All categories

3 years ago

A 20.5 gallon fish tank is 4/5 full. how many more gallons will it take to fill the tank

Mathematics

2 answers:

Over [174]3 years ago

8 0

Answer:

4.1

Step-by-step explanation:

(4/5) * 20.5 = 16.4

20.5 - 16.4 = 4.1

marta [7]3 years ago

8 0

Answer: The required number of extra gallons needed is 5.125.

Step-by-step explanation: Given that a 20.5 gallon fish tank is $\dfrac{4}{5}$ full.

We are to find the number of more gallons that are needed to fill the tank.

We will be using the UNITARY method to solve the problem.

We have

Number of gallons needed to fill $\dfrac{4}{5}$ of the tank = 20.5.

So, the number of gallons needed to fill the complete tank is given by

$\dfrac{20.5}{\frac{4}{5}}=20.5\times\dfrac{5}{4}=25.625.$

Therefore, the extra gallons needed to fill the tank is

$25.625-20.5=5.125.$

Thus, the required number of extra gallons needed is 5.125.

You might be interested in

Does anyone know the missing leg of the length?

n200080 [17]

Answer:

Hello! answer: 16

Step-by-step explanation:

These are a bit different instead your solving for B so you have to work backwords so... 20 × 20 = 400 12 × 12 = 144 400 - 144 = 256 now we just find out what multiplied by itself = 256 16 × 16 = 256 therefore b = 16 Hope that helps!

5 0

3 years ago

Read 2 more answers

Match them together to correct answer

Verizon [17]

ANSWER

Frequency=2

Midline =3

Amplitude =5

Period =π

EXPLANATION

We have:

$f(x) = 5 \cos(x) + 3$

The given function is of the form;

$f(x) = a\cos(bx) + c$

where

a=|5| =5 is the amplitude

and b=2 is the frequency.

and 2π/b=2π/2=π

The range of the given function is

8≤y≤-2

The midline is

$\frac{8 + - 2}{2} = \frac{6}{2} = 3$

6 0

3 years ago

Read 2 more answers

Help!!!!

ipn [44]

Answer:

The answer to your question is: letter A

Step-by-step explanation:

See the picture below

When we divide the polynomial by the factor the result is zero, that's why letter A is the factor.

When we divide the polynomial by B, C or D the residue is not zero, then they are not factors.

4 0

3 years ago

Select all the expressions with accurately written descriptions.

Paha777 [63]

Let's try to divide the sentence into multiple parts and then combine it one by one to make it easier to understand.

1. True
2 times y and 6 -------->(2y+6)
the square of the sum of "2 times y and 6" -------->(2y+6)^2
8 times "the square of the sum of 2 times y and 6"------> 8(2y+6)^2

2. True
the difference of x and 7 -------->(x-7)
9 and x -------->(9 + x)
2 times the product of the sum of
"9 and x" and "the difference of x and 7"-------> 2(9 + x) (x-7)

3. True
difference of 5 times x and 3 -------->(5x-3)
the square of the difference of 5 times x and 3------->(5x-3)^2

4. False
The description should be: the product of 7 and the square of x
the product of 7 and x -------->(7x)
the square of the product of 7 and x -------->(7x)^2

5. True
This one should be clear as it was one sentences
the sum of y squared(y^2) and three times y(3y) minus 4-------->y^2+ 3y -4

6. False
The description should be: the product of 5 and 8 times the square of x plus the sum of 20x and 8
the sum of 20x and 8 -------->20x+8
8 plus the square of x plus the sum of 20x and 8-------->8+ x^2 +20x+8
the product of 5 and.... ------->(5)(........
the product of 5 and
8 plus the square of x plus the sum of 20x and 8---->(5)(8+ x^2 +20x+8)

5 0

2 years ago

Read 2 more answers

In angle PQR, angle P = (4x – 14)º, angle Q = (5x + 6)", and angle R= (x - 2)°. Find<br> angle R.

vekshin1

we have: ∠P + ∠Q + ∠R = 180°

<=> (4x – 14)º + (5x + 6)° + (x - 2)° = 180°

<=> 4x – 14 + 5x + 6 + x - 2 = 180°

<=> 10x - 10 = 180°

<=> 10x = 190

<=> x = 19°

So: ∠R = (x - 2)° = (19 - 2)° = 17°

ok done. Thank to me :>

5 0

2 years ago