jaedenevan062907 jaedenevan062907
  • 08-02-2019
  • Mathematics
contestada

The perimeter of an isosceles triangle is p = 2a + b. Find the numerical value of a if p = 10 and b = 3. A. 61/2 B. 13 C. 31/2 D. 7

Respuesta :

dogsb4doods
dogsb4doods dogsb4doods
  • 08-02-2019

Answer:

D. a = 3 1/2

Step-by-step explanation:

Plug in values

10 = 2a +3

Subtract 3 from both sides

7 = 2a

Divide both sides by 2

3 1/2 = a

Answer Link
parmesanchilliwack parmesanchilliwack
  • 08-02-2019

Answer: [tex]3\frac{1}{2}[/tex]

Step-by-step explanation:

Here the given expression,

2a + b = p

By putting p = 10 and b = 3 in the above expression,

We get,

[tex]2a + 3 = 10[/tex]

[tex]\implies 2a = 10 - 3[/tex]

[tex]\implies 2a = 7[/tex]

[tex]\implies a = \frac{7}{2} = 3\frac{1}{2}[/tex]

Hence, Option C is correct.

Answer Link

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