HELPP PLZZZZZZZZZ!!!

Answer:

150 minutes

Step-by-step explanation:

P.S - The exact question is -

Given - This is the pond in a shape of a prism, it is completely full of

             water. Colin uses a pump to empty the pond. The level goes

             down by 20 cm in the first 30 min.

To find - Work put how many minutes Colin has to wait for the pond

               to completely empty.

Proof -

Given that,

Height of prism = 1 m

Also,

Base of the prism is trapezium and

Sides of the trapezium are 0.6 m and 1.4 m

Height of trapezium is 2 m

We know that,

Area of trapezium = [tex]\frac{1}{2}[/tex]× (sum of sides)× height

                             =  [tex]\frac{1}{2}[/tex]× (0.6 + 1.4)× 2

                             =  [tex]\frac{1}{2}[/tex]× (2)× 2

                             =  2 m²

⇒Area of trapezium = 2 m²

Now,

Volume of prism = Area of trapezium × height of prism

                          = 2 m² × 1 m

                          = 2 m³

⇒Volume of prism = 2 m³

Now,

Given that the level goes down by 20 cm in the first 30 min

We know

100 cm = 1 m

⇒1 cm = [tex]\frac{1}{100} m[/tex] = 0.01 m

⇒20 cm = 20×0.01 m = 0.2 m

⇒The level goes down by 0.2 m in the first 30 min.

Also,

we know that height of water = height of prism = 1 m

So, the remaining water left in the pond = 1 m - 0.2 m = 0.8 m

Also,

Volume of Remaining water = Area of trapezium × height

                                           = 2 m² × 0.8 m

                                           = 1.6 m³

⇒Volume of Remaining water = 1.6 m³

Now,

Volume of emptied water = Total Volume - Volume of Remaining water

                                       = 2 m³ - 1.6 m³

                                       = 0.4 m³

⇒Volume of emptied water = 0.4 m³

Now,

0.4 m³ water will be empty in 30 minutes

⇒ 1 m³ water will be empty in [tex]\frac{30}{0.4}[/tex] = 75 minutes

⇒1.6 m³ water will be empty in 1.6 × 75 = 120 minutes

∴ we get

The remaining water is empty in 120 minutes

So,

Total pond is empty in 120 + 30 minutes

⇒Total pond is empty in 150 minutes

Answer: 2

Step-by-step explanation: This was very hard and I think i should deserve a million dollars for it

Answer:

rise over run 2/10 siplified 1/5

Step-by-step explanation:

Answer:

the answer is :)

Step-by-step explanation:

Answer:

D because the triangle has to be congruent

Answer:

3 1/2

Step-by-step explanation:

The total number of flour needed to make a batch of 212 if one batch calls for 234 cups of flour would be equal to 49608.

The fundamental concept of making the same number of additions repeatedly is represented by the action of multiplication. The results of multiplying two or more integers are known as the products, and the factors that are used in the multiplication are referred to as the factors.

Given that the recipe for one batch of dough calls for 234 cups of flour, Thomas is making 212 batches of the recipe,

We need to Calculate the number of cups of flour.

Thus the number of cups of flour = 234 × 212

The number of cups of flour = 49608

So, we have the total number of flour needed is 49608.

To know more about multiplication:

brainly.com/question/1135170

#SPJ4

The complete question is

The recipe for one batch of dough calls for 234 cups of flour. thomas is making 212 batches of the recipe. how many cups of flour does he need? express your answer as a mixed number.

Answer:

The answer is D) The car travels 53 mph(Miles Per Hours).

212/4 = 53

318/6 = 53

424/8 = 53

530/10 = 53

Step-by-step explanation:

Answer:

C)  rate of change is 53, your car travels 53 miles every 1 hour .

Step-by-step explanation:

Given : Table for time and distance.

To Find : The rate of change is constant in each table. Find the rate of change. Explain what the rate of change means for the situation.

Solution : We have given that Table for time and distance.

rate  of  change= (change in y)/(change in x) .

rate  of  change=(212)/(4) .

rate of change =  53.

rate  of  change= (318)/(6).

rate of change =  53

rate of change =  (424)/(8).

rate of change =  53.

rate of change =  (530)/(10) .

rate of change =  53.

Therefore, C)  rate of change is 53, your car travels 53 miles every 1 hour .

Answer: D

Step-by-step explanation: You need to divide the figure into 2 parts. You need to ignore 13 m And use the other numbers. Figure A is 9x3x4 and Figure B is 7x4x4 because the other 4 is at the bottom. I hope this helps. Good luck!

