Sarah is making a balloon arc, with pink and yellow balloons, for decorating her brother’s birthday party. For the balloon arc, she needs 4 more pink balloons than twice the yellow balloons. If she has x yellow balloons, then how many pink balloons are needed to finish making the balloon arc? Write an expression she would use to determine the total amount of balloons needed for the arc.
If Sarah has x yellow balloons, then she needs 2x+4 pink balloons to finish the balloon arc.
To determine the total amount of balloons needed for the arc, Sarah would follow these steps:
Step 1: Determine the number of yellow balloons.
Since Sarah has x yellow balloons, the number of yellow balloons is x.
Step 2: Determine the number of pink balloons.
Sarah needs 4 more pink balloons than twice the number of yellow balloons. So, the number of pink balloons is 2x + 4.
Step 3: Determine the total number of balloons needed for the arc.
The total number of balloons needed for the arc is the sum of the number of yellow balloons and the number of pink balloons, which is x + (2x + 4).
Therefore, the expression Sarah would use to determine the total amount of balloons needed for the arc is x + (2x + 4).