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Neko [114]
3 years ago
6

If the average of 2 and p is equal to the average of 1,6, and p, what is the value of p

Mathematics
1 answer:
Vanyuwa [196]3 years ago
8 0

Answer:

p = 8

Step-by-step explanation:

\frac{2+p}{2}=\frac{1+6+p}{3}\\\\\frac{2+p}{2}=\frac{7+p}{3}\\\\

Cross multiply

 (2+p) * 3 = (7 + p) * 2          {Use distributive rule}

2*3 + p*3 = 7*2 + p *2

    6+ 3p   = 14 + 2p          {subtract 2p form both sides}

6 + 3p - 2p= 14

      6 + p  = 14                {Subtract 6 form both sides}

              p = 14 - 6

              p = 8

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3 years ago
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Answer:

180 cm²

Step-by-step explanation:

From inspection of the diagram, the surface area is made up of the area of 4 congruent triangles and the area of one square.

Area of a square = x² (where x is the length of one side)

⇒ area of the square = 6² = 36 cm²

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Total surface area = 4 x area of one triangle + area of the square

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                               = 144 + 36

                               = 180 cm²

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