Answer:
1. N4 = a
2. N8.25 = b
Step-by-step explanation:
1000 litre =N3
Each additional 100 litres = 5 k
100 litres
2000 litres
100 litres =5k
2000 litres = x
100x =5×2000
100x =10,000
Divide both sides of the equation by 100
x = 100k
100 Kobo = N1
x =N1
N3+N1 =N4
2. First ten words cost N6
Each additional word cost 45 k
1= 45k
5=x
x = 5×45
= 225 Kobo
100 Kobo = 1 Naira
225 Kobo = x
x = N2.25
N6 + N2.25
x = N8.25 = B
Answer: x = 20
Step-by-step explanation:
Multiply by 10 ( next LCF )
10 ( x / 2 + 2x / 5 ) = 18 * 10
5x + 4x = 180
9x = 180
x = 20
Answer:
$134.40
Step-by-step explanation:
40 % of $120 = 120*40/100 = $48
= 120 + 48 =$168
20% of $168 = 168*20/100 = $33.60
= 168 - 33.60 = $134.40
Answer:
n = 8.15
Step-by-step explanation:
3/8 is 4 & 3/5 % of what number?
Rewrite this as: 3/8 is (4 3/5)% of what number?
Convert 4 3/5% into a decimal: 0.046
Then write out and solve the equation 3/8 = 0.046n, where n is the unknown number.
Dividing both sides by 0.046, we get n = 8.15
the cost of the eggs
cost (x) = x*price
this is an example of a proportional cost relation with the size been x