Yes, in order to be a real number, it must not contain the number i, which is an imaginary number, represented by √-1. Since 9/10 is equal to .9, there is no i in the number, meaning it is a real number.
Answer:
There are 280 6th grade students at Dutchtown middle
Step-by-step explanation:
In this question, we are asked to
calculate the number of students at Dutchtown middle.
Firstly, let the number of students be x.
From the question, 45% of this number which equals 126 went to the Valentine’s dance.
Mathematically, this can be represented as follows;
45/100 * x = 126
45x = 126 * 100
45x = 12,600
x = 12600/45
x= 280
Answer:
1/2
Step-by-step explanation:
7/10 - 2/10 = 5/10
5/10 simplifies to 1/2 by dividing numerator and denominator by 5.