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lyudmila [28]
3 years ago
5

5. A study of a population of 1,200 frogs revealed that 12 out of every 180 frogs in the population

Mathematics
1 answer:
Delvig [45]3 years ago
8 0

Answer:

1,280

Step-by-step explanation:

prob(spots) = 12/180 = 1/15

so of the 1200 frogs, (1/15)(1200) should have spots, so ..

how many should not have frogs ?

or

prob(not spots) = 14/15

number who don't have spots = (14/15)(1200) = 1,280

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Answer:

90 minutes

Step-by-step explanation:

an hour is 60 minutes+ another 30 minutes= 90

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3 years ago
5. Brianna earns $19,500 per year. Lisa earns $1,000 per month. Write a numerical expression that represents how much more Brian
Morgarella [4.7K]

Answer:

19,500 - (1,000 x 12) = X

Brianna earns $ 7,500 more than Lisa per year.

Step-by-step explanation:

Given that Brianna earns $ 19,500 per year and Lisa earns $ 1,000 per month, to write a numerical expression that represents how much more Brianna earns per year than Lisa the following calculations and equations must be performed:

19,500 - (1,000 x 12) = X

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Thus, Brianna earns $ 7,500 more than Lisa throughout the year.

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3 years ago
Write 906,378 in expanded form
Vera_Pavlovna [14]
<span>The number 906,378 would be written in expanded form as
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3 years ago
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Alisiya [41]
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Steven solves 7 times 3 the break apart and distribute strategy. Shown An Example of what Steven’s work might look below.
Shalnov [3]

Using break apart and distribute strategy, Steven's work can be the following steps:

  • 7 \times 3 = 7 \times (1 + 2).
  • 7 \times 3 = 7 \times 1 + 7 \times 2.
  • 7 \times 3 = 7 + 14.
  • 7 \times 3 = 21

The expression is given as:

7 \times 3

<u>Using the break apart and distribute strategy</u>

3 can be break into 1 + 2

So, we have:

7 \times 3 = 7 \times (1 + 2)

Distribute

7 \times 3 = 7 \times 1 + 7 \times 2

Simplify

7 \times 3 = 7 + 14

7 \times 3 = 21

Read more about break apart and distribute strategy at:

brainly.com/question/6037402

3 0
2 years ago
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