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Gemiola [76]
3 years ago
9

I need help need help with Geometry

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
4 0

Answer:

D

Step-by-step explanation:

X is 21

z is the same as 111

y is 48

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One number is 2 more than another. The difference between their squares is 20. What are the numbers?
ss7ja [257]

Answer:

let x=one number =

x-2= another number

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x²-x²-4x+4=20

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x=16/-4

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Gavin and Caleb go to the movie theater and purchase refreshments for their friends. Gavin spends a total of $22.25 on 2 bags of
gavmur [86]

Answer:

Drinks = 6.75

Popcorn= 1

Step-by-step explanation:

Let the popcorn = P

Let the drink = D

2*P + 3*D = 22.25         multiply this equation by 6

12*P + 4D = 39.00

<u>12P + 18D = 133.5</u>          Subtract these two equations

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-14D/-14 = -94.5/-14        Do the division

D = 6.75

=========================

12P  +  4D = 39            Substitute for D

12P + 4*6.75 = 39        Combine

12P + 27 = 39               Subtract 27 from both sides

12P + 27-27=39-27      Collect like terms

12P = 12                        Divide by 12

12P/12 = 12/12

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