Answer:
Kailee bought 26 of 49-cents stamps and 10 of 21-cents stamps.
Step-by-step explanation:
Given:
Total Money paid for stamps = $14.84
Let the number of 49-cents stamps be x.
Also Let the number of 21-cents stamps be y.
Now Total Money paid is equal to sum of number of 49-cents stamps and number of 21-cents stamps.
100 cents = 1$
So 49 cents = $0.49
and 21 cents = $0.21
Hence equation be framed as;

Also Given:
number of .49-cents stamps was four less then three times the number of 21-cent stamps.
hence we can say that;

Now Substituting the value of equation 2 in equation 1 we get;

Now substituting the value of y in equation 2 we get;

Hence Kailee bought 26 of 49-cents stamps and 10 of 21-cents stamps.
Answer:
87.5%
Step-by-step explanation:
There are 376 students in 8th grade at Samuel's school. There are 47 8th graders trying out for football last Thursday.
The number is students not trying out for football last Thursday is calculated as:
376 students - 47 students
= 329 students
The percent of 8th graders that did not try out for football is calculated as:
329 students/376 students × 100
= 329/376 × 100
= 87.5 %
Answer:
-x
Step-by-step explanation:
3x-4x= -x
The answer is minus x
hopes it helps
90 - 20 =72
72 / 2 = 36
36 + 20 56
36 +56 = 92
36 and 56