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Nata [24]
3 years ago
15

If a*b means 2a + b , then what is 2*5 ?

Mathematics
2 answers:
rewona [7]3 years ago
5 0

To solve this problem you must apply the proccedure shown  below:

If (a)(b)=2a+b, you have that:

(2)(5)=(2)(2)+5=9

Because a=2 and b=5

Therefore, as you can see, the answer is: 9

Soloha48 [4]3 years ago
5 0

<u> Answer</u>

9


<u>Explanation</u>

a*b ⇒ 2a + b

2*5 ⇒ ?

Comparing a*b and 2*5, we can say that;

a = 2    and

b = 5

So, substituting a with 2 and b with 5 in the equation 2a + b we have,

a*b   ⇒ 2a + b  

2*5  ⇒ 2(2) + 5

        ⇒ (2×2) + 5

      ⇒ 4 + 5

      ⇒ 9

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