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3 years ago

6

Increase or decrease 32 pages to 28 Pages round to the nearest tenth of a percent

1 answer:

Amiraneli [1.4K]3 years ago

6 0

Hello! I would love to help!

Let's start by decreasing 32 pages to 28. How many pages does it take to get from 28 to 32? Let's subtract to find out!

32-28=4

Okay, now we know 28 pages is 4 less than 32.

Now, what percentage did it decrease by? Let's find out by dividing!

4/32=0.125

Let's make that decimal into a percentage by multiplying it by 100.

0.125*100=12.5

So, we now know the answer is...

decreased by 12.5%

Hope this helped! Comment if you have questions!

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If f(x)=4x3+3x2−5x+20 and g(x)=9x3−4x2+10x−55, what is (g−f)(x)?

Montano1993 [528]

Answer:

Step-by-step explanation:

(g-f)(x) = 9x³ - 4x² + 10x - 55 - [ 4x³ +3x² - 5x + 20]

To remove the parenthesis, take - inside, multiply f(x) by -1

= 9x³ - 4x² + 10x - 55 - 4x³ - 3x² + 5x - 20

Now, bring like terms together,

= 9x³ - 4x³ - 4x² - 3x² + 10x + 5x - 55 - 20

= 5x³ - 7x² + 15x - 75

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4 years ago

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kozerog [31]

Answer:

1

a. 5

b. 32

c. 130

d. 26

2

a. 5.65234

b. 5652.34

c. 8.1253758

d. 8125375.8

Step-by-step explanation:

3 0

3 years ago

Timmy is on a 2100 mile trip across the country. Over the last 12 hours of driving Timmy has traveled 720 miles. If he continues

kondor19780726 [428]

Answer:

23 hours

Step-by-step explanation:

So here we are trying to calculate Time which is Distance divided by Speed

Time = $\frac{Distance}{Speed}$

Firstly, we have to calculate the Speed which is = $\frac{720}{12}$ = 60

This means that the speed is 60 miles per hour or 60 mph.

Then to find the total time we take the Distance and divide it by the Speed:

$\frac{2100}{60}$ = 35

So this means that his total trip took 35 hours so lets subtract 12 hours to get how many more hours: 35 - 12 = 23 hours

4 0

3 years ago

You do not need to flip the inequality sign when solving the inequality -3 t + 7 ≥ 9.

NemiM [27]

For this case we must resolve the following inequality:

$-3t + 7 \geq9$

Subtracting 7 from both sides of the inequality we have:

$-3t \geq9-7\\-3t \geq2$

Dividing by 3 to both sides of the inequality we have:

$-t \geq \frac {2} {3}$

We multiply by -1 on both sides, taking into account that the sense of inequality changes:

$t \leq- \frac {2} {3}$

Thus, it is observed that to solve the inequality it is necessary to change the meaning of it.

ANswer:

False. It is necessary to change the sense of inequality

3 0

4 years ago

babymother [125]

It's a isosceles right angled triangle

LJ=17
KL=10

$\\ \sf{:}\Rrightarrow JK^2=17^2+10^2$

$\\ \sf{:}\Rrightarrow JK^2=289+100$

$\\ \sf{:}\Rrightarrow JK^2=389$

$\\ \sf{:}\Rrightarrow JK=19.72$

4 0

3 years ago