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spin [16.1K]
3 years ago
9

Let x represent the number of hours you read a book and y the total number of pages you have read,You already read 70 pages and

can 30 pages per hour. Write an equation relating x hours and y pages you read, Then predict the total pages you will have read after another 3 hours.
Mathematics
1 answer:
nadezda [96]3 years ago
7 0
X=number of hours you read
y=number of pages

y=30x+70
number of pages after 3 hours:
y=30(3)+70
y=90+70
y=160

therefore, 160 pages after 3 hours
?
(Brainlist)?!! Hope this helps!
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Gwar [14]

Answer:

t = 5 seconds

Step-by-step explanation:

It is given that, the height h, in feet of a ball above the ground is given by :

h=-16t^2+64t+80

Where t is in seconds

We need to find how long does it take the ball to hit the ground? When it hits the ground, its height will be equal to 0. So,

-16t^2+64t+80=0\\\\t=\dfrac{-64\pm \sqrt{(64)^2-4\times (-16)(80)} }{2\times -16}\\\\t=\dfrac{-64+ \sqrt{(64)^2-4\times (-16)(80)} }{2\times -16},\dfrac{-64-\sqrt{(64)^2-4\times (-16)(80)} }{2\times -16}\\\\t=-1\ s\ \text{and}\ t=5\ s

Neglecting negative time.

It means ball will take 5 seconds to hit the ground.

3 0
3 years ago
In triangle QRS, QR is congruent to SR and RT bisects QS. What justification can you give for QRT congruent to SRT and give the
spayn [35]
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4 0
3 years ago
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Cary sets up a checking account with an initial balance of $27,700, and the rent for her
jek_recluse [69]

Answer:

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Step-by-step explanation:

First, we need to find how much she paid the whole year. 27,700-x=7900. If we subtract 7900 from each side and add x to each side, we get 19,800=x. Therefore, she paid $19,800 in rent the whole year. Since there are 12 months in a year, and each month she paid the same, she paid $1,650 in rent each year, for 19800/12=1650

5 0
3 years ago
G(x)=-5x+4<br> Find g(-3)
oksian1 [2.3K]

Answer:

19

Step-by-step explanation:

I think. I'm not very good at this and I can't type it out. I just hope this is correct.

7 0
3 years ago
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Given the functions f(n) = 11 and g(n) = -2(n - 1), combine them to create an arithmetic sequence, an, and solve for the 31st te
FromTheMoon [43]

Answer:

Option A is correct

a_n = 11-2(n-1) and  a_{31} = -49

Step-by-step explanation:

Given the functions:

f(n) = 11

g(n) = -2(n-1)

then;

combine them to create an arithmetic sequence i.e,

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To find the 31st term.

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Therefore, we have an arithmetic sequence,

a_n = 11-2(n-1) and  a_{31} = -49

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3 years ago
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