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3 years ago

Can someone pls help me with this question

Mathematics

1 answer:

disa [49]3 years ago

6 0

The answer will be C. -3

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Janet completed this entire column of math homework in 10 minutes.How many seconds per question did Janet spend ?

Olegator [25]

Complete Question: 

Janet completed this entire column of math homework in 10 minutes. How many seconds per question did Janet spend?

BTW there is 8 questions in the row

Answer: 

Janet spent 75 seconds on each of 8 question

Step-by-step explanation:

We know, every 1 minute consists of 60 seconds. In question, given as 10 minutes. So, it can be expressed in seconds as below,

1 minute = 60 seconds

Hence 10 minutes = 10 (60) = 600 seconds

Let’s consider ‘x’, the time spent on every single question by her.

To find the time spent by Janet on each question, divide 600 seconds by the number of questions she did.

Divide 600 by the number of questions, generally the equation can be formed as ,

$\frac{600}{\text { number of questions }}= 'x' seconds per question$

If the number of question is ’8’, then

$'x' seconds per question =\frac{600}{8}=75 seconds$

Hence, Janet spent 75 seconds on each of 8 question

3 0

4 years ago

What is the original price if there is a 10% discount and the sale price is $76.50

Mrac [35]

Answer: $84.15

Step-by-step explanation:

We need to find 10% of $76.50 to add it to get the original number.

Formula to get 10% of $76.50: (10*76.50)/100=$7.65

Now we add $7.65 to get the original price

$76.50+$7.65=$84.15

8 0

4 years ago

What is the sum of the geometric series 20 + 21 + 22 + 23 + 24 + … + 29? 1,023 511 2,407 1,012 NextReset

docker41 [41]

511 is the correct answer

6 0

3 years ago

Read 2 more answers

How do you solve this problem: 2y(6 - 1)(6 - 1) = - 200

Lorico [155]

Solve: 2y(6 - 1)(6 - 1) = - 200

Simplify both sides of the equation:

50y = - 200

Divide both sides by 50

50y/50 = -200/50

y = - 4

Answer: y = - 4

Hope that helps!!!!!!! (Answer: y = - 4)

5 0

4 years ago

Read 2 more answers

The sun burns 6 million tonnes of hydrogen a second. Calculate how many tonnes of hydrogen it burns a year (that's 365.25 days)

Illusion [34]

Your answer is 189,345,600,000,000 tons per year

There are 86,400 seconds in a day, and 365.25 days in a year. So 86,400*365.25= 31,557,600 seconds per year. Now if each second the sun burns 6 million tons we have to multiply that by the number of total seconds per year. So 31,557,600 * 6,000,000= 189,345,600,000,000 hydrogen tons per year.
Hope this helped :)

4 0

4 years ago