Ask question

Ask question

All categories

3 years ago

13

About 65% of a person's weight is water chain weighs 40 kilograms how much does the water in chain weigh

1 answer:

Serjik [45]3 years ago

7 0

26 pounds cause 65% of 40 is 26.

You might be interested in

Who is Pythagoras and his contributions to the world of mathematics

sergeinik [125]

In antiquity, Pythagoras was credited with many mathematical and scientific discoveries, including the Pythagorean theorem, Pythagorean tuning, the five regular solids, the Theory of Proportions, the sphericity of the Earth, and the identity of the morning and evening stars as the planet Venus.

7 0

2 years ago

Wright an Expression to represent: three minus the product of two and a number z

Nookie1986 [14]

Answer:

2z-3

Step-by-step explanation:

7 0

3 years ago

Write a multiplication expression using the following clues:

Vedmedyk [2.9K]

5
8

6 or 7
Just taking a guess

3 0

2 years ago

The sum of the abscissa and the ordinate is six"

uranmaximum [27]

x + y = 6 easy medal me plz ? ^^

5 0

3 years ago

1)Sheyna drive to the lake and back. It took two hours less time to get there than it did to get back. The average speed on the

ipn [44]

Answer:

8 hours

Step-by-step explanation:

Given:

Sheyna drives to the lake with average speed of 60 mph and

$v_1 = 60\ mph$

Sheyna drives back from the lake with average speed of 36 mph

$v_2 = 36\ mph$

It took 2 hours less time to get there than it did to get back.

Let $t_1$ be the time taken to drive to lake.

Let $t_2$ be the time taken to drive back from lake.

$t_2-t_1 = 2$ hrs ..... (1)

To find:

Total time taken = ?

$t_1+t_2 = ?$

Solution:

Let D be the distance to lake.

Formula for time is given as:

$Time =\dfrac{Distance}{Speed }$

$t_1 = \dfrac{D}{60}\ hrs$

$t_2 = \dfrac{D}{36}\ hrs$

Putting in equation (1):

$\dfrac{D}{36}-\dfrac{D}{60} = 2\\\Rightarrow \dfrac{5D-3D}{180} = 2\\\Rightarrow \dfrac{2D}{180} = 2\\\Rightarrow D = 180\ miles$

So,

$t_1 = \dfrac{180}{60}\ hrs = 3 \ hrs$

$t_2 = \dfrac{180}{36}\ hrs = 5\ hrs$

So, the answer is:

$t_1+t_2 = \bold{8\ hrs}$

8 0

3 years ago