Last month I had 8 guppies. This month I have 20 guppies. What is the percent of increase in guppies from last month to this month?

Answer:b-40

Step-by-step explanation:

Answer:

A or/and B

Step-by-step explanation:

in A the hundreds value is 8 and [tex]\frac{8}{10} = 0.8[/tex]

in B he hundreds value is 7 and [tex]\frac{7}{10} =0.7[/tex]

hope this helps you!

Answer:

C. 1.404

Step-by-step explanation:

The 1000ths place is the 1 in 0.01

The 100ths place is the 1 in 0.001

A = 0.881

The number in the 1000ths place is 1

The number in the 100ths place is 8

1/8 is not 1/10

B = 0.722

The number in the 1000ths place is 2

The number in the 100ths place is 2

2/2 is not 1/10

C = 1.404

The number in the 1000ths place is 4

The number in the 100ths place is 0

BUT the numbe rin the 100ths place could also be written as 40, where the 4 from the 40 has moved up a place to 10th

in which case, 4/40 = 1/10

Answer:

three and six hundrend eighty five thousands  grams of gold

Step-by-step explanation:

Answer:

Company C

Step-by-step explanation:

You divide the amount of money it all costs to the number of plushies they are selling it for.

A: 34.08/12 = $2.84 each

B: 42.90/15 = $2.86 each

C: 50.58/18 = $2.81 each

So C has the least amount of money spent for a greater amount of plushies so C would be the Best Buy.

Answer:

-17.38

Step-by-step explanation:

-3.28-(4.4) = -7.6

-7.6+(-9.7) = -17.38

Answer:

Let the number be x.

8 times that number would be 8x, and taking away 18 from it 8x - 18. Knowing the result of doing this is 30, we can write the following equation:

8x - 18 = 30

And solve it. First we pass the -18 to the sight umming:

8x = 30 + 18

8x = 48

Then the 8 which is multiplying to the right dividig:

x = 48/8 = 6

Now we verify we have done it preporly:

8x - 18 = 30

8 * 6 - 18 = 30

48 - 18 = 30 TRUE

Answer:

x =6

Step-by-step explanation:

Translate into algebraic equation =

[tex]8(x)-18= 30\\= 8x-13=30[/tex]

Let's solve for x

[tex]\mathrm{Add\:}18\mathrm{\:to\:both\:sides}\\8x-18+18=30+18[/tex]

Simplify

[tex]8x=48[/tex]

Divide both sides by 8

[tex]\frac{8x}{8}=\frac{48}{8}[/tex]

Simplify

[tex]x =6[/tex]

Mean Absolute Deviation

Think about what each word means.

Just remember to find the mean, then find the deviation, then absolute value, and finally the mean again.

Mean Absolute Deviation.

To find mean absolute deviation, think bacwards.

Answer:

Yes because they are both in the hundredths place

Step-by-step explanation:

ghyc yh fffffjmnnnnnnnnythcgn hyStep-by-step explanation:

vvvv

Answer:

1. The amount of jellyfish attracted ,

2. The type of instrument played ,

3. The guitar attracts the most jellyfish,

4. the results are reliable. there are no big outliers .

The equation (1 + 0.05)x = 7350 to find the actual number of steps you took today will be 7,000.

The quantity of anything is stated as though it were a fraction of a hundred. A quarter of 100 can be used to express the ratio. Per 100 is what the term percent signifies. The symbol ‘%’ is used to symbolize it.

Your fitness tracker overestimates the number of steps you take by 5%. The trackers indicate that you took 7350 steps today.

Let x be the actual number of steps. Then the equation will be given as,

(1 + 0.05)x = 7350

x = 7350 / 1.05

x = 7,000

The actual number of steps you took today will be

(1 + 0.05)x = 7350

x = 7350 / 1.05

x = 7,000

The equation (1 + 0.05)x = 7350 to find the actual number of steps you took today will be 7,000.

More about the percentage link is given below.

https://brainly.com/question/8011401

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Answer: 60.875

Step-by-step explanation:

57+59+60+60+61+61+64+65= 487

then 487/8= 60.875

Answer:

60.5

Step-by-step explanation:

because in 8 options there is no middle instead you put 0 to 8 people, the middle of 1 to 8 is 4.5 then, there is the answer

Answer:

38-11=3x

27=3x

27/3=x

x=9

[tex]38=11+3x[/tex] collect like-terms

[tex]38-11=3x[/tex] subtract

[tex]27=3x[/tex] divide

[tex]x=\frac{27}{9}[/tex]

[tex]x=9[/tex]

plug [tex]x[/tex] in the equation to make sure of the answer

[tex]38=11+3x\\38=11+3(9)\\38=11+27\\38=38[/tex]

The required total balance at the end of the 5 years is given as $1995.

