3 years ago

A fair coin is flipped eight times. What is the probability of the coin landing heads up exactly 2 times?

Mathematics

2 answers:

dimulka [17.4K]3 years ago

8 0

Answer:

50%

Step-by-step explanation:

no matter how many times it is flip you will get heads or tails.

Komok [63]3 years ago

8 0

Answer:

50%

Step-by-step explanation:

two sides 1/2= 50%

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In the expression 7³ - 4 · 3 +8, the first operation is? A. An Exponent B. Subtraction C. Multiplication D. Addition

Vikki [24]

Answer:

An exponent

Step-by-step explanation:

look at PEM/DA/S

Parenthesis

EXPONENTS

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4 years ago

2) Shane puts aside $40 per week for his monthly car payment. He earns $320 per week.

ExtremeBDS [4]

Answer:

12.5%

Step-by-step explanation:

320 divided by 40 = 8

100 divided by 8 = 12.5

100% is 320 dollars, which means that 40 dollars is 1/8 of 320. And 1/8 of 100 is 12.5%

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3 years ago

Jen has 6 crayons. Lisa has 3 crayons. Max has 1 more crayon than lisa. How many did they all have together

Dmitry [639]

Jen has 6 crayons

Lisa has 3 crayons

Max has = lisa +1 = 4 crayons

Jen + Lisa + Max = 6+3+4 = 13 crayons

Answer: 13 crayons

4 0

3 years ago

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Solve for x: -3 + 4x = 25

EleoNora [17]

Answer:

x=7

Step-by-step explanation:

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3 years ago

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Perimeter of a rectangle is 52 feet. If the length is 10 less than 2 times the width, what is the width?

ella [17]

Step-by-step explanation:

Let the width be x feet.

Therefore, length = 2x - 10

Perimeter of rectangle = 52

$2(2x - 10 + x) = 52 \\ 2(3x - 10) = 52 \\ \therefore \: 3x - 10 = \frac{52}{2} \\ \therefore \: 3x - 10 = 26\\ \therefore \: 3x = 26 + 10\\ \therefore \: 3x = 36 \\ \therefore \: x = \frac{36}{3} \\ \therefore \: x = 12 \\ \purple{ \boxed{\therefore \: width \: of \: rectangle = 12 \: feet }}$

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3 years ago