Answer:
10
Step-by-step explanation:
Answer:
Exact quotient is 0
Step-by-step explanation:
Given : 
is the same as 1÷3.
To find : What is the exact quotient in decimal form of 1÷3
Solution : Here the divisor is 3
dividend is 1
To find quotient we divide divisor by dividend
1÷3 or = 0.333...
So, the quotient is 0.333... and remainder goes on to 1 till the division goes on.
Exact quotient in decimal form is 0
When you are multiplying 2 numbers with exponents, you need to add the exponent. When you multiply an exponent with an exponent, you multiply them.
So,
(3^2 x 7^4) ^9
First multiply the base and add exponents = ( 21^6) ^9
= 21 ^6x9
21^54
The same rule applies for variables, just pretend there is an imaginary 1.
Answer: f (-2 -5) f (1 4)
Step-by-step explanation:
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
