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2 years ago

Four men take 6 days to complete a certain work. Find the number of men needed to complete the same work in 8 days

Mathematics

2 answers:

Andru [333]2 years ago

4 0

Answer:

the answer is 5 men i think

spin [16.1K]2 years ago

4 0

The guy above me is right

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Help asaaaap explain please!!!!!

mariarad [96]

Answer:

Step-by-step explanation:

Once

$\sqrt{xy} = 6$

We know that $xy = 36$

There are infinity values for $x, y$ , but considering $x, y \in \mathbb{Z}$

Below we have all the solutions for $x, y$

Negative:

$\\x = -36 \text{ and } y = -1\\x = -18 \text{ and } y = -2\\x = -12 \text{ and } y = -3\\x = -9 \text{ and } y = -4\\x = -6 \text{ and } y = -6\\x = -4 \text{ and } y = -9\\x = -3 \text{ and } y = -12\\x = -2 \text{ and } y = -18\\x = -1 \text{ and } y = -36\\$

Positives:

$x = 36 \text{ and } y = 1\\x = 18 \text{ and } y = 2\\x = 12 \text{ and } y = 3\\x = 9 \text{ and } y = 4\\x = 6 \text{ and } y = 6\\x = 4 \text{ and } y = 9\\x = 3 \text{ and } y = 12\\x = 2 \text{ and } y = 18\\x = 1 \text{ and } y = 36\\$

We can see that $x + y \neq 18$

6 0

3 years ago

The crowd at a music concert is estimated to be 14,000 people. The exact attendance is 10,528 people. What is the percent error?

Dmitriy789 [7]

Answer:

32.9%

Step-by-step explanation:

14,000-10,528=3,472

3,472/10,528=0.32978723

Idk what your supposed to round to, but I put 32.9%

6 0

3 years ago

Find the slope of a line passing through the given points. 2,5) and (4,-7) help me

LekaFEV [45]

-7 -5 / 4 -2 / -12/2

-12/2 = -6

Slope: -6x

5 = 2(-6) + b

5 = -12 + b 

-12 + 17 = 5 

Slope intercept Form: y = -6x + 17

7 0

3 years ago

Solve the equation sin theta = 0.3 to the nearest tenth. Use the restrictions 90degrees < theta < 180degrees.

Alexxandr [17]

We first do:
∅ = sin⁻¹(0.3)
∅ = 17.5°

To go into the second quadrant, we add 90°.
∅ = 17.5 + 90
= 107.5°
The answer is A.

5 0

3 years ago

$35 to spend cake is $18 balloons are $4

Lera25 [3.4K]

Answer:

he spends $22 and has $13left

Step-by-step explanation:

3 0

2 years ago