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2 years ago

i five man take 45 hours to build a wall how long will it take 9 men working at the same pace to build this wall

Mathematics

1 answer:

Zarrin [17]2 years ago

4 0

Answer:

81 hours

Step-by-step explanation:

Let x be the time are needed

45：5 = x：9

5x = 45×9

5x = 405

x = 81

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The regular price of a child's entry ticket to a water park is $8 less than that for an adult's. The park offers half off of all

valkas [14]

194 = 1/2x + 2(x - 8)
194 = 1/2x + 2x - 16 = 5/2x - 16
5/2x = 194 + 16 = 210
5x = 210 x 2 = 420
x = 420/5 = 84

Therefore, the regular price of a child's ticket is $84 - $8 = $76.

3 0

3 years ago

starting in 2000 what is estimated population and annual growth rate of 19,169,000 at 0.6% for 2025 not sure how to do this

charle [14.2K]

Answer:

The estimated population in 2025 will be 22261221.

Step-by-step explanation:

Let us assume that the annual growth rate is compounded annually on the population.

Now, in 2000, the population was 19169000 and the annual growth rate is 0.6%, the the population in the year 2025 will be given by

$19169000(1 + \frac{0.6}{100} )^{25} = 22261220.7$ ≈ 22261221

Therefore, the estimated population in 2025 will be 22261221. ( Answer )

8 0

3 years ago

Pls help!! 94 + 8r - 7

Fofino [41]

Answer:

87 + 8r

Step-by-step explanation:

We have a variable that we cannot simplify further:

But we have two numbers that we can simplify:

94 - 7 = 87

Then we add those together:

8r+87

7 0

3 years ago

Read 2 more answers

Solve for a. a+(−1.2)=−5.5

Oksanka [162]

It is a + (-1.2) = -5.5
= a - 1.2 = -5.5
= a = -5.5 + 1.2
= a = -4.3

In short, Your Answer would be -4.3

Hope this helps!

4 0

3 years ago

Read 2 more answers

Is this right? thank you

Ainat [17]

yes it is right right right 100%

6 0

2 years ago

i five man take 45 hours to build a wall how long will it take 9 men working at the same pace to build this wall​

i five man take 45 hours to build a wall how long will it take 9 men working at the same pace to build this wall