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3 years ago

Daca 24 de muncitori termina o lucrare in 4 zile, de cati muncitori este nevoie pentru a termina lucrarea in 3 zile?

Mathematics

2 answers:

Whitepunk [10]3 years ago

8 0

I think
i have a dream to do anything

Serggg [28]3 years ago

3 0

The answer would be 30 workers since it is 24 workers in 4 days, you divide 4 by 24 and get six. If you subtract a day, you would need more workers so you would add 6. 30 workers would be the answer. Hope this helps!

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Point G is the centroid of the right △ABC with m∠C=90° and m∠B=30°. Find AG if CG=4 ft.

o-na [289]

Answer: $\text{Length of AG=}\frac{2\sqrt{63}}{3}$

Explanation:

Please follow the diagram in attachment.

As we know median from vertex C to hypotenuse is CM

$\therefore CM=\frac{1}{2}AB$

We are given length of CG=4

Median divide by centroid 2:1

CG:GM=2:1

Where, CG=4

$\therefore GM=2$ ft

Length of CM=4+2= 6 ft

$\therefore CM=\frac{1}{2}AB\Rightarrow AB=12$

In $\triangle ABC, \angle C=90^0$

Using trigonometry ratio identities

$AC=AB\sin 30^0\Rightarrow AC=6$ ft

$BC=AB\cos 30^0\Rightarrow BC=6\sqrt{3}$ ft

$CN=\frac{1}{2}BC\Rightarrow CN=3\sqrt{3}$ ft

In $\triangle CAN, \angle C=90^0$

Using pythagoreous theorem

$AN=\sqrt{6^2+(3\sqrt{3})^2\Rightarrow \sqrt{63}$

Length of AG=2/3 AN

$\text{Length of AG=}\frac{2\sqrt{63}}{3}$ ft

5 0

3 years ago

The class president is organizing a class trip to a nearby amusement park for 314 students. The regular price is $35 per ticket.

salantis [7]

Answer:

287 students were eligible for the discount :)

Step-by-step explanation:

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3 years ago

Write the equation of the line, in slope-intercept form, with the following information: slope: -3/8 point: (16, -1)

irakobra [83]

Answer:

y+1=-3/8(x-16)

Step-by-step explanation:

I used the equation and plugged in the numbers

y-__y__=__m__(x-__x__)

6 0

3 years ago

How can I solve this? I need help its for geometry

Scilla [17]

What is the question

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3 years ago

Sam was given a bag of 100 red and blue marbles. He believes

Rashid [163]

Answer:

(D) There are probably more blue marbles than red marbles in the bag.

Step-by-step explanation:

There are a total of 100 marbles in the bag.

In the experiment of 50 trials, Sam had the following outcome:

Blue=35

Red=15

Relative Frequency of Blue Marbles =35/50=0.7

Relative Frequency of Red Marbles =15/50=0.3

Since the relative frequency of blue marbles is greater than the relative frequency of red marbles, <u>there are probably more blue marbles than red marbles in the bag.</u>

The correct option is D.

6 0

3 years ago