Simple interest is a quick and simple formula for figuring out how much interest will be charged on a loan.

here,
Sue deposited $1,500 into two different accounts. - She deposited $600 into an account that pays 7.5% simple interest. - She deposited $900 into an account that pays 6% compounded annually.

Investment 1,
Amount = P(1 + rt)
Amount = 600(1 + 0.075×5)
Amount = $825

Investment 2,
Amount = P(1 + rt)
Amount = 900(1 + 0.06×5)
Amount = $1170

Total balance = 825 + 1170
Total balance = $1995

Thus, the required total balance at the end of the 5 years is given as $1995.

Learn more about simple interests here:

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Answer:

A. The graph is not a function of x because the line x = 0 intersects the graph at two points.

Step-by-step explanation:

Answer: I think it's "This is not a function because only one amount of plant food remains each day"....let me know if I am wrong though I am not sure.

Answer:

0.2 pounds of milk

0.3 pounds of sugar

1.5 pounds of flour

Step-by-step explanation:

If we have the ratio [tex]2:3:15[/tex], then we know that all of these ingredients together will be [tex]15+3+2=20[/tex]. If we want the whole thing to weight 2 pounds, then the total weight of everything else will be [tex]20\div2=10[/tex] percent of the original.

So,

[tex]2\cdot0.1=0.2\\\\3\cdot0.1=0.3\\\\15\cdot0.1=1.5[/tex]

We can confirm this is correct because [tex]1.5+0.3+0.2=2[/tex].

Hope this helped!

Step-by-step explanation:

Simple formula [tex]\frac{item ratio}{total ratio}[/tex]×total amount

milk powder;  ×2= 0.2 lb

sugar; [tex]\frac{3}{20}[/tex]×2= 0.3 lb

flour; [tex]\frac{15}{20}[/tex]×2= 1.5 lb

To check you can add them up :)

Hope this helps :)

The answers are bold*

Answer: The first step would be to divide 12 by 6.

Step-by-step explanation:

Answer:

Division.

Step-by-step explanation:

There are two rules that you follow. One is PEMDAS, and the other is the     left -> right rule.

Note that PEMDAS =

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

The order of operation is: P , (E & R) , (M & D) , (A & S), parenthesis meaning they can be interchangeable, due to the left -> right rule.

Solve:

First, divide:

12/6 = 2

Next, multiply:

2 x 3 = 6

Finally, add:

6 + 8 = 14

14 is the answer.

the answer is 140000 steps

Answer:

bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbdrtgaethrtththt

Step-by-step explanation:

Answer: the answer is 0.55

Step-by-step explanation:

Answer:

Step-by-step explanation:

B is the independent variable since the amount of times you drink the water is controlled by you.  

I is the dependent variable since it's depending on how much water you're drinking

Answer:The equation of the line is 9x-5y=9

5y=9x-9

y=9/5x-9/5

Comparing with y=mx+c we get slope m=9/5

Slope of a line parallel to this line=9/5

Slope of a line perpendicular to this line=-5/9

Step-by-step explanation:

Answer:

Step-by-step explanation:

y=a(x-h)^2+k

-12=a(1-h)^2+k

16=a(3-h)^2+k

subtract

a(3-h)^2-a(1-h)^2=28

a[(3-h)^2-(1-h)^2]=28

a=2

2[(3-h)^2-(1-h)^2]=28

(3-h)^2-(1-h)^2=14

9+h^2-6h-(1+h^2-2h)=14

9+h^2-6h-1-h^2+2h=14

-4h+8=14

-4h=6

h=-3/2

16=2(3+3/2)^2+k

16=2×81/4+k

k=16-81/2=-49/2

so y=2(x+3/2)²-49/2

Answer: y=a(x-h)^2+k

-12=a(1-h)^2+k

16=a(3-h)^2+k

subtract

a(3-h)^2-a(1-h)^2=28

a[(3-h)^2-(1-h)^2]=28

a=2

2[(3-h)^2-(1-h)^2]=28

(3-h)^2-(1-h)^2=14

9+h^2-6h-(1+h^2-2h)=14

9+h^2-6h-1-h^2+2h=14

-4h+8=14

-4h=6

h=-3/2

16=2(3+3/2)^2+k

16=2×81/4+k

k=16-81/2=-49/2

so y=2(x+3/2)²-49/2

Step-by-step explanation:

Answer:

[tex]f(x)=9(x+\frac{1}{6})^2-\frac{21}{4}[/tex]

Step-by-step explanation:

So, we need to find the equation of a parabolic function that goes through the points (-3,67) and (-1,1) and has a stretch factor of 9.

