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ratelena [41]
3 years ago
14

It takes 5 builders, 18 hours to build a wall.How many minutes would it take 8 builders?​

Mathematics
1 answer:
mr Goodwill [35]3 years ago
7 0
It would take 135 minutes:)
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What is the answer for 2 3/7 + 3 2/7 in a mixed fraction
S_A_V [24]

Answer: 5 5/7

Step-by-step explanation:

3+2 = 5

You then look at you fractions. They both have the same denominator so we go ahead and add the two together.

3/7 + 2/7 = 5/7

Your final answer is 5 5/7

5 0
3 years ago
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Solve x'=5t(sqrt(x)) x(0)=1
LekaFEV [45]

Answer:

2\sqrt{x}=\frac{5t^2}{2}+2

Step-by-step explanation:

Given: \frac{\mathrm{d} x}{\mathrm{d} t}=5t\sqrt{x}\,,\, x(0)=1

Solution:

A differential equation is said to be separable if it can be written separately as  functions of two variables.

Given equation is separable.

We can write this equation as follows:

\frac{dx}{\sqrt{x}}=5t\,dt

On integrating both sides, we get

\int \frac{dx}{\sqrt{x}}=\int 5t\,dt

Formulae Used:

\int \frac{1}{\sqrt{x}}=2\sqrt{x}\,\,,\,\,\int t\,dt=\frac{t^2}{2}

So, we get solution as 2\sqrt{x}=\frac{5t^2}{2}+C

Applying condition: x(0) = 1, we get C=2

Therefore, 2\sqrt{x}=\frac{5t^2}{2}+2

8 0
3 years ago
What is the value of x? 24, 26, 12, x . A) 8 b) 12 c) 6 d) 2
Marina86 [1]
Set up a ratio:

24 / 36 = x /12

cross multiply:

24 * 12 = 36 * x

288 = 36x

divide both sides by 36

x = 288 / 36

x = 8
 answer is A) 8

6 0
3 years ago
(-5)-(-4)-(-1) hillllllllbj
Lynna [10]
The answer is zero because -5+4 is -1 and -1 - - 1 is -1 + 1 and that’s 0

5 0
3 years ago
Factorise<br><img src="https://tex.z-dn.net/?f=%20%5Csf%7B%20%7Bx%7D%5E%7B2%7D%20%20-%20%20%7By%7D%5E%7B2%7D%20%20-%20x%20%2B%20
9966 [12]

Answer:

(x-y) (x+y-1)

Step-by-step explanation:

x^2-y^2-x+y

(x-y) (x+y) - (x-y)

(x-y) (x+y-1)

6 0
3 years ago
Read 2 more answers
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