Question

Mark was thinking of a number. Mark adds 1.7 to the number, then doubles the result to get an answer of 42.7. Form an equation with x from the information.

Answer 1

Answer:

(x+1.7)2=42.7

Step-by-step explanation:

(x+1.7)2=42.7

dividing 2 on both sides

so

x+1.7=21.35

now subtracting 1.7 on both sides

x=19.65