Let's name these two digits as a (tens digit) and b (units digit) and then rephrase the problem statement using a and b.
The part of the sentence "three times the tens digit is 2 less than twice the units digits" translates into:
3a = 2b - 2
Considering that both a and b have to be integer numbers less than 10 and that a will have to be an even number
(since 2b - 2 is always even and for 3a to be even, a will have to be even),
the only possible options that will satisfy this equation are: 47 and 24.
The second part of the problem statement does not make much sense.
What exactly is twice the number obtained by reversing the digits?
In case of 47, twice the number obtained by reversing the digits is 2*74 = 148.
In case of 24, twice the number obtained by reversing the digits is 2*42 = 84.
A - C is less than or equal to 26.
B - C is less than or equal to 78.
C - C is greater than or equal to 26.
D - C is greater than or equal to 52.
2/1 = 8z -2/9
Number of students that are wearing a shirt other than blue or white is 6 students
Order of Operations in Mathematics follow this following rule :
This rule is known as the PEMDAS method.
In working on a mathematical problem, we first calculate operation that is in parentheses, follow by exponentiation, then multiplication or division, and finally addition or subtraction.
Let us tackle the problem !
Given:
Total Number of Students = 36 students
¹/₆ of the students are wearing blue shirts.
²/₃ of the students are wearing white shirts.
Finally, the number of students wearing other clothes can be found in the following way:
Grade: Middle School
Subject: Mathematics
Chapter: Percentage
Keywords: Linear , Equations , 1 , Variable , Line , Gradient , Point , Multiplication , Division , Exponent , PEMDAS , percentange , percent
3 + j / 11 = 2
j =__________
This is how you solve it:
3 + j / 11 = 2
3 + j = 2 × 11
3 + j = 22
j = 22 - 3
j = 19
Now you could check your answer by substituting the value of j :
3 + j / 11 = 2
3 + 19 / 11 = 2
22/11 = 2
2 = 2