# If the original quantity is 10 and the new quantity is 7 what is the percent decrease?

QUESTION POSTED AT 19/02/2020 - 12:01 PM

QUESTION POSTED AT 19/02/2020 - 12:01 PM

7 divided by 10 then subtract 100% =30

First, find the area of the plot:

25*10=250

1000/250 is 4

the population density is 4 squirrels per square foot.

25*10=250

1000/250 is 4

the population density is 4 squirrels per square foot.

ANSWERED AT 30/03/2020 - 01:30 AM

QUESTION POSTED AT 30/03/2020 - 01:30 AM

62.5% of the flour left!

ANSWERED AT 29/03/2020 - 06:35 PM

QUESTION POSTED AT 29/03/2020 - 06:35 PM

1. 86%, 0.682, 67%, 5/8, 3/4, 0.41

2. 5%

2. 5%

ANSWERED AT 29/03/2020 - 06:32 PM

QUESTION POSTED AT 29/03/2020 - 06:32 PM

1. 0.625 and 62.5%

2. Match 1 had 156 expert fighters (0.5 x 312), Match 2 had 110 expert fighters (0.4x275) Match 1 had more expert fighters by 46

2. Match 1 had 156 expert fighters (0.5 x 312), Match 2 had 110 expert fighters (0.4x275) Match 1 had more expert fighters by 46

ANSWERED AT 29/03/2020 - 06:31 PM

QUESTION POSTED AT 29/03/2020 - 06:31 PM

I've attached a picture below of the formula for a **finite geometric sequence. **It includes an **infinite geometric sequence **formula for your reference, too.

Plug in the values.

S₁₀ ≈ 79.92

Plug in the values.

S₁₀ ≈ 79.92

ANSWERED AT 29/03/2020 - 06:31 PM

QUESTION POSTED AT 29/03/2020 - 06:31 PM

Write 76% as a decimal and as a reduced fraction.

Decimal : 0.76

Fraction : 76/100, which then simplifies to 38/50, because you divide the numerator & denominator by 2. Then, you divide them by 2 again, and get 19/25.

Reduced Fraction : 19/25

2) Po messes up 4 out of every 10 moves.

So, to make this slightly easier, we're going to turn that (above) into a fraction!

Fraction : 4/10

Then, we turn it into a decimal.

To turn it into a decimal, multiply 4/10 by 10/10, so that the denominator is 100.

Fraction: 4/10 × 10/10 = 40/100

Decimal : Because the denominator is 100, all we have to do is add a decimal marking 2 places to the left of the last digit. (0.40)

Now, because we have our decimal, we simply say that the percentage is 40%.

Why? Because if the decimal is in the hundredths place, all you need to do is take the numbers on the right side of the decimal marking, and add a percentage sign to it.

~Hope I helped!~

Decimal : 0.76

Fraction : 76/100, which then simplifies to 38/50, because you divide the numerator & denominator by 2. Then, you divide them by 2 again, and get 19/25.

Reduced Fraction : 19/25

2) Po messes up 4 out of every 10 moves.

So, to make this slightly easier, we're going to turn that (above) into a fraction!

Fraction : 4/10

Then, we turn it into a decimal.

To turn it into a decimal, multiply 4/10 by 10/10, so that the denominator is 100.

Fraction: 4/10 × 10/10 = 40/100

Decimal : Because the denominator is 100, all we have to do is add a decimal marking 2 places to the left of the last digit. (0.40)

Now, because we have our decimal, we simply say that the percentage is 40%.

Why? Because if the decimal is in the hundredths place, all you need to do is take the numbers on the right side of the decimal marking, and add a percentage sign to it.

~Hope I helped!~

ANSWERED AT 29/03/2020 - 06:31 PM

QUESTION POSTED AT 29/03/2020 - 06:31 PM

Current worth = 10,000,000 * (1.03)^years

We must determine the years when current worth = 13,000,000

13,000,000 / 10,000,000 = 1.03^years

1.3 = 1.03^years

Taking logs of both sides:

log (1.3) = years*log(1.03)

log(1.3) / log(1.03) = years

0.11394335231 / 0.012837224705 = years

years = 8.8760113598

Roughly about 8.9 years

We must determine the years when current worth = 13,000,000

13,000,000 / 10,000,000 = 1.03^years

1.3 = 1.03^years

Taking logs of both sides:

log (1.3) = years*log(1.03)

log(1.3) / log(1.03) = years

0.11394335231 / 0.012837224705 = years

years = 8.8760113598

Roughly about 8.9 years

ANSWERED AT 29/03/2020 - 06:29 PM

QUESTION POSTED AT 29/03/2020 - 06:29 PM

IDK really, but you can ask the question on brainly.

