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3 years ago

In 2012, Katie had 74

Mathematics

1 answer:

Bond [772]3 years ago

4 0

Answer:

Rate of change is increase of 51 followers per year.

Step-by-step explanation:

Given:

Number of followers in 2012 = 74

Number of followers in 2015 = 227

Therefore, increase in followers = 227 - 74 = 153

Duration for the change = 2015 - 2012 = 3 years

Rate of change of followers is given as:

$\textrm{Rate of change}=\frac{Increase}{Duration}=\frac{153}{3}=51$

Therefore, rate of change is increase of 51 followers per year.

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2 different questions

spin [16.1K]

Answer:

950 and 950

Step-by-step explanation:

Lets just get this done :

10 x 50 = 500

9 x 50 = 450

500 + 450 =

950

---

20 x 50 = 1000

1000 - 50 = 950

Hope this helps!

5 0

3 years ago

Read 2 more answers

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frez [133]

Solution is in the picture

3 0

2 years ago

Loni’s credit card statement for April showed a membership fee of $85, a late fee of $45, a finance charge of $7.45, and an over

Jlenok [28]

Answer:

$157.45

Step-by-step explanation:

All the amounts provided in the question are supposed to be added as a fee, so if you add all the numbers you would get $157.45.

4 0

3 years ago

In a package of 25 colored pencils 8 are red , if you bought 125 pencils how many would be red

lora16 [44]

125=5 packets of pencils
each package contains 8 red
5 packages contain 5×8=40
In 125 pencils 40 are red.

5 0

3 years ago

A right cone has radius 9cm and slant height 12cm. The radius and slant height are both multiplied by 2/3. Which of the followin

Olegator [25]

Answer:

<em>The surface area is multiplied by 4/9.</em>

Step-by-step explanation:

<u>Surface Area of a Cone</u>

Being r the radius and l the slant height of a cone, then its surface area is

$SA=\pi r^2+\pi r l$

Now let's think both the radius and the slant height are multiplied by the same factor k, i.e.

r'=kr

l'=kl

The new surface area is

$SA'=\pi r'^2+\pi r' l'=\pi (kr)^2+\pi \cdot kr\cdot kl=k^2\pi r^2+k^2\pi rl$

$SA'=k^2(\pi r^2+\pi rl)=k^2\cdot SA$

The new surface area is the $k ^2$ times original SA. Since k=2/3, then

$SA'=4/9\ SA$

The surface area is multiplied by 4/9.

6 0

3 years ago