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zvonat [6]
3 years ago
9

Kali spent half of her weekly allowance on clothes. To earn more money her parents let her clean the gutters for $9. What is her

weekly allowance if she ended with $13?
Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
5 0
Minus 9$ from the 13$ after you get the answer then double it you should come out with the correct answer
Ber [7]3 years ago
3 0
So to find the answer to this, you have to consider that \frac{1}{2} x + 9 = 13 - half because half the pocket money (x) was spend on clothes, then plus 9 because that's how much extra she gained and 13 because that was the result of all the changes.

To solve this, first subtract 9 from both side, which leaves you with \frac{1}{2} x = 4 and \frac{1}{2} x is the same as \frac{1x}{2}, so to solve this, multiply both sides of the equation by two, resulting in x = 8. SO from this we can conclude that the weekly allowance is $8
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Lakima has a spinner divided into 5 equal sections that are labeled 1 though 5. She wants to compare the theoretical probability
Scrat [10]

Using probability concepts, it is found that:

  • The theoretical probability of spinning an odd number is equal to 3/5 = 0.6.
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<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

A theoretical probability is calculated without considering experiments, and we have that 3 out of the 5 numbers(1,3,5) and are odd, hence the theoretical probability is given by:

pT = 3/5 = 0.6.

For an experimental probability, we consider the experiments. Of the 6 spins, 3 resulted in an odd number, hence the experimental probability is given by:

p = 3/6 = 1/2 = 0.5.

Therefore, the theoretical probability of spinning an odd number is greater than the experimental probability of spinning an odd number.

More can be learned about probabilities at brainly.com/question/14398287

#SPJ1

3 0
2 years ago
A staircase has an angle of elevation of 28° anı
AveGali [126]

Hi there!

We can use right-triangle trigonometry to solve.

We are given the HYPOTENUSE and ADJACENT sides, so we must use cosine in this instance.

cosθ = Adjacent/Hypotenuse

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cos(28) = A/17

Solve for 'A':

17cos(28) = <u>15.01 ft</u>

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3 years ago
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