3 years ago

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Mathematics

1 answer:

Readme [11.4K]3 years ago

4 0

What is the question

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7 men can dig a canal in 14 weeks. After 2 weeks of work another 7 men joined them in how many weeks more will the work be finis

oksano4ka [1.4K]

Answer:

1 week

Step-by-step explanation:

6 0

3 years ago

Hi help and explain pls

PolarNik [594]

Step-by-step explanation:

U = (x - 5)

V = y^3

because we follow the rule

(U+V)^2 = U^2 + 2UV + V^2

factor the expression will be

$((x - 5) + {y}^{3} )((x - 5) + {y}^{3} )$

3 0

3 years ago

Use the substitution method to solve the system. {m+n=5m−n=3 What is the solution? The solution is (4, 1). There is no solution.

mixer [17]

Hint: $\bf \begin{cases}
m+n=5\to &m=\boxed{5-n}
\\ \quad \\ \quad \\

m-n=3\to &\boxed{5-n}-n=3\quad \impliedby \textit{solve for "n"}
\end{cases}$

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3 years ago

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Bryson has soccer practice for 2 1/4 hours 2 times a week. How much time does Bryson spend at soccer practice in 1 week?

sergey [27]

Answer:

4 1/2 hours

Step-by-step explanation:

1 practice = 2 1/4 hours

2 practices = 4 1/2 hours

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3 years ago

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Sara's goal is to exercise a mean of 45 minutes per day for one week. For the first 6 days of the week, she exercised 35, 40, 37

Diano4ka-milaya [45]

Answer:

Step-by-step explanation:

35+40+27+42+45+50=249 249+65=315 315/7=45

5 0

3 years ago

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