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nika2105 [10]
3 years ago
10

Two people working together can complete a job in 6 hours. If one of them

Mathematics
2 answers:
FinnZ [79.3K]3 years ago
5 0
Well, the person would be working 2 hours so twice as fast would be 4 hours. So I’m guessing it would take 8 hours
Marina CMI [18]3 years ago
3 0

Answer:

2 hours

Step-by-step explanation:

1 person = 6 hours

1+2 person = ? hours

To get the answer, the equation is,

3 person = 6/3

= 2

so, 3 person = 2 hours

Hope it helps!!

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What is the image point of (-1,-7) after a translation left 4 units and up 2 units?
bearhunter [10]

Step-by-step explanation:

hope this helps dear

it forms a right angle triangle I guess ☆☆

3 0
2 years ago
Rose has $426.00 in her checking account. 1⁄3 of her money will go toward bills. How
Alex Ar [27]

Answer:

<em>$284</em>

Step-by-step explanation:

First,<em> find 1/3 of 426 by multiplying 1/3*426</em>

With your answer <em>(142)</em>, subtract that from the total in your checking account.

<em>426-142=284</em>

This means, After withdrawing the amount she will use to pay bills, Her left over total will be <em>284 dollars.</em>

8 0
3 years ago
Read 2 more answers
Consider the given right triangle. If angle B = 43 degrees and c = 26.7 meters, find a.
Nady [450]

Answer: Side a equals 19.5 metres

Step-by-step explanation: Consider the right angled triangle as shown in the picture attached. The triangle has been drawn with angle measuring 43 degrees, side c (line AB) measuring 26.7 m and side a (line CB) is yet unknown.

A right angled triangle can be solved if at least one side and an angle are available. In this question we shall apply the trigonometric ratios since we have one angle which shall be the reference angle (43°). Also we have an hypotenuse (the side facing the right angle) and an unknown side which is the adjacent (which lies between the right angle and the reference angle).

Cos B = Adjacent/Hypotenuse

Cos 43 = a/26.7

Cos 43 x 26.7 = a

0.7314 x 26.7 = a

19.52714 = a

a ≈ 19.5  (rounded to the nearest tenth)

Therefore the length of side a equals 19.5 metres.

3 0
3 years ago
Read 2 more answers
a packe of cards conatins 4 red and 5 black cards. a hand of 5 cards is drawn without replacment. What is the proablity of all f
Vladimir79 [104]

Answer: Our required probability is 0.3387.

Step-by-step explanation:

Since we have given that

Number of red cards = 4

Number of black cards = 5

Number of cards drawn = 5

We need to find the probability of getting exactly three black cards.

Probability of getting a black card = \dfrac{5}{9}

Probability of getting a red card = \dfrac{4}{9}

So, using "Binomial distribution", let X be the number of black cards:

P(X=3)=^5C_3(\dfrac{5}{9})^3(\dfrac{4}{9})^2\\\\P(X=3)=0.3387

Hence, our required probability is 0.3387.

5 0
2 years ago
Is it congruent or not ? Remember that the diagram may not be drawn to scale . justify your conclusion.
Leno4ka [110]

Yes, we can see each triangle has congruent angle, side, angle, respectively (SAD). When two triangles have these correlating congruences, they can be determined as congruent.

4 0
3 years ago
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