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2 years ago

What is 10 percent of 80

2 answers:

8 0

Do you know how to do proportions?
X/80 = 10/100

so you cross multiply and get 100x = 800
divide by one hundred on both sides…
and your answer is 8

Papessa [141]2 years ago

3 0

To find 10per cent just divide by 10, the answer is 8

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Sandy is upgrading her Internet service. Fast Internet charges $40 for installation and $52.45 per month.

Orlov [11]

Answer:

After 8 months of internet use both the connection will cost the same.

Step-by-step explanation:

Fast Internet charges $40 for installation and $52.45 per month.

So, the total cost after using x months of the internet in Fast Internet will be

C = 40 + 52.45x

Quick Internet has free installation but charges $57.45 per month.

So, the total cost after using x months of the internet in Quick Internet will be

C = 57.45x

Now, if those two cost are same then

40 + 52.45x = 57.45x

⇒ 5x = 40

⇒ x = 8

Therefore, after 8 months of internet use both the connection will cost the same. (Answer)

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2 years ago

kaitlyn read 24 pages of a book, logan reads 3 times as many pages as kaitlyn. Which equation can be used to find the total numb

tia_tia [17]

Kaitlyn: 24

Logan: 24*3

Equation: 24*3=x

Simplify: x=72

Answer: 72 pages

8 0

3 years ago

Read 2 more answers

A= 12b1+b2h ; solve for b1

slega [8]

Answer:

b1 = 0, b2 = 0

EXPLICACION

A = 12 b1 + b2 h

A - 12 b1 - b2 h = 0

b2!=0, h = -(12 b1)/b2

8 0

2 years ago

A teacher believes that the third homework assignment is a key predictor in how well students will do on the midterm. Let x repr

Darina [25.2K]

Answer:

Hello your question has a disjointed equation attached to it and it is also incomplete attached below is the correct and complete question

A teacher believes that the third homework assignment is a key predictor in how well students will do on the midterm. Let x represent the third homework score and y the midterm exam score. A random sample of last terms students were selected and their grades are shown below

answer :

y-intercept = 25.9047

slope = 2.8420

Step-by-step explanation:

Determine the slope for the regression equation and y intercept

The regression equation ( gotten using excel ; attached below is the excel sample on how the equation was gotten )

y = 25.9047 + 2.8420x

from the equation gotten above

y-intercept = 25.9047

slope = 2.8420

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2 years ago

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2 years ago

Read 2 more answers