What is the first term?
The sum of the first 10 terms of an arithmetic sequence is 120, and the common difference between consecutive terms is 5. What is the first term of the sequence?
Free Online 11+ Maths Tutoring – Open to All
Free Online 11+ Maths Tutoring – Open to All Hi! I’m Rithvik Muthuvelu , a GCSE student at King Edward’s School, Birmingham , and I’m offering free weekly online maths sessions to help students prepare for the 11+ entrance exams . These sessions are open to anyone who wants to improve their maths skills—no school restrictions. What You’ll Get Free weekly online maths classes Focused 11+ preparation : problem-solving, arithmetic, word problems, exam strategies Small-group format for better interaction Ideal for Year 4 and Year 5 students How to Join Weekly Session: Saturdays at 2:00 PM — COMING SOON! Google Meet Link: https://meet.google.com/nrk-iwmh-gij Contact Email: rithvikmu1@gmail.com If your child is preparing for the 11+ and would like extra support, feel free to join the class or get in touch. Looking forward to helping more students learn and grow! — Rithvik Muthuvelu
For this we can set up an equation:
ReplyDeletex + x + 5 + x + 10 + x + 15 + x + 20 + x + 25 + x + 30 + x + 35 + x + 40 + x + 45 = 120
10x + 225 = 120
10x = -105
x = -10.5
Therefore, the first term of the sequence is -10.5