Lindsay is 555 years younger than Mark. Seven years ago, the sum of their ages was 313131.
Let l be Lindsay's age and let mmm be Mark's age.
Which system of equations represents this situation?
Choose 1

System:

Explanation:

Rewrite the question to delete the typos:

1. Name your variables:

2. Translate each verbal statement into an algebraic expression:

a) Lindsay is 5 years younger than Mark

b) Seven years ago, the sum of their ages was 31

                       L + M - 14 = 31

                       L + M = 31 + 14

                       L + M = 45 ← second equation

3. Write the two equations:

System:

each side has a different length.  

step-by-step explanation:

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°