ANSWERED AT 29/03/2020 - 06:29 PM

QUESTION POSTED AT 29/03/2020 - 06:29 PM

Well C because

a+3=12

-3 -3

a= 9

a+3=12

-3 -3

a= 9

ANSWERED AT 29/03/2020 - 06:28 PM

QUESTION POSTED AT 29/03/2020 - 06:28 PM

Answers are

x=-5 and x = 1

x=-5 and x = 1

ANSWERED AT 29/03/2020 - 06:23 PM

QUESTION POSTED AT 29/03/2020 - 06:23 PM

The answer is Mira. hope this helps

ANSWERED AT 29/03/2020 - 04:30 PM

QUESTION POSTED AT 29/03/2020 - 04:30 PM

It's D: (0,0)

This is because when you put 0 in for x your y value will equal 0 and that is one of your answers, so it's the point (0,0)

This is because when you put 0 in for x your y value will equal 0 and that is one of your answers, so it's the point (0,0)

ANSWERED AT 28/03/2020 - 07:19 PM

QUESTION POSTED AT 28/03/2020 - 07:19 PM

The correct answer is the last choice.

ANSWERED AT 28/03/2020 - 07:19 PM

QUESTION POSTED AT 28/03/2020 - 07:19 PM

Add up the total number of balloons (15) there are 4 purples so the probably of you getting purple at all is 4/15. consider that after you hit the first purple, your odds decrease to 3/14.

ANSWERED AT 28/03/2020 - 01:00 PM

QUESTION POSTED AT 28/03/2020 - 01:00 PM

200 + 40 - 10 = 230

230 x 5 = 1150

$1150

230 x 5 = 1150

$1150

ANSWERED AT 28/03/2020 - 12:50 PM

QUESTION POSTED AT 28/03/2020 - 12:50 PM

**Answer:**

The median of Group 2 is greater than the median of Group 1.

**Step-by-step explanation:**

ANSWERED AT 28/03/2020 - 12:48 PM

QUESTION POSTED AT 28/03/2020 - 12:48 PM

**Answer:**

correct option is:

613

**Step-by-step explanation:**

Out of 150 people(50 people day 1, 50 people day 2 and 50 people day 3)

40 people prefer vanilla (13 of day 1,12 of day 2 and 15 of day 3)

That means, out of 150 : 40 prefer vanilla

out of 2300 : prefer vanilla

≈ 613

**Hence, the correct option is:**

** 613**

ANSWERED AT 28/03/2020 - 12:47 PM

QUESTION POSTED AT 28/03/2020 - 12:47 PM

98304=p (.8)^5

Solve for p

P=300000

Solve for p

P=300000

ANSWERED AT 28/03/2020 - 12:45 PM

QUESTION POSTED AT 28/03/2020 - 12:45 PM

Space in the box = volume

volume = length x width x height

box 1 volume = 15 x 20 x 10 = 3000

box 2 volume = 15 x 20 x 14 = 4200

how much space is left = box 2 - box 1 = 1200 inches

volume = length x width x height

box 1 volume = 15 x 20 x 10 = 3000

box 2 volume = 15 x 20 x 14 = 4200

how much space is left = box 2 - box 1 = 1200 inches

ANSWERED AT 28/03/2020 - 12:44 PM

QUESTION POSTED AT 28/03/2020 - 12:44 PM

So when you turn it into a decimal it has a correct place value say if you have 0.70 as a fraction it would be 70/100 because the fraction is telling you it's hundredths one tip is look at the decimal pretend it's always a 1 then in front of the decimal is all zeros and that is your denominator. Hope this helped ( :

ANSWERED AT 28/03/2020 - 12:44 PM

QUESTION POSTED AT 28/03/2020 - 12:44 PM

There are iInfinitely many solutions

ANSWERED AT 28/03/2020 - 12:41 PM

QUESTION POSTED AT 28/03/2020 - 12:41 PM

The notation for this is .

