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2 years ago

6. Lisa was making $8.15 per hour at her after-school job. She receives a 20% raise.

Mathematics

2 answers:

Tasya [4]2 years ago

8 0

D. $8.15=100% what about 120% because percentage increase you add you have increase to 100.

Mashutka [201]2 years ago

3 0

Answer:

D.$9.78

Step-by-step explanation:

20% of $8.15 $8.15 + $1.63

=8.15 x 20/100 =$9.78

=$1.63

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I need so much help please somebody help me

marysya [2.9K]

Answer:

$448

Step-by-step explanation:

You need to find 2% of 400.00, so you would do this: 0.02 · 400 = 8

That means $8 is 2% of 400, so all you need to do is multiply 8 by 6 to get 48. Add that number to the original $400, and you get $448.

Hope this answers your question!

6 0

3 years ago

Which of the following shows an integer and its opposite?

pashok25 [27]

3, -3

Step-by-step explanation:

an integer is a whole number

4 0

3 years ago

Find the probability of each event.

jeka57 [31]

Using the binomial distribution, it is found that there is a 0.0108 = 1.08% probability of the coin landing tails up at least nine times.

<h3>What is the binomial distribution formula?</h3>

The formula is:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$C_{n,x} = \frac{n!}{x!(n-x)!}$

The parameters are:

x is the number of successes.

n is the number of trials.

p is the probability of a success on a single trial.

In this problem:

The coin is fair, hence p = 0.5.

The coin is tossed 10 times, hence n = 10.

The probability that is lands tails up at least nine times is given by:

$P(X \geq 9) = P(X = 9) + P(X = 10)$

In which:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 9) = C_{10,9}.(0.5)^{9}.(0.5)^{1} = 0.0098$

$P(X = 10) = C_{10,10}.(0.5)^{10}.(0.5)^{0} = 0.001$

Hence:

$P(X \geq 9) = P(X = 9) + P(X = 10) = 0.0098 + 0.001 = 0.0108$

0.0108 = 1.08% probability of the coin landing tails up at least nine times.

More can be learned about the binomial distribution at brainly.com/question/24863377

#SPJ1

5 0

2 years ago

An attic floor is shaped like a triangle with a height of n yd and a base of 6 yd. Which expression represents the area of the f

Gwar [14]

I think it is 2..... i am not really sure

7 0

3 years ago

Help: Simplifying inside parenthesis first

Ne4ueva [31]

Answer:

4th one

Step-by-step explanation:

a^-2 goes down and become a^2 and

${a}^{2} \times {a}^{2} = {a}^{4}$

b^-1 goes up and become b

${b}^{2} \times {b}^{1} = {b}^{3}$

that why answer is 4th...mark me brainliest please

3 0

3 years ago