(a) We can use the equation:
Final length = Initial length + increase
9.25 = L + 3.4
(b) To solve for L, we can subtract 3.4 from both sides of the equation:
9.25 - 3.4 = L + 3.4 - 3.4
5.85 = L
Therefore, the length of the rope at the beginning of the trick was 5.85 meters.
At the beginning of a trick, a magician holds up a piece of rope. Then she magically makes the rope 3.4 meters longer. The final length of the rope is 9.25 meters.
(a)Let L be the length of the rope at the beginning of the trick (in meters). Write an equation that can be used to find L. First choose an appropriate form. Then fill in the blanks with the letter L and the numbers 3.4 and 9.25.
(b)Solve your equation for L to find the length of the rope at the beginning of the trick.
1 answer