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3 years ago

12 workers take 4 hours to complete a job. How long would it take 15 workers to complete the job?

Mathematics

2 answers:

zhenek [66]3 years ago

8 0

Answer:

3 hours and 12 minutes.

Step-by-step explanation:

12 Workers complete a job in 4 hours

1 worker complete a job 12 × 4 = 48

15 workers complete a job = 48/15 = 3³/¹⁵ = 3¹/⁵

= 3 hours + 1/5 × 60 minutes = 3 hours 12 minutes.

slavikrds [6]3 years ago

6 0

Answer:

3.2 hours

Step-by-step explanation:

12 workers * 4 hours = 48 worker hours

15 workers * x hours = 48 worker hours

48 /15 =3.2 hours

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If the function f is given by f(x)= 4x -3, find the value of f(2+h)

Travka [436]

f(x)=4x-3

$\\ \sf\longmapsto f(2+h)$

$\\ \sf\longmapsto 4(2+h)-3$

$\\ \sf\longmapsto 4h+8-3$

$\\ \sf\longmapsto 4h+5$

6 0

2 years ago

The equation of a circle is given below. (x-0.5)^{2}+(y-3.5)^{2} = 16(x−0.5) 2 +(y−3.5) 2 =16left parenthesis, x, minus, 0, poin

Mashutka [201]

Answer:

<h2>The radius is 4 units long.</h2>

Step-by-step explanation:

The given equation is

$(x-0.5)^{2} +(y-3.5)^{2} =16$

This equation belongs to a circle, which center is at (0.5, 3.5) and its radius is 4.

You can deduct its elements, becase this equation of the circle is explicit, which means the constant term represents the square power of the radius. Solving that, we have

$r^{2} = 16\\r=\sqrt{16}\\ r=4$

Therefore, the radius is 4 units long.

3 0

2 years ago

Factor 54+2754+27 using the GCF.

torisob [31]

~54: 1,2,3,6,9,27~

~2,754:1,2,3,6,9,17,18,27,34,51,54,81,102,153,162,
306,459, 918,1377,2754~

~27: 1,3,9,27~

GCF: 27

Your answer would be for the GCF would be 27

6 0

3 years ago

Sixteen blocks are needed to build a four-step double staircase like

OleMash [197]

16 blocks = 4 steps
x blocks = 50 steps
(16 blocks x 50 steps)/4 steps
= 200 blocks

6 0

2 years ago

It easy i just don't pay attention in class so I don't know the answer

Natasha_Volkova [10]

I think the answer is J
Y = 7
You could also use
Geo calculator to make it easier.
You’ll just have to write the point and the choices.

5 0

2 years ago