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2 years ago

12

If 5 lbs cost 9 dollars how much does 1 lbs cost

1 answer:

frutty [35]2 years ago

4 0

Answer: $1.80

Step-by-step explanation:

9=5x

9/5= 1.8

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Find the roots for the above given quadratic equation.<br><br> Please show the working too.

Mars2501 [29]

Step-by-step explanation:

$9x^{2} - 9 (a + b)x + 2a^{2} + 5ab + 2b^{2} = 0\\9x^{2} - 3[(3a + 3b)]x + 2a^{2} + 4ab +ab + 2b^{2} = 0\\9x^{2} - 3[(a + 2b) + (2a + b)]x + 2a[a + 2b] + b [a + 2b] = 0\\9x^{2} - 3(a + 2b)x - 3 (2a + b) + (a + 2b)(2a + b) = 0\\3x [3x - (a + 2b)] -(2a + b)[3x - (a + 2b)]=0\\\:\: [3x - (a + 2b)] - [3x - (2a + b)] = 0\\\\\\\\\circ\:3x - (2a + b) = 0\\\boxed{\underline{x = \frac{2a + b}{3} }}\\\\\\\\\circ\:3x - (2a + b) = 0\\\boxed{\underline{x = \frac{a + 2b}{3} }}$

So, the roots are:

<u>1) x = 2a + b/3</u>

<u>2) x = a + 2b/3</u>

_________

Hope it helps!

◇ Please refer to the attachment if the latex code shows some error.

$\mathfrak{Lucazz}$

6 0

1 year ago

Read 2 more answers

In the cafeteria, tables are arranged in groups of 5, with each table seating 7 students.

Shalnov [3]

Answer:

280 i believe

Step-by-step explanation:

5 x 7 x 8 = 280

4 0

2 years ago

likoan [24]

Answer:

is that a song you write cause it is good

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Which one is right please explain

Kitty [74]

The correct answer would be B. Hope this helps, and please mark me the brainliest, we can be friends!!

5 0

3 years ago

If I have $1,050 dollars, and I want to buy something 6 times for $45 dollars, how much times can I buy it until I run out of mo

joja [24]

Answer:

140

Step-by-step explanation:

here,

You have 1050

now

$1050(45×6)

=140 items

8 0

1 year ago