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MaRussiya [10]
2 years ago
7

What is the value of 5(a-4b) when a= -7 and b= 0.25

Mathematics
1 answer:
Tom [10]2 years ago
5 0

Answer:

-40

Step-by-step explanation:

5(-7-4[0.25])

5(-7-1)

-35-5

-40

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A sample of bacteria is growing at a rate of 8% per hour compound continuously. How many hours will it take for the sample to do
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Answer:

The sample would double in 9 hours

Step-by-step explanation

The number of hours it will take for the sample to double can be found using the 72 rule.

The 72 rule is such that a growth rate would double itself by it is used in dividing the number 72 as shown below:

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The number of hours it would take the sample to double is 9 hours as computed above.

6 0
3 years ago
Go to a clothing store with
olga2289 [7]

Answer:

original price $75

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Step-by-step explanation:

I found a pair of dress pants for $75.

Since the discount is 25%, then the discount is

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The sale price is the original price, $75, minus the discount, $18.75.

$75 - $18.75 = $56.25

5 0
1 year ago
at a community college a survey was taken to determine where students study on campus. Of the 270 students surveyed, it was dete
babymother [125]

Answer:

177

Step-by-step explanation:

Although it says that 82 studied in both, the question is aksing for ONLY at the library. It says that of the 270 surveyed, 177 study at the library.

This means that 65.56% of the students studied at the library primarely.

8 0
2 years ago
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Help! I give brainlest. Problem is in Image
yawa3891 [41]

Answer:

65

Step-by-step explanation:

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9 \star 4  = 9^2-4^2 = 81-16 = 65

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2 years ago
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