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Trava [24]
3 years ago
12

Solve for x. ax+bx=21

Mathematics
2 answers:
Darya [45]3 years ago
7 0
Ax+bx =21
on factorising x, we get
x( a+b) =21
x = 21/a+b

Tanzania [10]3 years ago
5 0
Ax + bx = 21

factor out x

x(a + b) = 21
x = 21/(a+b)
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A deck of cards contains 6 black cards and 6 red cards. The first card drawn is not replaced before drawing the second card.
exis [7]

Answer : 5/22

A deck of cards contains 6 black cards and 6 red cards. The first card drawn is not replaced before drawing the second card.

Total number of outcome of cards = 12

Probability( any event)= favorable outcomes divide by total number of outcomes

Probability of selecting black card = \frac{6}{12} =\frac{1}{2}

The drawn card is not replaced . so 11 cards left . In that 11 cards, 5 black cards because one black card is already chosen

Probability of selecting another black card = \frac{5}{11}

Probability of selecting a black card followed by another black card =

= \frac{1}{2}*\frac{5}{11}

=\frac{5}{22}



4 0
3 years ago
Write 5.712 × 10–^8 without exponents
blagie [28]

Answer:

517200000

Step-by-step explanation:

10 to the power of 8 is equal to 100000000

5.712 times 100000000 is equal to 571200000

Could I pls get brainliest I need one more to level up pls help me out

Thank you!

8 0
2 years ago
Find an orderd pair (x,y) that is a solution to the equation 4x+y=9
Aleksandr [31]

Answer:

Below in bold.

Step-by-step explanation:

4x + y = 9

Let's put x = 0 then:

4(0) + y = 9

0 + y = 9

y = 9

So one. ordered pair that is a solution is (0, 9)

7 0
2 years ago
Taylor and Jesse are buying a magazine for $3.75 and a snack for $2.49 what is s the total cost of the two items?
Kazeer [188]

Hey There!

The answer you are looking for is; $6.24!

Work:

You simply add $3.75 + $2.49 together.

Since .75 + .29 = 1.24, you carry the one over to the full dollar.

3 + 2 + 1 = 6.

= 6.24

Hope I helped! 5 stars and brainliest are always appreciated.

7 0
3 years ago
Read 2 more answers
-2x + y = 4
nirvana33 [79]

Answer:

Any line can be graphed using two points. Select two x x values, and plug them into the equation to find the corresponding y y values. Tap for more steps.

Step-by-step explanation:

3 0
2 years ago
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