A mermaid has a terrarium that measures 42 inches × 10 inches × 9 inches. She also has a box that measures 3 inches × 3 inches × 3 inches. Every minute, the mermaid fills the box with sand from her backyard and then pours the sand into the terrarium. How many minutes does it take the mermaid to fill three-quarters of the terrarium with sand?

Answer:

66 coolers

Step-by-step explanation:

C = 0.005x² - 0.3x + 17

When C = $19

19 = 0.005x² - 0.3x + 17

19 - 17 = 0.005x² - 0.3x

2 = 0.005x² - 0.3x

0.005x² - 0.3x - 2 = 0

x = -b ± √b² - 4ac / 2a

= -(-0.3) ± √-0.3² - 4*0.005*-2 / 2*0.005

= 0.3 ± √ 0.09 - (-0.04) / 0.01

= 0.3 ± √ 0.09 + 0.04 / 0.01

= 0.3 ± √ 0.13 / 0.01

= 0.3/0.01 ± √0.13/0.01

= 30 ± 0.36/0.01

x = 30 ± 36

x = 30 + 36 or 30 - 36

x = 66 or -6

Number of coolers can not be negative

Therefore, number of coolers produced when the cost is $19

is 66 coolers

Answer:

9/16

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

4,4,5,6,6,7,7,9 line them up from least to greatest then find the middle number

since 2 sixes are in the middle add them together and divide by 2 normally but these numbers are equal so the median is 6

Answer below ↓

Mean x¯¯¯ 6

Median x˜ 6

Mode 7, 4, 6

Hope this helps

Answer:

240 is the awnser hope i helped

Step-by-step explanation:

Answer:

[tex]z=133/6[/tex]

Step-by-step explanation:

All angles in a triangle added up are equal to 180 degrees.

We can make the equation:

[tex]2z+4z+47=180\\6z+47=180\\6z=133\\z=133/6[/tex]

Answer:

Step-by-step explanation:

We have 3 angles, 2z, 4z, 42

the sum of these angles equal to 180

2z+4z+42=180

6z=180-42

6z=138

z=138/6=23

z=23

Answer:

178

Step-by-step explanation:

Answer:

178

Step-by-step explanation:

I answered this so the other girl* can get the brainliest he deserves.

Answer:

The car travelled an average speed of 80 km/h.

Step-by-step explanation:

Distance travelled by the car = 160 km

Time taken by the car = 2 hours.

Average speed =?

Average speed = Distance/Time

Average speed = 160/2

Average speed = 80 km/h

The car travelled an average speed of 80 km/h.

Answer: $6,178

Step-by-step explanation:

176,500 x 3.5%

3.5% = .035

176,500 x .035 = 6,177.5

$6,177.5 rounded = $6,178

Answer:

Maths = 120

English = 84

Hindi = 63

Step-by-step explanation:

First, solve for Maths since the others require that answer.

Using decimals, 80% of 150 can be written as 0.8 x 150 = x (where x is 80% of 150).

0.8 x 150 = x

120 = x

Since you know the score for maths, you can find the score for english, which is 70% of 120.

0.7 x 120 = y

84 = y

Since you now have the score for English too, that can be used to find the score for Hindi, which is 75% of the English score (84)

0.75 x 84 = z

63 = z

Answer:

A prism is a solid figure that has two parallel congruent sides that are called bases that are connected by the lateral faces that are parallelograms. ... A cylinder is a tube and is composed of two parallel congruent circles and a rectangle which base is the circumference of the circle.

Step-by-step explanation:

Please give thanks to all my answers and please mark as brilliant and please follow me

Answer:

C.

Step-by-step explanation:

Answer:

420÷70=6

6×100= 600

Step-by-step explanation:

not sure if it's correct tho

Answer:

[tex]12\pi in[/tex]

Step-by-step explanation:

We are given that

Area of circle=[tex]36\pi in^2[/tex]

We have to find the circumference of circle in inches.

We know that

Area of circle=[tex]\pi r^2[/tex]

Using the formula

[tex]36\pi=\pi r^2[/tex]

[tex]r^2=36[/tex]

[tex]r=\sqrt{36}=6[/tex] in

Circumference of circle=[tex]2\pi r[/tex]

Using the formula

Circumference of circle=[tex]2\pi (6)=12\pi in[/tex]

Hence, the circumference of circle=[tex]12\pi in[/tex]

Answer:

wouldent that be C?

