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Umnica [9.8K]
3 years ago
8

What is the value of the expression when a = 5, b = 4 , and c = 6?⁢ 4a2b−c .

Mathematics
2 answers:
Ilia_Sergeevich [38]3 years ago
6 0
That problem is not complete.

vfiekz [6]3 years ago
3 0

Answer:

The value of expression is 18.

Step-by-step explanation:

The following information is missing in the question. The correct expression is 4a+b - c

We are given the following expression:

4a+b - c

We have to find the value of this expression when a = 5, b = 4 and c = 6.

Putting these values we get,

4a+b - c\\=4(5)+4-6\\=20 + 4-6\\=18

The value of expression is 18.

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Simon has more money than Kande. if Simon gave Kande K20, they would have the same amount. While if Kande gave Simon $22, Simon
motikmotik

Given parameters;

  Let us solve this problem step by step;

Let us represent Simon's money by S

Kande's money by K

  • Simon has more money than Kande

               S > K

  •  if Simon gave Kande K20, they would have the same amount;

 if Simon gives $20, his money will be  S - 20 lesser;

      When Kande receives $20, his money will increase to K + 20

                     S - 20  = K + 20   ------ (i)

  • While if Kande gave Simon $22, Simon would then have twice as much as Kande;

          if Kande gave Simon $22, his money will be K - 22

    Simon's money, S + 22;

                  S + 22  = 2(K - 22)    ------ (ii)

Now we have set up two equations, let us solve;

         S - 20  = K + 20  ---- i

         S + 22  = 2(K - 22)  ;       S + 22  = 2K - 44  ---- ii

So,      S - 20  = K + 20

          S + 22  = 2K - 44

subtract both equations;

               -20 - 22  = (k -2k)  + 64

                   -42  = -k + 64

                       k  = 106

Using equation i, let us find S;

            S - 20 = K + 20

             S - 20  = 106 + 20

              S = 106 + 20 + 20  = 146

Therefore, Kande has $106 and Simon has $146

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