3 of 10 fish in the pond had spots. If there are 300 total fish, how many have spots?

Answers

Answer 1

Answer:

90 fish have spots

Step-by-step explanation:

cross multiply and divide:

3 x 300 = 900

900 ÷ 10 = 90

Answer 2

Answer:90

Step-by-step explanation:

3/10 = x/300

cross multiply

10x= 900

divide by 10

x= 90


Related Questions

Find the volume of the cone.
12 cm
r = 8 cm
V = [?] cm3
Round to the nearest tenth.
Enter

Answers

Answer:

V = 803.8 cm^3

Step-by-step explanation:

h = 12cm

r = 8cm

V = [tex]\frac{1}{3}[/tex] [tex]\pi[/tex][tex]r^{2}[/tex]h

V =  [tex]\frac{1}{3}[/tex] [tex]\pi[/tex][tex](8)^{2}[/tex] (12)

V = 4 [tex]\pi[/tex] (64)

V = 803.84

Answer:

800

Step-by-step explanation:

[tex]V=\pi r^{2} \frac{h}{3}[/tex]

[tex]V=\pi 8^{2} \frac{12}{3} \\V=\pi (64)(4) = 256\pi[/tex]

256π = 804.247719319

To the nearest tenth: 800

Please help me, the booklet says that the answer is $620, but I need working out

Answers

Given details :

The selling price of a chandelier is $899The profit gained js 45%

To find :

The cost price / Wholesale price

Solution :

We know that CP is ,

[tex]\sf\implies\:CP\:=\:\dfrac{100}{100\:+\:P\%}\:\times\:SP[/tex]

Put the values in the formula ,

[tex]\sf\implies\:CP\:=\:\dfrac{100}{100\:+\:45\%}\:\times\:899[/tex]

[tex]\sf\implies\:CP\:=\:\dfrac{100}{145}\:\times\:899[/tex]

Simplify 899 with 145 that gives us 6.2

[tex]\sf\implies\::\:CP\:=\:100\:\times\:6.2[/tex]

CP = $620

Which of these is not a possible r-value?

A. -0.75

B. 1.2

C. 0.5

D. -0.1

Answers

Answer:b 1.2

Step-by-step explanation:

someone help me with this table !!!!!!!


*40 people responded that they use mouthwash.

*Of the people who use mouthwash, 30 people use floss.

*55 people responded that they do not floss.

*45 people responded that they don't floss and don't use mouthwash

Answers

Answer:  The image of the completed table is shown below

In the completed table, we have the following values (left to right)

Row One: 30, 10, 40Row Two: 15, 45, 60Row Three: 45, 55, 100

==============================================

Explanation:

We're told that "40 people responded that they use mouthwash". That means we'll write "40" at the very end of the "use mouthwash" row. This represents the total number of people who use mouthwash, since we're underneath the "total" in that far right column.

Then we're further told that "Of the people who use mouthwash, 30 people use floss", so we'll write "30" in the first row, first column blank space. These are the people who both floss and use mouthwash. Because earlier we know 40 people use mouthwash overall, this leaves 40-30 = 10 people who use mouthwash, but they don't floss.

To summarize so far: In row 1, we have the following values from left to right: 30, 10, 40

The first two items of this row must add to the last item.

---------------------

Now onto row 2

Since 40 people use mouthwash, and 100 people were surveyed, this means that 100-40 = 60 people do not use mouthwash.  The value 60 goes at the very end of row 2. This represents another total.

Like earlier, the first two items must add to the last. So 40+60 = 100.

Now turn to the fact that "45 people responded that they don't floss and don't use mouthwash". This tells us that "45" will be in the "no mouthwash" row and "don't floss" column.

We have 60 people who don't use mouthwash, and 45 of those people also don't floss. Therefore, 60-45 = 15 people do floss but they don't use mouthwash. We'll write "15" in the second row, first column.

Along row 2, we have the following values: 15, 45, 60

----------------------

Row 3

For each column, add up the first two items to get the third one. This will lead to the totals along this bottom row.

Floss: 30+15 = 45Don't Floss: 10+45 = 55 .... note how this matches up with the third piece of information your teacher provided

The third column is already done, but again we can see that 40+60 = 100.

Furthermore, the first two items of the third row add to 45+55 = 100 which helps confirm our answers.

The full completed table is shown below.

------------------------

To summarize, we are effectively just sorting the values given to us to write them into the table. Then we use a bit of algebraic detective work to find out what values are missing so we fill out the completed table.

PLSSSSSS HELPPPP IT MATH I REALLY NEEED HELPPPP PLSSS 25 POINTSSS




Select all the prisms.

For each prism, shade one of its bases.

Answers

Answer:

I honestly dont know, im sorry ill try and figure it out

Step-by-step explanation:

Answer:

b, c, d

Step-by-step explanation:

the base at b is at the top; hexagon, for c, its the triangle, also at the top, for d it's the triangle on the side

Re-write the quadratic function below in Standard Form
y = -2(x + 2)2 – 3

Answers

Answer:

[tex]x = - \frac{11}{4} \\ x = - 2 \frac{3}{4} .x = - 2.75[/tex]

brainiest please

Find the common ratio of the geometric sequence 6, 48, 384, ...​

Answers

Answer:

r = 8

Step-by-step explanation:

The common ratio r of a geometric sequence is

r = [tex]\frac{a_{2} }{a_{1} }[/tex] = [tex]\frac{a_{3} }{a_{2} }[/tex] = ..... = [tex]\frac{a_{n} }{a_{n-1} }[/tex]

Then

r = [tex]\frac{48}{6}[/tex] = [tex]\frac{384}{48}[/tex] = 8

Ramesh lent a loan of rs 1800 to suresh at a simple rate of interest for 2 years. At the end of period. suresh returned him total of rs 2232.At what rate of interest had ramesh lent the loan​

Answers

Answer:

The rate is 12%

Step-by-step explanation:

Minus the loan from the amount. That will be your interest then use the formula: interest = principle(loan) ×rate ×time ÷ 100 to get the rate

Simplify: x + 2y - 3z + 4x – 5y + 6z

Answers

Answer:

x+4x+2y-5y-3z+6z

5x-3y3z

Park rangers in Yosemite estimated the number of racoons in one hiking area. The rangers tagged 15 racoons in the hiking area. The following week they captured 40 racoons. If the park rangers estimated there were 75 in the area, how many of the captured racoons were tagged.

Answers

Answer:

8

Step-by-step explanation:

15 of 75 estimated raccoons in the area were tagged. So think of this as a ratio, 15:75.

Divide 75 by the 40 racoons that were captured and you get 1.87500. 75 divided by 1.87500 is the 40 raccoons captured. So 15 divided by the same amount is the number of raccoons with tags. Divide 15 by 1.87500 to find the missing value, which is 8.

hello please help i’ll give brainliest

Answers

Answer:

its  C

Step-by-step explanation:

srry if im wrong:(

Someone please help!! I’ll give brainliest!!

Answers

Answer:

V = 200.96 m^3

Step-by-step explanation:

V=1/3hπr²

h=12, r=4

V = 1/3 (12) (3.14) (4^2)

V = 1/3 (12) (3.14) (16)

V = 200.96 m^3

Answer:

602.88m³

Step-by-step explanation:

volume = base area x height

            = πr²x h

            = (3.14)(4)² x 12

            =602.88

What is a fraction equivalent to the mixed number 3 3/4

Answers

Answer:

15/4

Step-by-step explanation:

Answer:

15/4

Step-by-step explanation:

Snow Crest is 11,508.21 feet higher than Mt. Wilson. Write and solve an equation to find the elevation of Mt. Wilson. Let x represent the elevation of Mt. Wilson. The equation to find the elevation of Mt. Wilson is ____-x=_______. The elevation of Mt. Wilson is _______ feet.

Answers

Answer:

16642.1 feets

Step-by-step explanation:

Given :

Elevation of Mt. Wilson = x

If the elevation of snow crest = y

Snow crest = 11,508.21 feet higher than Mt. Wilson

Hence, y = 11,508.21 + x

The elevation of Mt. Wilson, x = y - 11,508.21  feets

From the table, elevation of Snow crest = 28,150.31 feets = y

Hence, The elevation of Mt. Wilson, x = y - 11,508.21  feets

x = 28,150.31 - 11,508.21

x = 16642.1 feets

HELP NEEDED ASAP


Coach Jackson measured the height of each player on the Springfield Middle School volleyball
team.
Volleyball players' heights (in.)
56
60
64
54
58
62
What is the range of the players' heights?
inches

Answers

Range: 63-55= 8
So the range is 8!