In other words, we want to find a quadratic with a vertical stretch of 9 that goes through the points (-3,67) and (-1,1).

To do so, we first need to write some equations. Let's use the vertex form of the quadratic equation. The vertex form is:

[tex]f(x)=a(x-h)^2+k[/tex]

Where a is the leading coefficient and (h,k) is the vertex.

Since a is the leading coefficient, it's also our stretch factor. Thus, let a equal 9.

Also, we have two points. We can interpret them as functions. In other words, (-3,67) means that f(-3) equals 67 and (-1,1) means that f(-1) equals 1. Write the two equations:

[tex]f(x)=a(x-h)^2+k\\f(-3)=67=9((-3)-h)^2+k[/tex]

And:

[tex]f(x)=a(x-h)^2+k\\f(-1)=1=9((-1)-h)^2+k[/tex]

Now, we essentially have a system of equations. Thus, to find the original equation, we just need to solve for the vertex. To do so, first isolate the k term in the second equation:

[tex]1=9(-1-h)^2+k\\k=1-9(-1-h)^2[/tex]

Now, substitute this value to the first equation:

[tex]67=9(-3-h)^2+k\\67=9(-3-h)^2+(1-9(-1-h)^2)[/tex]

And now, we just have to simplify.

First, from each of the square, factor out a negative 1:

[tex]67=9((-1)(h+3))^2+(1-9(((-1)(h+1))^2)[/tex]

Power of a product property:

[tex]67=9((-1)^2(h+3)^2)+(1-9((-1)^2(h+1)^2))[/tex]

The square of -1 is positive 1. Thus, we can ignore them:

[tex]67=9(h+3)^2+(1-9(h+1)^2)[/tex]

Square them. Use the trinomial pattern:

[tex]67=9(h^2+6h+9)+(1-9(h^2+2h+1))[/tex]

Distribute:

[tex]67=(9h^2+54h+81)+(1-9h^2-18h-9)[/tex]

Combine like terms:

[tex]67=(9h^2-9h^2)+(54h-18h)+(81+1-9)[/tex]

The first set cancels. Simplify the second and third:

[tex]67=36h+73[/tex]

Subtract 73 from both sides. The right cancels:

[tex]67-73=36h+73-73\\36h=-6[/tex]

Divide both sides by 36:

[tex](36h)/36=(-6)/36\\h=-1/6[/tex]

Therefore, h is -1/6.

Now, plug this back into the equation we isolated to solve for k:

[tex]k=1-9(-1-h)^2[/tex]

First, remove the negative by simplifying:

[tex]k=1-9((-1)(h+1))^2\\k=1-9((-1)^2(h+1)^2)\\k=1-9(h+1)^2[/tex]

Plug in -1/6 for h:

[tex]k=1-9(-\frac{1}{6}+1)^2[/tex]

Add. Make 1 into 6/6:

[tex]k=1-9(-\frac{1}{6}+\frac{6}{6})^2\\ k=1-9(\frac{5}{6})^2[/tex]

Square:

[tex]k=1-9(\frac{25}{36})[/tex]

Multiply. Note that 36 is 9 times 4:

[tex]k=1-9(\frac{25}{9\cdot4})\\ k=1-\frac{25}{4}[/tex]

Convert 1 into 4/4 and subtract:

[tex]k=\frac{4}{4}-\frac{25}{4}\\ k=-\frac{21}{4}[/tex]

So, the vertex is (-1/6, -21/4).

Now, plug everything back into the very original equation with 9 as a:

[tex]f(x)=a(x-h)^2+k\\f(x)=9(x+\frac{1}{6})^2-\frac{21}{4}[/tex]

And this is our answer :)

Answer:

A: 5

Step-by-step explanation:

4x + y = 17 --> y = 17 - 4x

5x + 2y = 22

<=> 5x + 2 . (17 - 4x) = 22

<=> 5x - 8x + 34 = 22

<=> 34 - 3x = 22

<=> 3x = 34 - 22 = 12

<=> x = 4

y = 17 - 4x = 17 - 4 . 4 = 17 - 16 = 1

So, x + y = 4 + 1 = 5

Answer: A. 5

Answer:

abcdefghijklmnopqrstuvwxyz

Answer:

104% ~1.04 b.)2.65 c.) -0.6 d.)-.01

Answer. -1, 3/-5, 104%, v7

Answer:2 and a half cups of sugar

Step-by-step explanation:

1/4*10

Answer:

Step-by-step explanation:

4.

distance=2436-(-1020)=2436+1020=3456 ft

5.

in two turns points=3-4=-1

in 6 turns=-1/2×6=-3 points

6.

-23+40=17

she had 17 dollars balance.

Answer:

5 -3

Step-by-step explanation: