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Korolek [52]
3 years ago
7

Archimedes drained the water in his tub.

Mathematics
1 answer:
frosja888 [35]3 years ago
5 0

Answer:

  a)  1/4 minute

Step-by-step explanation:

You can find the time using a proportion. It took 5 minutes to drain the entire 360 liters, so we can write the proportion as ...

  time/volume = (5 min)/(360 L) = t/(18 L)

Multiplying by 18 L gives ...

  t = (18/360)(5 min) = (5/20) min = 1/4 min

It took 1/4 minute to drain each 18 liters.

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What is the value of x?
Debora [2.8K]

Answer:

Step-by-step explanation:

the ratio of 24 to 36 is the same as  x to 12

\frac{24}{36} = \frac{x}{12}

then

12*(\frac{24}{36})=x

\frac{24}{3} = x

8 = x  

that's it :)

5 0
3 years ago
If the perimeter of a rectangle is 78 inches and the length is 13 inches more than its​ width, find the area of the rectangle.
Feliz [49]
I believe the area of the rectangle would be 338
8 0
3 years ago
100 Points and I WILL mark brainliest for first correct answer.
lesya [120]

Answer:(a) Co-ordinate rule is  and  

(b) Co-ordinates of B' and C' are  and  respectively.

Step-by-step explanation:

(a)

Here, the co-ordinates of A are translated to A'.

For the co-ordinates A and A',   and  

So, x value of A has shifted to right by 6 units and y value of A has shifted 8 units down.

Hence, the co-ordinate rule that maps ΔABC onto ΔA'B'C' is:

and .

(b)

Using the co-ordinate rule, we can find the co-ordinates of B' and C'.

For B,  and .

So,  of B' is  

And,  of B' is .

Therefore, co-ordinates of B' are .

For C,  and .

So,  of C' is  

And,  of C' is .

Therefore, co-ordinates of C' are .

Step-by-step explanation:

3 0
3 years ago
Ryan invests in an account that pays 1.25% compound interest annually. He uses the expression P(1+r)t to find the total value of
arlik [135]

Answer:the total value of the account after 3 years is $7266

Step-by-step explanation:

Initial amount that Ryan invested into account is $500 This means that the principal is P, so

P = 7000

It was compounded annually. This means that it was compounded once in a year. So

n = 1

The rate at which the principal was compounded is 1.25%. So

r = 1.25/100 = 0.0125

It was compounded for 3 years. So

n = =3

The formula for compound interest is

A = P(1+r/n)^nt

A = total amount in the account at the end of t years. Therefore

A = 7000 (1+0.0125/1)^1×3

A = 7000(1.0125 )^3= $7266

7 0
3 years ago
Keith is a drummer who purchases his drumsticks online. When practicing with the newest pair, he notices they feel heavier than
Marina86 [1]

Answer: 0.0174

Step-by-step explanation:

Given : \mu=1.85\ \ ; \sigma=0.18

Let x be the random variable that represents  the weight of the drumsticks.

We assume that the weight of the drumsticks is normally distributed.

Now, the z-score for x=2.23 ,\because z=\dfrac{x-\mu}{\sigma}

\Rightarrow\ z=\dfrac{2.23-1.85}{0.18}\approx2.11\ \ \

Using z-value table , we have

P-value =P(x≥2.23)=P(z≥2.11)=1-P(z<2.11)=1-0.9825708

=0.0174292≈0.0174 [Rounded nearest 4 decimal places]

Hence, the  probability of the stick's weight being 2.23 oz or greater = 0.0174

6 0
4 years ago
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