Well 25% is the same as .25 or 1/4. So first you need to add X and Y so X+Y and since it is both you choose D
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185 = 447 digits in total
Answer:
Approximately 23%
Step-by-step explanation:
we know that
The high school graduating class of 2010 was 260 people
5 years later the high school graduating class was 320 people
In this problem
260 people represent the 100%
so
using proportion
Find out what percentage represent the difference (320-260)=60 people
Let
x -----> the percentage

Answer:
9
Step-by-step explanation:
supposed ratio be 2x : 5x : 2x
add the ratio
(7-2)2=5*2=10
or
(7-2)2=7*2-2*2=14-4=10