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valentinak56 [21]
3 years ago
10

A coin is tossed then a letter from the word INCREDIBLE is chosen at rndom What is thr probablility of getting heads then a vowe

l?
Mathematics
2 answers:
const2013 [10]3 years ago
8 0
4/10? Not sure, just guessing
Mrrafil [7]3 years ago
4 0

Answer: 1/5

Step-by-step explanation: the probability that you get heads on the coin is 1/2 and the probability for getting a vowel out of incredible is 4/10 or simplified 2/5. So you multiply... 1/2 x 2/5 = 1/5

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Three is subtracted from a number, and then the difference is divided by eleven. The result is twelve. What is the
Nostrana [21]

Answer:

The number is 135.

Step-by-step explanation:

<u>1) Form an equation</u>

Three is subtracted from a number

⇒ x-3 (where x is "the number")

The difference is divided by 11

⇒ \displaystyle \frac{x-3}{11}

The result is 12

⇒ \displaystyle \frac{x-3}{11}=12

<u>2) Solve the equation</u>

\displaystyle \frac{x-3}{11}=12

Multiply both sides by 11

\displaystyle \frac{x-3}{11}*11=12*11\\\\x-3=132

Add 3 to both sides

x-3+3=132+3\\x=135

Therefore, the number is 135.

I hope this helps!

8 0
2 years ago
Write a system of linear equations for the problem below(you do not have to solve it) Twenty-six students attended the community
anzhelika [568]

Answer:

Number of boys who attended the community service event = 10

Step-by-step explanation:

Let x denotes number of girls and y denotes number of boys.

Twenty-six students attended the community service event.

So,

x+y=26

The number of girls was 4 fewer than twice the number of boys.

x=2y-4

Put x=2y-4 in x+y=26

2y-4+y=26\\3y=26+4\\3y=30\\y=10

So,

Number of boys who attended the community service event = 10

7 0
2 years ago
Suppose h(t)=-5t^2+10t+3 is the height of a diver above the water(in meters), t seconds after the diver leaves the springboard.
statuscvo [17]

Answer:

See Below:

Step-by-step explanation:

Hit Water:

He hits the water when his height, h(t), is 0 meters above water.

0 = -5t^2+10t+3\\

This is no factorable so we use the quadratic formula.

(-b±√(b²-4ac))/2a

(-10±√(10²-4*-5*3))/2*-5

(-10±√(100+60))/-10

(-10±√160)/-10

(-10±√16*10)/-10

(-10±4√10)/-10

(-10±4√10)/-10         Seperate to two equations

(-10+ 4√10)/-10                          and                (-10- 4√10)/-10

(-10+12.65)/-10                                                 (-10-12.65)/-10  

-.265 Not Solution                                          2.265 Seconds

Becasue there is no negative time

The diver hits the water at 2.265 seconds

For when he is at the same height as the spring board, we need to find the height of the spring board, and we do that by substituting 0 for t because we need the height 0 seconds after he jumps.

h(0) = -5*0^2 +10*0 +3

h(0) = 3   The height of the spring board is 3 so we need to know when he is at 3 meters again.

3= -5t^2 + 10t + 3       Subtract 3 from both sides

0= -5t^2 +10t

0= -5(t^2-2t)       Factor out -5 and divide both sides by -5

0= t^2-2t    

0= t(t-2)      Factor out t.

Solve.

t= 0               t-2=0

                     t= 2

He will be at the same height as the spring board at t= 2 seconds

5 0
3 years ago
Rudy measured an Italian restaurant and made a scale drawing. The scale of the drawing was 1 centimeter : 6 meters. In the drawi
vekshin1
So I’m assuming you’re saying that 1 cm=6 m so if the kitchen is 4 cm in the drawing it has to be scaled up by 6 for each centimeter. So 4*6=24 so the kitchen is 24 meters long. Hope this helps!
7 0
3 years ago
Name the ray in TWO different ways.<br> M N P
Paha777 [63]
MP
PM
Assuming your n is on a side
4 0
2 years ago
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