7.5y - z/9 + 50 + 2y
Okay, so it would be best to organize and simplify this expression: 9.5y -z/9 + 50
Alright, now let's eliminate some answers.
True or false: The constant is 7.5. This is <em>false. </em>7.5 is a coefficient, 50 is a constant.
True or false: The coefficients are 7.5 and -9. This is <em>false. </em>Sure, 7.5 is a coefficient, but -9 is not. Actually, z/9 is also equal to (1/9)z, so <em>technically </em>1/9 is the coefficient.
True or false: The variables are x and y. This is <em>false. </em>Where is x? Nonexistent.
True or false: The like terms are 7.5y and 2y. This is <em>true. </em>When we simplified the equation, we first combined like terms. 7.5y and 2y are like terms and therefore able to be combined. That's how we got 9.5y.
The answer, I believe, is D. Hope this helps!
Number of students taking Spanish class this year in Brooke's school = 60
Percentage increase in the number of students
taking Spanish class from last year = 25%
Then
Number of students that are taking Spanish
class more than last year = 25/100 * 60
= 15
Then
The number of students that took Spanish class last year = 60 - 15
= 45 students
So the number of students that took Spanish class last year was 45. I hope the answer is clear to you and the procedure is also easy for you to understand.
First I divided then multiplied. hope i helped
Answer:
1 * 10^3
Step-by-step explanation:
1440 can be rounded off to the nearest hundred as 1400.
1440 can be rounded off to the nearest thousand as 1000.
1000 = 1 * 10^3
