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3 years ago

7

Please help me with this math problem

1 answer:

professor190 [17]3 years ago

6 0

Answer:

B

Step-by-step explanation:

The inequality is 1.20$ x + 3.60 < 9.60, the amount of money in total that Rammy has. As said, for each pound of peaches it would cost 1 dollar and 20 cents (1.20) So for the gallon of milk if Rammy bought it he would have 6$ left to spend on the pounds of peaches. So you do 6$ (600) divided by 1.20$ (120) and you would get 5 pounds of peaches. Therefore, Rammy can buy 5 or more pounds of peaches.

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Answer:

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Step-by-step explanation:

$\frac{3}{5-6i}$

To simplify or to write in the form a+bi, you will need multiply the top and bottom by the bottom's conjugate like so:

$\frac{3}{5-6i} \cdot \frac{5+6i}{5+6i}$

Keep in mind when multiplying conjugates you only have to multiply first and last.

That is the product of (a+b) and (a-b) is (a+b)(a-b)=a^2-b^2.

(a+b) and (a-b) are conjugates

Let's multiply now:

$\frac{3}{5-6i} \cdot \frac{5+6i}{5+6i}=\frac{3(5+6i)}{25-36i^2}$

i^2=-1

$\frac{15+18i}{25-36(-1)}$

$\frac{15+18i}{25+36}$

$\frac{15+18i}{61}$

$\frac{15}{61}+\frac{18}{61}i$

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