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3 years ago

How much is 2 + 2 .do not use the calculator

Mathematics

2 answers:

aleksandrvk [35]3 years ago

7 0

The answer to this question is 4!

sasho [114]3 years ago

4 0

Its obviously 4 lol....

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Suppose a coin is flipped and a card is drawn from the deck. What is the probability that the coin lands on tails and the card i

Deffense [45]

Answer:

1/26

Step-by-step explanation:

1 out of 13 would be equal to the amount of cards that would be a jack.

But you also have to take into regards the coin flip 50%chance so you would just could what the number is divided by to get the right answer. Since out come could be tails or head instead of just being one for sure for example.

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3 years ago

Find the equation of the line<br> In the form y=mx+b

Aleonysh [2.5K]

Answer:

y = -1/3x + 5

Step-by-step explanation:

-1/3 is the slope because the line goes down 1 unit and right 3 units.

The y-intercept is 5 because that is where the line crosses the y-axis.

8 0

3 years ago

[Probability / Statistics) Twenty families were surveyed. How many have boys only?

Snowcat [4.5K]

Answer:

Step-by-step explanation:

We start by seeing how many families we have in total, which is 20. We then must subtract the number of families with girls only, the number of families with both boys and girls, and the number of families with no children. 20 - 7 is 13, then 13 - 8 is 5, and 5 - 0 is 5.

8 0

3 years ago

Read 2 more answers

my brother and i walk the same route every day. my beother takes 40minutes to get to school and i take 30minutes to get to schoo

Goryan [66]

In 1 minute, I walk = 1/30

In 1 minute, My brother walk = 1/40

In T minutes, I walk = T*1/30

My brother walk 8 minute before = T + 8

In 1 minute, My brother walk = (T + 8)*1/40

When these two distances are same, then I will catch him.

T*(1/30) = (T + 8)*(1/40)

30*(T + 8) = 40*T

30*T + 240 = 40*T

240 = 10*T

T = 24 minutes

hence, I will catch him in 24 minutes.

Take 5 instead of 8.

My brother walk 5 minute before = T + 5

In 1 minute, My brother walk = (T + 5)*1/40

When these two distances are same, then I will catch him.

T*(1/30) = (T + 5)*(1/40)

30*(T + 5) = 40*T

30*T + 150 = 40*T

150 = 10*T

T = 15 minutes

Hence, I will catch him in 15 minutes.

6 0

3 years ago

How many solutions can be found for the equation 5x + 3(x − 1) = 10x − x − 5? (4 points)

Svet_ta [14]

Answer:

The correct option is b.

Step-by-step explanation:

To find the number of solutions, we need to solve the equation:

$5x + 3(x - 1) = 10x - x - 5$

Let's group all the "x" on the equation.

$5x + 3x - 10x + x = 3 - 5$

Now, let's solve for "x".

$-x = -2$

$x = 2$

Therefore, the equation has one solution. The correct option is b.

I hope it helps you!

8 0

2 years ago