3 years ago

Please thank my profile!

Mathematics

2 answers:

Verdich [7]3 years ago

8 0

Okay I will ..thank you

geniusboy [140]3 years ago

3 0

Answer:

Thanks profile

Step-by-step explanation:

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-2+y=9 3x-7y=3 solve the system by the substitution

kherson [118]

Hello from MrBillDoesMath!

Answer:

x = 80/3 ( 26 2/3)

y = 11

Discussion:

Step 1:

-2 + y = 9 => add 2 to both sides

2 + -2 + y = 9 +2 =>

y = 11

Step 2:

Substitute y = 11 (from Step 1) into

3x - 7y = 3 =>

3x - 7(11) = 3 => y = 11 from Step 1

3x - 77 = 3 => add 77 to both sides

3x - 77 + 77 = 3 + 77 =>

3x = 80 =>

x = 80/3

Thank you,

MrB

3 0

3 years ago

A total of 3 cards are chosen at random, without replacing them, from a standard deck of 52 playing cards. What is the probabili

Minchanka [31]

Answer: $\dfrac{1}{5525}$

Step-by-step explanation:

The total number of cards =52

The number of kings in the cards = 4

If repetition is not allowed , then the total number of ways of choosing 3 cards will be :-

$52\times51\times50=132600$

The number of ways of choosing 3 kings will be :-

$4\times3\times2=24$

Now, the probability of choosing 3 king cards will be :-

$\dfrac{24}{132600}=\dfrac{1}{5525}$

Hence, the probability of choosing 3 king cards = $\dfrac{1}{5525}$

4 0

3 years ago

Im confused about this question can someone solve it for me

Brums [2.3K]

Answer:

Step-by-step explanation:

you just foil them together and get that

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3 years ago

A truck has left Amsterdam with a speed of 52 mph. After 5 hours a car has left Amsterdam with a speed of 78 mph. At what distan

torisob [31]

It would be 10 hours but the distance would be 260 mph.

7 0

3 years ago

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What is the slope of the line 3х + 5у — 2х + Зу

Shkiper50 [21]

Answer:

-1/8

Step-by-step explanation:

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3 years ago