Step-by-step explanation:

Probability of yellow disk will be selected is  [tex]\frac{4}{5}[/tex]. probability [tex]\frac{5}{25}[/tex] that a yellow disk will be randomly selected from the bag.

Probability is simply how likely something is to happen. Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are.

Given

n(S) = 25

a. Probability of yellow disk will be selected is O is

n(E) = 25 - 5 = 20

P(E) = [tex]\frac{n(E)}{n(S)}[/tex] =  [tex]\frac{20}{25}[/tex] = [tex]\frac{4}{5}[/tex]

b. It is the probability [tex]\frac{5}{25}[/tex] that a yellow disk will be randomly selected from the bag.

Hence, Probability of yellow disk will be selected is  [tex]\frac{4}{5}[/tex]. probability [tex]\frac{5}{25}[/tex] that a yellow disk will be randomly selected from the bag.

Find out more information about probability here

https://brainly.com/question/11234923

#SPJ3

Answer:

James has 7 20p coins.

Step-by-step explanation:

£2.00

- 50p

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

£1.50

- 10p

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

£1.40

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

140/20

14/2

7 (20p)

Answer:

c

Step-by-step explanation:

if you use the Pythagorean Theorem and take the sum of the square of the legs, it will equal the square of the hypotenuse in answer (c)

8² + 6² = 10²

64 + 36 = 100

100 = 100

Answer:

Step-by-step explanation:

C

Answer:

Step 1 is incorrect

3x +15= 2x+35

Answer: step 2

Step-by-step explanation:

Cuz the opposite of addition is subtraction so they should ve subtracted -2x from both sides and not add.

Answer:

⦣ACB = 76º

Step-by-step explanation:

⦣DCB = ⦣BAD because one of the rules of a parallelogram is that opposite angles are equal

⦣BAD = 76º so ⦣ACB = 76º

Answer:

32, 47, x+17, 43

Step-by-step explanation:

just add or subtract by 17

Answer:

Reflect across the y-axis. Then, translate 7 units up.

Answer:

its b or c ( im not for sure tho)

Step-by-step explanation:

Answer:

A)  [tex](a+b)^{2}- \sqrt[3]{x . 3y}[/tex]

B) 20 x + 500 y

Step-by-step explanation:

A. Subtract the cube root of the product of x and 3y from the square of the sum of a and b.  

A = The square of the sum of a and b is  [tex](a+b)^{2}[/tex]

B = The cube root of the product of x and 3y is  [tex]\sqrt[3]{x . 3y}[/tex]

They want us to subtract B from A so B - A, therefore the following.

[tex](a+b)^{2}- \sqrt[3]{x . 3y}[/tex]

B. The total value of x 20-cent coins and y 5-dollar notes in cents.

20x cents is already provided as they want the expression in cents. Moving on to the $5 dollar note. We will have to convert this $5 into cents in order to fulfill the question requirements.

Convert:

1 dollar = 100 cents

5 dollars = 100x5 = 500 cents

Therefore, 5y dollars = 500y cents. Finally, we end up with the following answer.

20 x cents + 500 y cents

20 x + 500 y

Answer:

0.32

Step-by-step explanation:

1.60/4=0.04

0.04*8+=0.32

Answer:

y = x + 8

Step-by-step explanation:

Answer:

To determine if a point is on a line you can simply subsitute the x and y coordinates into the equation. Another way to solve the problem would be to graph the line and see if it falls on the line. Plugging in will give which is a true statement, so it is on the line.

Step-by-step explanation:

Off the inter net... sorry

Answer:

its easy solve it with calculator

Step-by-step explanation:

Answer:

hopes this helps

Step-by-step explanation:

First, put the equation of the line given into slope-intercept form by solving for y. You get y = -2x +5, so the slope is –2. Perpendicular lines have opposite-reciprocal slopes, so the slope of the line we want to find is 1/2. Plugging in the point given into the equation y = 1/2x + b and solving for b, we get b = 6.

Answer:

Step-by-step explanation:

(0,3)  (3, 5)

(5-3)/(3-0)= 2/3

y - 3 = 2/3(x - 0)

y - 3 = 2/3x - 0

y = 2/3x + 3