Question

Sally wants to find out what number is 165% of 340. If w represents this unknown number, which proportion can Sally use to find w?

a) 165/100 = w/340
b) 100/165 = 340/w
c) 340/165 = 100/w
d) w/165 = 340/100

Answer 1

Sally can use the proportion 165/100 = w/340 to find the unknown number that is 165% of 340. By cross multiplying and dividing, she will find that w equals 561.

Step-by-step explanation:

To find out what number is 165% of 340, Sally can use the proportion 165/100 = w/340. To solve for w, she will cross multiply and then divide as follows:

• 165 × 340 = 100 × w
• (165 × 340) / 100 = w
• 56100 / 100 = w
• w = 561

Therefore, the unknown number w that is 165% of 340 is 561.