product of the first and the third integer is 17 more than three ti

mes the second integer

1 answer:

AlladinOne [14]3 years ago

7 0

tinyurl.com/wpazsebuAnswer:

Step-by-step explanation:

im soooo sorry but i need these points to axess answers to test

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What is the first step in solving 31 + 2 - 8(3)

ira [324]

Answer:

$31 + 2 - 8(3) \\ \\ = 31 + 2 - 24 \\ \\ 33 - 24 \\ \\ = 9$

# be careful#

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2 years ago

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An urn contains 6 red marbles and 4 black marbles. Two marbles are randomly drawn (one by one) from the urn without replacement.

strojnjashka [21]

Answer: The required probability is $\dfrac{2}{15}.$

Step-by-step explanation: Given that an urn contains 6 red marbles and 4 black marbles. Two marbles are randomly drawn one by one from the urn without replacement.

We are to find the probability that both drawn marbles are black.

Let E and F denote the events of two marbles one by one without replacement and let S and S' denote the corresponding sample spaces.

Then, we have

$n(E)=^4C_1=4,\\\\n(F)=^3C_1=3,\\\\n(S)=^{10}C_1=10,\\\\n(S')=^9C_1=9.$

Therefore, the probability that both marbles are red is given by

$p=P(E)\times P(F)=\dfrac{n(E)}{n(S)}\times\dfrac{n(F)}{n(S')}=\dfrac{4}{10}\times\dfrac{3}{9}=\dfrac{2}{15}.$

Thus, the required probability is $\dfrac{2}{15}.$

4 0

3 years ago

One US dollar equals 0.84 euros. Margo wants to exchange $400 for euro. How many euros will she receive in exchange?

Evgen [1.6K]

400*0.84= 33.5 Euros
If Margo exchanges $1 at 0.84 euro then $400 would be 33.4 Euros

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4 years ago

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How do you turn a Decimal to a percent and a percent to a Decimal

sashaice [31]

To turn a decimal into a percent you simply multiply it by 100

to turn a percent into a decimal, you would remove the percent symbol and move the decimal point two place to the left (make sure you add zeros as needed)

hope this helps! :)

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3 years ago

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If A = 30° and r = 12, find x. (Round your answer to the nearest whole number.)

Margaret [11]

Answer:

$\boxed{12}$

Step-by-step explanation:

A = 30° and r = 12

$\sin A = \frac{r}{r + x}$

$\sin 30 = \frac{12}{12 + x}$

$\frac{1}{2} = \frac{12}{12 + x}$

$1(12 + x) = 2(12)$

$12 + x = 24$

$x = 24 - 12$

$x = 12$

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Happy to help :)

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3 years ago

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