£555.84
1% of the original value ×20 is £92.64. Add that to the original value (£463.20)
we don't know what the value of "X" is, so therefore, we cannot conclude that it is 15 cm.
Sprry, I don't speak spanish, really wish I could've helped. If anyone reading this knows spanish, please comment and tell me what the question is asking.
Answer:
j = 0 or j = 30
Step-by-step explanation:
j² - 30j = 0
Factorise j out of both terms on the left side.
j (j-30) = 0
Apply zero product rule.
j = 0 or j-30 = 0
Find the value of j.
j = 0 or j = 30
