Answer:
£101.4
Step-by-step explanation:
Interest = PRT/100
Given
Principal P = £78
Time T = 6yrs
Rate R = 5%
Interest = 78 x 5 x 6 /100
Multiply through
= 2340/100
= 23.4
= £23.4
Amount after 6 yrs = principal + interest
= £78 + £23.4
= £101.4
Interest: £23.4
Amount: £101.4
6 × 5/100 × 78 = 23.4
Balance: 78 + 23.4 = 101.4
the second and last one
....................
0.15 * 60 = 9 or 15/100 * 60/1 = 900/100 = 9
<em>0.78</em>
From the question, we are to represent 78% as a decimal
78% = 78/100
78/100 = 78 * 1/100
78/100 = 78 * 0.01
78/100 = 0.78
<em>hence the percent written as a decimal is 0.78</em>