HELP PLEASE WILL LEAVE GOOD RATING

Answers

Answer: s = 16

Step-by-step explanation:

234 = (s+2)(s-3)

s = 16, -15 (throw away -15, measurements cannot be negative)

This can be proven by substituting s for 16

234 = (16+2)(16-3)

234 = 18*13

234= 234

Hope this helps! Pls give brainliest :)

Write an equation in slope intercept form of the line shown (1,-3) (3,1)

Answers

Answer:

y = 2x - 5

Step-by-step explanation:

Using the slope intercept formula y2 - y1 / x2 -x1...

You get a slope of 2 so y = 2x +b

Then to find b the intercept, you plug in one of the coordinates like so...

1 = 2(3) + b

Then solve to get an intercept of -5.

So the slope-intercept form would be...

y = 2x - 5

the equation s = p - 0.15 represents the sale price s of an item with an original price p, after a 15% discount. A T-shirt costs $12. What is the sale price?

Answers

Answer:

S = $10.20

Step-by-step explanation:

s = 12 - .15 (12)

s = 12 - 1.80

s = $10.20

If 15% comes off the price, then 85% of the price is left to pay. (100 - 15 = 85)

12 x .85 = $10.20

12. In this question you will get no marks if you work out the answer through
scale

NOT TO SCALE

Answers

Answer:

it is 7.5km

Step-by-step explanation:

This is because it is a right angle triangle (dotted lines) so the straight long line is the same length as the diagonal line.


A 120-centimeter-long board is cut into two pieces. One piece is 5 times as long as the other piece.
What is the length of the longer piece of the board? Enter the answer in the box.

Answers

the long piece of the board is 100 cm and the shorter board is 20. you can solve this by dividing 120 by 6 since u need to have a piece that is 5x a piece which is a total of 6 pieces. Then multiply that number by 5 and that is your longest board.

Fill in the blanks below.
Find the slope of the line passing through the points (-2,3) and (-2, -1).
slope:


Find the slope of the line passing through the points (-6, -3) and (3, -3).
slope:

Answers

Answer:

-4/0, and 0/9

Step-by-step explanation:

slope formula

Katie’s race sponsor is playing $10 for every mile she walks and $100 for finishing an 8-mile race. Which strategy can be used to determine the total amount of money she raised if she completes the race?

Answers

It would be x as in miles and then do 10x+100= 180

4/x+3/x=14 A. 2 B. -2 C. 1/2 D. 3/7 E. 1/4​

Answers

Answer:

A. 2

you add 4x + 3x gives you 7x

then you divide by 7 on each side

7 divided by 7x is x

and 7 divided by 14 is 2

If 1 millimeter represents 100 kilometers on a map, then 380 kilometers will
be represented by

Answers

3.8 mm, you can multiply 3.8 by 100 and get 380 km

URGENT HELP

The nth term of a sequence is given 3n-16. What’s the value of the 9th term?

Answers

Answer:

a₉ = 11

Step-by-step explanation:

Substitute n = 9 into the nth term formula, that is

a₉ = 3(9) - 16 = 27 - 16 = 11

What is the value of 1/4 x 5/9?

Answers

Answer:

5/36

Step-by-step explanation:

1x5=5

4x9=36

Answer:

Simplify the expression.

5x/36

Step-by-step explanation:

3. Solve the missing value:
148 +261 +
=672-384 + 192​

Answers

Answer:

x=71

Step-by-step explanation:

409+x=480

x=480-409

x=71

Answer:

x=263

Step-by-step explanation:

261+148=409

409+x=672

x=672-409

x263

Una camisa me costo $10.500, con lo que gaste el 25% de mi dinero ¿cuanto dinero tenia? (puede ir con desarrollo)

Answers

Answer:

the money i have is $42,000

Step-by-step explanation:

Given that

The cost of the shirt is $10,500

And, it would be spend 25% of the money

So based on this, the amount of money at the time before purchasing is

= $10,500 × 100 ÷ 25

= $42,000

Hence, the money i have is $42,000

The same would be considered and relevant

what is the answer for 16 + b = a

Answers

Answer:

16

Step-by-step explanation:

i hope this helps

Gabriella plays video games from 2:49 P.M. To 3:32 P.M. Mason plays video games for 35 minutes. How many minutes longer does Gabriella play video games than Mason? *

Answers

Answer:

Mizuki here to help!

8 minutes longer will be the correct answer!

Step-by-step explanation:

First, let's find out how many minutes Gabriella played:

3:32 - 2:49 = 2:92 - 2:49 = 0:43

Check:

2:49 + 0:43 = 2:92 = 3:32

It's correct so...

43 - 35 = 8

Hope this helped!

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