Where you should know that

When choosing only one boy and one girl, it becomes simple-ish:

So I would vote for C, hoping I didn't overlook anything...

Where you should know that

When choosing only one boy and one girl, it becomes simple-ish:

So I would vote for C, hoping I didn't overlook anything...

ANSWERED AT 28/03/2020 - 12:41 PM

QUESTION POSTED AT 28/03/2020 - 12:41 PM

Her walk rate is 3.33 meter per sec you find this by dividing meters by seconds

Then you multiply this 3.33 by 50 you get 166.5 meters

d=t3.33 is the equation

Then you multiply this 3.33 by 50 you get 166.5 meters

d=t3.33 is the equation

ANSWERED AT 28/03/2020 - 12:39 PM

QUESTION POSTED AT 28/03/2020 - 12:39 PM

**Answer:**

**32.894 seconds ≈ 33 seconds**

**Step-by-step explanation:**

**Function :**

The function models radioactive decay of krypton-91.

The decay constant k is approximately 0.07.

denotes initial amount .

**We are require to find How long will it take a quantity of krypton-91 to decay to 10% of its original amount**

So, we neet to find t at which

**Taking log both sides **

**Thus it will take 32.894 seconds ≈ 33 seconds a quantity of krypton-91 to decay to 10% of its original amount.**

ANSWERED AT 28/03/2020 - 12:28 PM

QUESTION POSTED AT 28/03/2020 - 12:28 PM

$1,620 to the nearest ten but to the nearest tenth its $1,612.10

ANSWERED AT 28/03/2020 - 12:27 PM

QUESTION POSTED AT 28/03/2020 - 12:27 PM

There is a mistake in your writing

:The similar triangles should be ABE (& not ABD as you stated) & ACD

If so, we can write the following proportion:

AB/AC = BE/CD.

We know that AB =10, BE=4, AC= 10 + BC (BC =12, Given), so AC =22

Plug into the above: 10/22 =4/y===> y= (22 x 4)/10===> y =44/5 =8.8

:The similar triangles should be ABE (& not ABD as you stated) & ACD

If so, we can write the following proportion:

AB/AC = BE/CD.

We know that AB =10, BE=4, AC= 10 + BC (BC =12, Given), so AC =22

Plug into the above: 10/22 =4/y===> y= (22 x 4)/10===> y =44/5 =8.8

ANSWERED AT 28/03/2020 - 12:25 PM

QUESTION POSTED AT 28/03/2020 - 12:25 PM

First quartile is 13

Third quartile is 17.75

Take 17.75 - 13 = 4.75

The IQR is 4.75

Third quartile is 17.75

Take 17.75 - 13 = 4.75

The IQR is 4.75

ANSWERED AT 28/03/2020 - 12:24 PM

QUESTION POSTED AT 28/03/2020 - 12:24 PM

21-15=6

6/15=0.4

0.4=40%

So the percent increase is 40%

Hope this helps!! ^.^

6/15=0.4

0.4=40%

So the percent increase is 40%

Hope this helps!! ^.^

ANSWERED AT 28/03/2020 - 12:24 PM

QUESTION POSTED AT 28/03/2020 - 12:24 PM

If they give you what one variable is, you can plug it into the equation and use algebra to solve it. So:

1)2x=4 -> 4/2 = 2 so x=2

2) y=0

3) x=3

4) 2y + (3*3y) = -15

11y=-15

y = -15/11

5) 4x + 7x + 63 = 19

11x = -44

x = -4

1)2x=4 -> 4/2 = 2 so x=2

2) y=0

3) x=3

4) 2y + (3*3y) = -15

11y=-15

y = -15/11

5) 4x + 7x + 63 = 19

11x = -44

x = -4

ANSWERED AT 28/03/2020 - 12:21 PM

QUESTION POSTED AT 28/03/2020 - 12:21 PM

Factorising quadratic expressions

Multiply these brackets to remind yourself how to factorise.

( x + 2 ) ( x + 5 ) = x2 + 7x + 10( x + 2 ) ( x + 3 ) = x2 + 5x + 6( x - 3 ) ( x - 5 ) = x 2 - 8x + 15( x + 6 ) ( x - 5 ) = x2 + x - 30( x - 6 ) ( x + 5 ) = x2 - x - 30ANSWERED AT 28/03/2020 - 12:20 PM

QUESTION POSTED AT 28/03/2020 - 12:20 PM