Question

Questions
A1 . The sum of two angles of a triangle is 150°. Find the measure of the
triangle
106
A2. Four more than three times a number is equal to twelve more than its double
Find the number.
A3. Uma has 1 l of salt solution containing 30% salt. She wants to dilute the solution
water to obtain a solution having 20% salt. Find the amount of water that she
she needs to add
A4.Ajay: A linear equation can have many solutions.
Suman: No, every linear equation will have a unique solution.
Whose statement is correct and why?
​

Answer 1

Answer:

1) given

sum of two angle of triangle= 150 degree

let third angle be x

angle a + ang. b + ang.c = 180 deg.

150 deg. + x = 180 deg.

x = 180 deg. - 150 deg.

x = 30 deg.

2) let no. be x

acc. to statement

4 + 3x = 12 + 2x

3x - 2x = 12 - 4

x = 8

3) I don' t know about this

4) No one's statement is correct because away said that one linear equation have answers but it has one answer and Suman said that every equation have same answer but every equation have different answer according to statement