Answer:
17/3 or 5 2/3 yards
Step-by-step explanation:
17 divided by 3 is 17/3, which gets changed to 5 2/3
111
Answer:
20 students
Step-by-step explanation:
If the class decreased by 15%, the students that she has now (17) represents a percentaje of:
100% - 15% = 85%
so<u> the 17 students are 85% of what she had</u>:
Students Percentage
17 ⇒ 85%
and we are looking for how many students she had 2 years ago, thus we are looking for the <u>100%</u> of students (the original number of studens). If we represent this number by x:
Students Percentage
17 ⇒ 85%
x ⇒ 100%
and we solve this problem using the <u>rule of three</u>: multiply the cross quantities on the table( 17 and 100) and then divide by the remaining amount (85):
x = 17*100/85
x = 1700/85
x=20
2 years ago she had 20 students
You can set up a ratio of side lengths as follows:
Now we just solve for x (by cross-multiplying):
So,
x = 75 units.
A possible answer can be n = 1/10 + rt/-10.
I brought the - 4n over to the other side and the +1 to the other side, giving me -10n = -1 + rt. I divided it all by - 10, which gave me n=-1/-10 + rt/-10. Since two negatives cancel each other out and becomes a positive, -1/-10 becomes 1/10.
So far your getting all of them right. But, maybe next time upload a better picture because it’s hard to see what you wrote.
