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3 years ago

I need help with these...

Mathematics

1 answer:

DaniilM [7]3 years ago

7 0

All you have to do is do the distributive property. So, for the first one you would do 5 times x which equals 5x and then you would do 5 times 4 which equals twenty. All you are left with is the addition sign. Your full equation now would be 5x+20

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What is the chance of rolling five or more on a 12 sided die

Iteru [2.4K]

Answer:

8/12 or 66.6%

Step-by-step explanation:

If we have 12 sides to a die then there are 12 possible outcomes, as a result if the dice would have a total of 8 sides that is either 5 or more (5,6,7,8,9,10,11,12,) that means 8/12 of the dice would be a satisfy the outcome we are looking for and 8/12 is around 67%

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3 years ago

PLSSSSSS HELPPPP PLSSSSS

Leviafan [203]

Answer:

C. 200 minutes, $260

Step-by-step explanation:

The equations would look like this

Lynn = y = 1.10x + 40

Heather = y = 1.15x + 30

Now just plug in.

Lynn

260 = 1.10(200) + 40

260 = 220 + 40

260 = 260

Heather

260 = 1.15(200) + 30

260 = 230 + 30

260 = 260

Hope this helps ya! Keep smiling!

5 0

2 years ago

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What formula do you use to find the area of a circle?

icang [17]

The area of a circle is π (Pi) times the Radius squared:
A = π × r2

Or, when you know the Diameter:

A = (π/4) × D2

Or, when you know the Circumference:

A = C2 / 4π

Hope it helps

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3 years ago

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In a die game, you roll a standard 6-sided die twice. If the second number rolled is the same as the first number rolled, you wi

mario62 [17]

Answer:

You can expect to make $250.

Step-by-step explanation:

Possible outcomes:

For the pair of dice:

(1,1), (1,2), (1,3), (1,4), (1,5), (1,6)

(2,1), (2,2), (2,3), (2,4), (2,5), (2,6)

(3,1), (3,2), (3,3), (3,4), (3,5), (3,6)

(4,1), (4,2), (4,3), (4,4), (4,5), (4,6)

(5,1), (5,2), (5,3), (5,4), (5,5), (5,6)

(6,1), (6,2), (6,3), (6,4), (6,5), (6,6)

So 36 total outcomes.

Probability of the second number rolled being the same as the first number rolled:

6 outcomes: (1,1), (2,2), (3,3), (4,4), (5,5), (6,6)

Out of 36, thus:

$p = \frac{6}{36} = \frac{1}{6}$

Expected value of 1 game:

1/6 probability of earning $25.

5/6 probability of losing $2.

Thus:

$E = 25\frac{1}{6} - 2\frac{5}{6} = \frac{25 - 10}{6} = 2.5$

100 games:

100*2.5 = 250

You can expect to make $250.

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2 years ago

At 65 mph how far would u go in 1.5 hours

Salsk061 [2.6K]

Answer:

97.5 miles

Step-by-step explanation:

Multiply 65 by 1.5

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3 years ago

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