Answer:
87.125 is rational
Step-by-step explanation:
it is a rational number because it can be represented as a fraction
-9+3x
2(9-3x)/-2
-(9-3x)
-9+3x
Brainliest?
Photomath is a good one. So is KhanAcademy, but I don't know if they have an app version of the website.

This is found by dividing 32 by 2.4
Answer:
The value of T₂₀ - T₁₅ is <u>-20</u>.
Step-by-step explanation:
<u>Given</u> :
<u>To</u><u> </u><u>Find</u> :
<u>Using Formula</u> :
General term of an A.P.

- >> Tₙ = nᵗʰ term
- >> a = first term
- >> n = no. of terms
- >> d = common difference
<u>Solution</u> :
Firstly finding the A.P of T₂₀ by substituting the values in the formula :






Hence, the value of T₂₀ is a + 19d.

Secondly, finding the A.P of T₁₅ by substituting the values in the formula :






Hence, the value of T₁₅ is a + 14d

Now, finding the difference between T₂₀ - T₁₅ :









Hence, the value of T₂₀ - T₁₅ is -20.
