Question

luna and ginny each cast magic spells. the tape diagram represents the ratio of spells luna casts to spells ginny casts.
lunas spells
ginnys spells
based on the ratio, when ginny and luna cast a total of 45 spells, what is the number of spells ginny casts?
spells

Explanation:

Step1: Determine the ratio

From the tape diagram, Luna's spells are represented by 4 parts and Ginny's by 5 parts. So the ratio of Luna's spells to Ginny's spells is \(4:5\). The total number of parts is \(4 + 5=9\) parts.

Step2: Find the value of one part

The total number of spells is 45, and there are 9 parts in total. So the value of one part is \(\frac{45}{9} = 5\) spells per part.

Step3: Calculate Ginny's spells

Ginny's spells are represented by 5 parts. So the number of spells Ginny casts is \(5\times5 = 25\) spells.

Answer:

25