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3 years ago

Determine the percentage change if the price of an item goes from 2.25 to 1.80

Mathematics

1 answer:

Annette [7]3 years ago

5 0

Answer:25%

Step-by-step explanation:

1. increase=new number-original number

increase=2.25-1.80

increase=0.45

2. increase %= increase÷ original number × 100

%= 0.25× 100

%=25

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There are 9 teachers and 5 aides at the Hills Elementary School. What is the ratio of teachers to all adults?

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Solve the one step equations- 3.7+w=9.24

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2 years ago

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In a recent year, 304 of the approximately 300,000,000 people in the United States were struck by lightning. Estimate the prob

umka2103 [35]

Answer:

$\frac{19}{18,750,000}=0.0000010133333333$

Step-by-step explanation:

We have been given that in a recent year, 304 of the approximately 300,000,000 people in the United States were struck by lightning.

$\text{Probability}=\frac{\text{Number of favorable outcomes}}{\text{Number of possible outcomes}}$

$\text{P( A randomly selected person in the United States will be struck by lightning this year)}=\frac{304}{300,000,000}$

$\text{P( A randomly selected person in the United States will be struck by lightning this year)}=\frac{19}{18,750,000}$

$\text{P( A randomly selected person in the United States will be struck by lightning this year)}=0.0000010133333333$

Therefore, the probability that a randomly selected person in the United States will be struck by lightning this year is $\frac{19}{18,750,000}=0.0000010133333333$ .

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3 years ago

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