The number of students in a chess club decreased from 20 to 11. What is the percent decrease? Round your answer to the nearest percent. Can someone pls help quickly with the right answers‍♀️

9514 1404 393

  45%

Step-by-step explanation:

The percentage change is calculated using ...

  percent change = ((new value) - (old value))/(old value) × 100%

For your numbers ...

  percent change = (11 -20)/20 × 100% = -9/20 × 100% = -45%

The negative sign indicates the change is a decrease. Here, you're asked for the amount of decrease.

The percent decrease is 45%.

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb