4 years ago

Factor these please!!!!!!!!!!!!!

Mathematics

1 answer:

motikmotik4 years ago

3 0

I gotchu!
1)
$(x + 7)(x + 1)$
(where x is b)
3)
$(x + 10)(x - 9)$
(where x is m)

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densk [106]

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4 years ago

Read 2 more answers

Working alone at their respective constant rates, machine A and machine B can fill a certain order in 3 hours and 6 hours, respe

ozzi

Answer: 2 hours

Step-by-step explanation:

Given : Working alone at their respective constant rates, machine A and machine B can fill a certain order in 3 hours and 6 hours, respectively.

Let t be the time taken by both of them working together.

Then, according to the question, we have

$\dfrac{1}{t}=\dfrac{1}{3}+\dfrac{1}{6}\\\\\Rightarrow\dfrac{1}{t}=\dfrac{2+1}{6}\ \ [\because\ L.C.M. (3,6)=6]\\\\\Rightarrow\dfrac{1}{t}=\dfrac{3}{6}=\dfrac{1}{2}\\\\\Rightarrow t=2$