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3 years ago

Sammi bought 2 dozen valentines how many valentines did sammi lave left after giving 7/8 of them to her classmates

Mathematics

1 answer:

Taya2010 [7]3 years ago

6 0

2 dozen = 24
If she gave away 7/8, that is 24/1(7/8)=21 given away.
So she has 24-21=3 left.

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In 2004, a magazine's circulation was about 1,000,000 readers. In 2014, the magazine had about 2,000,000 readers. Write a linear

professor190 [17]

Answer:

$r(t)=100,000t+600,000$

Step-by-step explanation:

Let

r ----> the number of readers (y-coordinate or dependent variable)

t ----> the number of years after 2000 (x-coordinate or independent variable)

Remember

2004 ----> represent t=4 years

2014 ----> represent t=14 years

we have the ordered pairs

(4,1,000,000) and (14,2,000,000)

step 1

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the values

$m=\frac{2,000,000-1,000,000}{14-4}$

$m=\frac{1,000,000}{10}$

$m=100,000\frac{readers}{year}$

step 2

Find the equation of the line in point slope form

$r-r1=m(t-t1)$

we have

$m=100,000\\point\ (4,1,000,000)$

substitute

$r-1,000,000=100,000(t-4)$

step 3

Convert to slope intercept form

$r=mt+b$

isolate the variable r

$r-1,000,000=100,000t-400,000\\r=100,000t-400,000+1,000,000\\r=100,000t+600,000$

step 4

Convert to function notation

$r(t)=100,000t+600,000$

6 0

3 years ago

Anybody know 7_(-1)

evablogger [386]

6 is the answer

Your welcome

Sincerely, h o n e y

5 0

3 years ago

How long would it take to travel 425 m at the rate of 50 m/sm/s ?

Gnom [1K]

The answer to your questions is A 8.5 s

Hope this helps!!

5 0

3 years ago

Read 2 more answers

What is the area of the shape below? 39 yd2 30 yd2 36 yd2 24 yd2

zlopas [31]

The answer is 24 yards

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3 years ago

For what value of p would the statement 5p = 30 be true?

shtirl [24]

Answer:

Step-by-step explanation:

divide both sides of the equals by 5 to get p on its own

5p divided by 5 = p

30 divided by 5 = 6

6 0

3 years ago