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MrRissso [65]
3 years ago
12

10x is greater than or equal to 120 cm^2

Mathematics
1 answer:
Agata [3.3K]3 years ago
8 0

Answer:

x greater than or equal to 12cm^2

Step-by-step explanation:

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Fernando has some nickels, dimes, and quarters that are worth a total of $3.25. He has twice as many dimes as nickels. He has 3
CaHeK987 [17]

Answer:

Number of nickels = 5

Number of dimes = 10

Number of quarters = 8

Step-by-step explanation:

Fernando has a total of nickels + dimes + quarters = 3.25$

Let the number of nickels = x

Then x(.05) + dimes(.10) + quarters(0.25) = 3.25------(1)

He has twice as many dimes as nickels

dimes = 2×nickels

dimes = 2x--------(2)

He has 3 more quarters than nickels

quarters = nickels +3

quarters = x +3------(3)

From equations 1, 2, and 3.

x(.05) + 2x(.10) + (x + 3)(.25) = 3.25

.05x + 0.2x + 0.25x + .75 = 3.25

5x + 20x + 25x + 75 = 325

50x = 325 - 75

50x = 250

x = 5

Therefore the number of nickels are 5

from equation 2 number of dimes are 10

and from equation 3 number of quarters are 8.

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3 years ago
Simplify: 6 ÷ 3 + 3^2 · 4 − 2
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33/8 < exact form
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3 years ago
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5+21^6-(-6)*7÷17<br><br><br> ................
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Factor into two binomials : 1–bx–x+b
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1-bx - x + b

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