Answer:

33

Step-by-step explanation:

The pattern is y = 5x + 8.

So, plugging in 5 for x gives you y = 5(5) + 8 = 33.

Answer:

Basic Of Algebra. Basics of Algebra cover the simple operation of mathematics like addition, subtraction, multiplication, and division involving both constant as well as variables. For example, x+10 = 0. This introduces an important algebraic concept known as equations.Step-by-step explanation:

Answer:

The other person is correct. She didn't correctly distribute 3 to -10. The result would have been 3x - 30 instead of 3x + 30. If you multiply a positive number by a negative number, the answer will be negative. :)

Answer:

24

Step-by-step explanation:

girls:boys = 4:2

12 = 6 x 2

so

girls = 6 x 4 = 24

and lets simplify to check

24:12 = 24/6:12/6 = 4:2

Answer:

Yes they are the same

Step-by-step explanation:

So we have 10mph, If you stay at that speed for another 2 hours you will reach 30 miles. If you still don't understand please don't hesitate to ask for help.

Answer: Yes they are.

Step-by-step explanation:

If you simplify 30 and 3 by 3 they equal 10/1. if you simplify 10 and 1 by 1 you get 10/1

Answer:

sin32°

Step-by-step explanation:

Using the cofunction identity

cosx = sin(90 - x) , then

cos58° = sin(90 - 58)° = sin32°

Answer:

5/6 of his yard

Step-by-step explanation: 1/3+3/6=5/6

Answer:

B

Step-by-step explanation:

Logs are very useful when quantities are large.  By far the largest quantities here are distances from Earth to other planets, galaxies and so on.  B

Answer:

the answer is #4 because the quadrant 1 starts at the top right and it goes counterclockwise

Step-by-step explanation:

Answer:

first- the pre-image is congruent to the image

sec-rotated 90

Step-by-step explanation:

Answer:

(1) 10x + 40

Step-by-step explanation:

5(2x+8)

= 5×2x + 5×8

= 10x + 40 (Ans)

Answer:

ok

Step-by-step explanation:

Answer:

alright lol

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

rectangle: 12*6 = 72

triangle: 6*6/2 = 18

added together: 72+18 = 90 lol

Answer:

m=7

9

Step-by-step explanation:

10-3

10-1 answer 7/9

Answer:

The answer is "25 in"

Step-by-step explanation:

Please find the complete question in the attached file:

Given:

[tex]\to AB= 7 \ in \\\\\to BC= 24 \ in \\\\ \to AC=?[/tex]

Using the Pythagorean theorem:

[tex]\to AC^2=AB^2+BC^2\\\\[/tex]

[tex]\to AC^2=7^2+24^2\\\\\to AC^2=49+576\\\\\to AC^2=625\\\\\to AC= 25\\[/tex]

Answer:

The unknown measures of one triangle are about

✔ A = 103°, B = 42°, a = 27.4.

The unknown measures of the other triangle are about

✔ A = 7°, B = 138°, a = 3.4.

Step-by-step explanation:

copy / pasted from edge, if not correct lmk!!!

Answer:

4 in.

Step-by-step explanation:

length times width = area

actually im not really sure lol. we havent done this in a while

Answer: See explanation

Step-by-step explanation:

We are going to solve this by using the Simple interest formula which is:

= Principal × Rate × Time

= 500 × 3% × 8/12

= 500 × 0.03 × 2/3

= 10

Therefore, the interest will be $10 ane the total amount that'll be paid back will be:= $500 + $10 = $510

Answer:

1. Greatest Common Factor

2. Fraction

3. Simplest Form

Step-by-step explanation:

Answer:

function:

graph and table A and B

not function:

mapping A and B

Answer:

j-10=35

Step-by-step explanation:

10 less than j means j-10 is 35

=> j-10=35

Answer:

f-10=35 thus meaning f=45

Step-by-step explanation:

f - 10 = 35

 +10   +10

    f=45

Hope you find this usefull

-Aj-;)

Answer:

65 degrees Fahrenheit

Step-by-step explanation:

47 - (-18) = 65

Answer: I believe it is 65

Answer:

(3) equal slopes; equal y-intercepts

Answer:

I think it's A because if two distinct are parallel the slopes of the line are equal.Vertical line will not be considered since there slopes are undefined and cannot be considered equal

Answer: 2/3>0.44444444

Step-by-step explanation:

Answer:

<0.4

Step-by-step explanation:

subtract 1 from the number and see which number is greater