Mariachi singers need powerful voices. Choose the two sentences in this paragraph that explain why. Another change was occurring at this time. Mariachi bands began to have different singers, rather than one lead singer Usually, mariachi singers would not use microphones when they performed. They have to sing very loudly to be heard over the sounds of their instruments.Other changes were happening as well For example, bands were using different kinds of instruments.

## Step 1<br />The problem requires us to identify two sentences from the given paragraph that explain why Mariachi singers need powerful voices. <br /><br />## Step 2<br />The first sentence that explains why Mariachi singers need powerful voices is "They have to sing very loudly to be heard over the sounds of their instruments." This sentence indicates that the singers need to have powerful voices because they need to be heard over the loud sounds of their instruments.<br /><br />## Step 3<br />The second sentence that explains why Mariachi singers need powerful voices is "Usually mariachi singers would not use microphones when they performed." This sentence suggests that the singers need to have powerful voices because they do not use microphones during their performances.