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3 years ago

20 points a coin is flipped 3 times and number of times heads appears is recorded. how many different outcomes can occur

Mathematics

2 answers:

8_murik_8 [283]3 years ago

6 0

There can only be two outcomes that result from the coon being flipped because there’s only two sides.

Sedaia [141]3 years ago

4 0

A) 2

hope this helps ::)

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2 years ago

Elijah has $0.55 worth of pennies and nickels. He has twice as many nickels as pennies. Determine the number of pennies and the

maxonik [38]

Answer:

The number of nickels are 10 and number of pennies are 5.

Step-by-step explanation:

Given:

Elijah has $0.55 worth of pennies and nickels.

He has twice as many nickels as pennies.

Now, to determine the number of pennies and the number of nickels that Elijah has.

Let the number of nickels be $x.$

And the number of pennies be $y.$

As given that he has twice as many nickels as pennies.

$2y=x$

$x=2y.$ ......(1)

The total worth of worth of pennies and nickels = $0.55.

As, the value of a penny = $0.01.

And the value of a nickel = $0.05.

Now, to get the number of pennies and the number of nickels that Elijah has:

$0.05(x)+0.01(y)=0.55$

Putting the value of $x$ from equation (1):

$0.05(2y)+0.01(y)=0.55$

$0.10y+0.01y=0.55$

$0.11y=0.55$

Dividing both sides by 0.11 we get:

$y=5.$

The number of pennies = 5.

Now, putting the value of $y$ in equation ( 1 ) we get:

$x=2y\\x=2\times 5\\x=10.$

The number of nickels = 10.

Therefore, the number of nickels are 10 and number of pennies are 5.

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2 years ago

If 3 times a certain number is increased by 4 the result is 28. What is the number?

k0ka [10]

x = number

the equation to use is: 3x+4=28

3x+4=28

3x=24

x-24/3 =8

x=8

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3 years ago

What is 0.5854 as a percent

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Move the decimal over by 2
so 58.54%
that simple

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2 years ago

Read 2 more answers

A car is going at 80 mph. how long will it take to cover 20 miles

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30 = 80*t
t = 30/80 = 3/8 hr
3/8 hr * 60 min/hr = 180/8 = 22.5 min

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2 years ago

*20 points* a coin is flipped 3 times and number of times heads appears is recorded. how many different outcomes can occur

20 points a coin is flipped 3 times and number of times heads appears is recorded. how many different outcomes can occur