Answer:
N300
Step-by-step explanation:
Given data
1. Expand -2a(5b-3)
open bracket
=-2a*5b + 2a*3
=10ab+3a
2. combined ratio= 2+3= 5
Dayo's share is #120
let us apply the part to all approach
2/5=120/x
cross multiply
120*5= 2x
600=2x
x= N300
Hence the amount is N300
Answer: none
2500
a² + 2ab + b²
49² + 98 + 1
Comparing terms
a²= 49²
a= 49
2ab = 98
2× 49 × b = 98
98b = 98
b= 98/98
b = 1
or
b²= 1
b=√1
b= 1
a=49 and b= 1
Hence (a+b)²= (49+1)²
50²= 2500
yes
i believe its 2k= 3(k+1)
