Question

Which value of n makes the equation

6.4n-1.2+3n+8.2=19.22

A. N=11
B. N=2.9
C. N= -8
D. N=1.3

Answer 1

Explanation:

To find the value of n that makes the equation 6.4n - 1.2 + 3n + 8.2 = 19.22 true, we need to solve for n.

Let's simplify the equation step by step:

Combine like terms: 6.4n + 3n - 1.2 + 8.2 = 19.22

Combine the coefficients of n: 9.4n + 7 = 19.22

Subtract 7 from both sides: 9.4n = 12.22

Now, divide both sides by 9.4 to isolate n:

n = 12.22 / 9.4

Calculating this division, we get:

n ≈ 1.3

Therefore, the correct value of n that satisfies the equation is N = 1.3. So the answer is option D: N = 1.3.