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3 years ago

Please help me on number 4. I don’t really get the question :(

Mathematics

2 answers:

bazaltina [42]3 years ago

8 0

Tonfind equivalent fractions you would do the following:
3/8 = x/100. Cross multiply
8x = 300. Divide by 8 on both sides
x = 300/8 or 37.5

PtichkaEL [24]3 years ago

3 0

Do 100÷8, then whatever the answer is multiply it by 8 and ta da

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What is the product of 2p+q and -3q-6p+1

Arlecino [84]

Hey there,

The question is to find the product of the two factors (2p + q)(-3q - 6p + 1).

Now we just multiply across:

-6pq - 12p² + 2p -3q²- 6pq + q

Now we combine like terms:

-12p² - 3q² + 2p + q

So the result would be -12p² - 3q² + 2p + q.

Hope I helped,

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3 years ago

3+5i/-2+3i perform operation

melisa1 [442]

Answer:

$\dfrac{9}{13}-\dfrac{19}{13}i$

Step-by-step explanation:

Remember $i^2=-1$

You are given the fraction $\dfrac{3+5i}{-2+3i}$

First, multiply the numerator and the denominator by -2-3i:

$\dfrac{3+5i}{-2+3i}=\dfrac{(3+5i)(-2-3i)}{(-2+3i)(-2-3i)}=\dfrac{(3+5i)(-2-3i)}{(-2)^2-(3i)^2}=\dfrac{(3+5i)(-2-3i)}{4-9i^2}=\dfrac{(3+5i)(-2-3i)}{4+9}$

This gives you 13 in denominator, now multiply two complex numbers in numerator:

$(3+5i)(-2-3i)=-6-9i-10i-15i^2=-6-19i+15=9-19i$

Thus, the initial fraction is

$\dfrac{9-19i}{13}=\dfrac{9}{13}-\dfrac{19}{13}i$

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3 years ago

A school typically sells 500 yearbooks in a year for $50 dollars each.

Evgen [1.6K]

You divide 500 by $50 to get 10; the school sold 10 yearbooks that year if you’re looking for that as an answer.

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Step-by-step explanation:

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Answer:

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So the answer is 1 $\frac{2}{3\\}$

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