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klio [65]
3 years ago
9

Rachel has already written 10 pages, and she expects to write 1 page for every additional hour spent writing. How many hours wil

l Rachel have to spend writing this week in order to have written a total of 27 pages?
Mathematics
1 answer:
vlada-n [284]3 years ago
4 0

Answer:

27?

Step-by-step explanation:

because 1 page per 1 hour leads up to 27 hours for 27 pages. Or if your not counting the 10 pages she has already written, she spent 17 hours.

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Lucy is working with a series whose first term is 12 and that is generated by the equation t(n) = −9 + 21n. The sum of her serie
mafiozo [28]

There are 18 terms are in her series

<h3>What is Arithmetic progression series?</h3>

Arithmetic Progression (AP) is a sequence of numbers in order in which the difference of any two consecutive numbers is a constant value.

Given that: t(n) = −9 + 21n=l

a= 12, Sum = 3429

As, Sum of series =3429

     n/2 (a+l) =3429

     n/2 (12 +21n-9)= 3429

     n/2 (3+21n)=3429

     21n² + 3n= 6858

     21n² + 3n- 6858=0

    7n² + n- 2286=0

For solving for n, get

    n= 18 or n= -127/7

Thus, there 18 terms in the series.

Learn more about series here:

brainly.com/question/12146981

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7 0
2 years ago
How many 250ml glasses can be filled with 2l of water?
aev [14]

Answer:

8 glasses

Step-by-step explanation:

2L = 2,000 mL. 2000mL/250mL = 8 glasses

6 0
2 years ago
the frequency table shows the results of a survey that asked people how many hours they spend working in the yard per month. dis
Levart [38]

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yea

Step-by-step explanation:

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3 years ago
The county fair charges $1.00 per rode and an additional $3.00 to get in the fair. Write an equation to represent the total cost
Yuki888 [10]

Answer:

Step-by-step explanation:

It's independent

4 0
3 years ago
What’s equivalent to 1/3 with the denominator of 6
podryga [215]

Answer:

2/6

Step-by-step explanation:

Ok, so if the fraction is 1/3 and the denominator needs to be 6, then what you do is figure out what would turn 3 into 6. So, 3 x 2 would equal 6 and then you would have to also keep that two and multiply that 2 with the 1 and you would get 2. That would lead to the numerator being 2 and the denominator being 6, or 2/6.

8 0
3 years ago
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