4 years ago

There are 15 people in a room. Each person ate 2 of a pizza. There was no 3 pizza remaining. How many pizzas were in the room?

Mathematics

1 answer:

irinina [24]4 years ago

7 0

Answer:

33 slices

Step-by-step explanation:

15 times 2 plus 3

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Twice a number (z) added to 21 is equal to 9 times the number added to 7. What is the number?

pickupchik [31]

Answer:

The number is 2

Step-by-step explanation:

Twice a number (z) = 2*z = 2z

Twice a number (z) added to 21 = 2z + 21

9 times the number added to 7 = 9z + 7

9z + 7 = 2z + 21

Subtract 2z form both sides

9z - 2z + 7 = 21

7z + 7 = 21

Subtract 7 from both sides

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Divide both sides by 7

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tensa zangetsu [6.8K]

Y=(x+3)(x+5)
0=(x+3)(x+5)
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So, -3 and -5 are the zeros of the graphed function.
Hope I helped!

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Step-by-step explanation:

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