4.2+5×Y÷0.10; Y=4

Question

Y=? Unknown number

Answer 1

Plug in 4 for Y and then do the arithmetic.  Remember that multiplication and division are performed before addition, and note that dividing by 0.10 is the same as multiplying by 10 

 

4.2 + 5 * (4) / 0.10

 

4.2 + 20 / 0.10

 

4.2 + 200

 

204.2