Verified Answer :

8a - 10.5b

subtitute the values of a = 1/4 and b = 10 to the expression:

8 · 1/4 - 10.5 · 10 = 2 - 105 = -103

Answer:

\(8a-1+0.5b=6\) when \(a=\frac{1}{4}\) and b=10.          

Step-by-step explanation:

Given : Expression \(8a-1+0.5b\) when \(a=\frac{1}{4}\) and b=10.

To find : Solve the expression?

Solution :

Step 1 - Write the expression,

\(8a-1+0.5b\)

Step 2 - Substitute \(a=\frac{1}{4}\) and b=10

\(8a-1+0.5b=8(\frac{1}{4})-1+0.5(10)\)

Step 3 - Solve,

\(8a-1+0.5b=2-1+5\)

\(8a-1+0.5b=6\)

Therefore, \(8a-1+0.5b=6\) when \(a=\frac{1}{4}\) and b=10.