Answer:
Step-by-step explanation
What is the value of ▲ in the equation shown? 8 x 4 = ( ▲ x 7) - (▲ x 3) = _____
2 answers:
You might be interested in
Answer:
- 57
Step-by-step explanation:
The n th term of an arithmetic sequence is
= a + (n - 1)d
where a is the first term and d the common difference
Here a = 13 and d = - 2.5, thus
= 13 + (28 × - 2.5) = 13 - 70 = - 57