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telo118 [61]
1 year ago
15

4 tons of sand cost $6,240.00. What is the price per pound?

Mathematics
1 answer:
Vsevolod [243]1 year ago
3 0

Answer:$0.78

Step-by-step explanation:

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Evaluate the expression<br><br> 5c - 2 = when c = 3<br><br> HELPPP quick
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13

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Solve the expression 8 x 5 − 12 x one third + 5 using PEMDAS
skelet666 [1.2K]

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How do I factor out a constant before factoring out a quadratic? <br>Factor completely: 3w^2-3w-90
pantera1 [17]
3w^2-3w-90 =0 \ \ \:3 \\ \\w^2- w-30 =0 \\ \\a=1 , \ b= -1 , c= -30 \\ \\\Delta =b^2-4ac = (-1)^2 -4\cdot1\cdot (-30) =1+120=121 \\ \\w_{1}=\frac{-b-\sqrt{\Delta} }{2a}=\frac{1-\sqrt{121}}{2 }=\frac{ 1-11}{2}=\frac{-10}{2}=-5

w_{2}=\frac{-b+\sqrt{\Delta} }{2a}=\frac{1+\sqrt{121}}{2 }=\frac{ 1+11}{2}=\frac{12}{2}=6 \\ \\ Answer:\\ \\ w^2- w-30 =(x+5)(x-6)
 

3 0
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