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Setler79 [48]
3 years ago
9

Simplify each expression

Mathematics
1 answer:
Verizon [17]3 years ago
8 0

Answer:

  1. -5n-1
  2. 72b+56

Step-by-step explanation:

<h2>Q: -(5n-1)-2</h2>
  • -5n+1-2
  • -5n-1
<h2>Q: -8b+8 (10b+7)</h2>
  • -8b+80b+56
  • 72b+56
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Suppose for some value of x the solution to the equation 2.5(y−x)=0 is y = 6. What must be true about x?
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Step-by-step explanation:

In this case, you input the value of y (y = 6) into the equation ( 2.5(y-x)= 0)

2.5(6-x) = 0

Open the bracket,

(2.5×6)-2.5x= 0

Collect like terms.

2.5x= 2.5×6

Divide both sides by the coefficient of x (2.5)

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Substituting 6 for x in the equation,

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It is 42 1/2 miles from Eaton to Baxter and 37 4/5 miles from Baxter to Wellington. How far is it from Eaton to Wellington if yo
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42 + 37 = 79 

Now we need to add the fractions 

\frac{1}{2} +  \frac{4}{5} = ...&#10;

To add we need a common denominator. 
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The toal and final answer is 80 \frac{2}{5} miles !
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