3 years ago

ILL GIVE BRAINLIEST

Mathematics

1 answer:

Arte-miy333 [17]3 years ago

3 0

Answer:

Answer is 7

Step-by-step explanation:

If the roll was 66 1/2 rolls long, we have to calculate and know how many pieces of wrapping paper for the roll so if each wrapping paper is 9 1/2 then you would have to divide 66 1/2 by 9 1/2 so you would need 7 wrapping papers.

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Step-by-step explanation:

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jack has 14 cards. by the end of the week his amount of cards has doubled. how many cards does jack have now

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Solve for y:<br>5(x + y) = 20 + 3x

son4ous [18]

5(x+y)= 20+ 3x
5x+5y=20+3x
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53.21

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3 years ago

Using the quadratic formula to solve 4x^2-3x + 9=2x + 1 what are the values of x

Alchen [17]

Answer:

x=5±√−103/8

Step-by-step explanation:

There's no real solutions

4x2−3x+9−(2x+1)=2x+1−(2x+1)

4x2−5x+8=0

x=−b±√b2−4ac/2a

x=−(−5)±√(−5)2−4(4)(8)/2(4)

x=5±√−103/8

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