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PSYCHO15rus [73]
3 years ago
5

12 men working 8 hours a day complete a piece of work in 10 days to complete a the same work in 8 days working 15 hours a days t

he number of men required is
Mathematics
1 answer:
daser333 [38]3 years ago
5 0

12 men : 8 hours : 10 days


// Find if every man works 1 hour

12 x 8 men : 1 hour : 10 days

96 men : 1 hour : 10 days


//Find if every man works 15 hours

96 ÷ 15 men : 15 hours : 10 days

6.4 men : 15 hours : 10 days


//Find if every man works 1 day

6.4 x 10 men : 15 hours : 1 day

64 men : 15 hours : 1 day


//Find if every man works 8 days

64 ÷ 8 men : 15 hours : 8 days

8 men : 15 hours : 8 days


Answer: 8 men is needed

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Please help :(
Natalka [10]

An expression that can only provide a single solution, y, for any given input, x, is called a “function”.

The given pairs are in the form (x,y)

Looking at set A:

(4,-2), (-2, 2), (2,-2), (4, 2)

Notice that if x=2, there are 2 y’s, -2 and 2. Therefore this set is not a function.

 

<span>Answer: A is not a function</span>

3 0
3 years ago
G(x)=x^2+3x-3<br> What are the zeros of the function?
krek1111 [17]

Answer:

(-3+\sqrt{21}) /2,  (3+\sqrt{21}) / 2 which is approx -3.791 and 0.791

Step-by-step explanation:

i used the quadratic formula:  [-b± sq rt (b² - 4ac) / 2a]

in this problem, a = 1, b = 3, and c = -3

6 0
2 years ago
What is the volume of the rectangular prism.
Pie

Answer:

C: 200

Step-by-step explanation:

Just multiply 12.5 x 8 x 2 to get the answer.

3 0
2 years ago
Read 2 more answers
Is this complementary, linear pair, vertical, or adjacent?
Lorico [155]
I believe it is Complimentary
7 0
3 years ago
Solve for a a^2+17=42?
grandymaker [24]

We are given the following equation:

a^2+17=42

Subtract both sides by 17

a^2=25

Take the positive/negative square root of both sides

a=\pm5

This should be your answer. Let me know if you have any questions, thanks!

6 0
3 years ago
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