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LiRa [457]
3 years ago
14

The volume of construction work was increased by 60% but the productivity of labor increased by only 25%. By what percent must t

he number of workers be increased?
Mathematics
1 answer:
ss7ja [257]3 years ago
5 0
<span>The number of workers must be increased by 28%.</span>
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If I have this sequence 2, 4, 6, ... I can describe the rule as
Andrews [41]

Answer:

I believe your rule would be (The rule is add 3)

Step-by-step explanation:

If you have -9 and you get to -6 that means you added an interval of 3

-9,-6,-3,0,3 is how it would continue

(The rule is add 3)

3 0
3 years ago
WORTH A WHOLE LOTTA POINTS!
dangina [55]

Where did you get that A and B? I could answer if you were much more precise.

8 0
3 years ago
This is factoring trinomials,help plz!
MaRussiya [10]
10.
Factor the following:
8 x^2 - 2 x - 10
Factor 2 out of 8 x^2 - 2 x - 10:
2 (4 x^2 - x - 5)

Factor the quadratic 4 x^2 - x - 5. The coefficient of x^2 is 4 and the constant term is -5. The product of 4 and -5 is -20. The factors of -20 which sum to -1 are 4 and -5. So 4 x^2 - x - 5 = 4 x^2 - 5 x + 4 x - 5 = 4 x (x + 1) - 5 (x + 1):
2 4 x (x + 1) - 5 (x + 1)
Factor x + 1 from 4 x (x + 1) - 5 (x + 1):
Answer:  2 (x + 1) (4 x - 5)
_____________________________________________

13. 
Factor the following:
16 x^2 - 24 x + 8

Factor 8 out of 16 x^2 - 24 x + 8:
8 (2 x^2 - 3 x + 1)

Factor the quadratic 2 x^2 - 3 x + 1. The coefficient of x^2 is 2 and the constant term is 1. The product of 2 and 1 is 2. The factors of 2 which sum to -3 are -1 and -2. So 2 x^2 - 3 x + 1 = 2 x^2 - 2 x - x + 1 = -(2 x - 1) + x (2 x - 1):
8 x (2 x - 1) - (2 x - 1)

Factor 2 x - 1 from x (2 x - 1) - (2 x - 1):
Answer: 8 (2 x - 1) (x - 1)
8 0
3 years ago
Sanjit drives the 45 km distance between York and Leeds he then drives a further 42 km from Leeds to Blackpool
I am Lyosha [343]

Answer: His average speed for his total journey from York to Blackpool is approximately 61.41 km/h.

Step-by-step explanation:

\text{ The average speed}=\frac{\text{Total distance covered}}{\text{Total time taken}}

Since, The distance covered by him from York to Leeds = 45 km,

The speed when he covered this distance = 54 km/ h

Thus, the time taken by him in travelling from York to Leeds = 45/54 hours (Because, Time = Distance/speed)

Now, The distance covered by him from Leeds to Blackpool = 42 km,

The time taken by him in travelling from Leeds to Blackpool = 35 minutes = 35/60 hours

Hence, the total time taken by him in this journey

=\frac{45}{54}+\frac{35}{60}=\frac{450+315}{540}=\frac{765}{540}=\frac{17}{12} hours

And, the total distance he covered= 45 + 42 = 87 km

Thus, His average speed

=\frac{87}{17/12}= \frac{12\times 87}{17}=\frac{1044}{17}=61.4117647\approx 61.41\text{ km per hour}

3 0
3 years ago
Read 2 more answers
Which number is equivalent to 3^(4)÷3^(2)
Yuki888 [10]

Answer:

9

Step-by-step explanation:

3^(4)÷3^(2)=9

5 0
3 years ago
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