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statuscvo [17]
4 years ago
9

The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below: 9, 8, 12, 6, 10. What is th

e mean number of pages she wrote per day? *
Mathematics
1 answer:
cricket20 [7]4 years ago
4 0

Answer:

She wrote 9 pages per day on average

Step-by-step explanation:

The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below:

Monday = 9

Tuesday =8

Wednesday = 12

Thursday = 6

Friday = 10

Mean = \frac{\text{Sum of all observations}}{\text{No. of observations}}\\Mean =\frac{9+8+12+6+10}{5}

Mean=9

Hence She wrote 9 pages per day on average

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4 years ago
Colby and Sarah sold newspapers this past summer. Colby earned $4.50 for each newspaper he sold. Sarah's earnings were $35 less
Furkat [3]
Y represent the total number of newspapers sold by Colby.
5 0
3 years ago
Read 2 more answers
Solve 8×+9y=-5<br> -8×-9y=5
Paul [167]
Hi there,

Question: Need to Solve for y.
                       8×+9y=-5
                       -8×-9y=5

Answer:

8 × +9y = -5

Solve your equation in steps:
(8)(9)y = -5

Step 1: Simplify both sides of the equation
72y = -5

Step 2: Divide both sides by 72
72y/72 = -5/72y

Then when your done, you get your answer y= -5/72


Answer:

-8 × -9y = 5

Solve your equation in steps:
((-8)(-9))(y) = 5

Step 1: Simplify both sides of the equation.
72y = 5

Step 2: Divide both sides by 72.
72y/72 = 5/72

Then when your done, you get your answer y= 5/72


So here is the answers for both math problems.
8 × +9y = -5 is y= -5/72
-8 × -9y = 5 is y= 5/72

Hope this helps!
6 0
3 years ago
(10x - 17)<br> (6y + 29)\(8x + 1)
masya89 [10]

Answer: =

60

x

y

+

290

x

−

102

y

−

493

8

x

+

1

Step-by-step explanation:

10

x

−

17

)

(

6

y

+

29

)

8

x

+

1

3 0
3 years ago
Lindsay is 5 years younger than Mark. Seven years ago, the sum of their ages was 31.
Rashid [163]

Answer:

The present age of Mark is 25 years.

And present age of Lindsay is  20 years.

Step-by-step explanation:

Let us assume:

The present age of Lindsay = l

The present age of Mark = m

⇒ Age of Lindsay seven years ago =  (l -7) years

and Age of Mark seven years ago =  (m -7) years

According to question:

Lindsay is 5 years younger than Mark    ⇒   l = m  - 5

Seven years ago, the sum of their ages was 31  ⇒  (l-7) + (m -7)  = 31

So, the given set of equation are:

l = m  - 5    .........  (1)

(l-7) + (m -7)  = 31

⇒ ((m - 5) -7) + (m -7)  = 32  (from (1)

or, m -12 + m - 7  = 31

or, 2m = 31 + 19 = 50

⇒ m = 50 / 2  = 25, or m  = 25

Hence,the present age of Mark = 25 years

So,the present age of Lindsay = 25 - 5 = 20 years

7 0
3 years ago
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