The simple interest formula I=PRT/100 gives the interest I on a principal P
invested at a rate of R% per annum for T years.
a) Find the interest when GH¢5000 is
invested at 5%p. a. for 2 years.
b) Find the principal that gains an
interest of GH¢2590 in 5 years a
t 2%
per annum.​

a) P = N 150000

R = 5%

T = 5 years

Plug in the values P,R & T in the  formula

I = PRT

1=150000 x 5/100 x 4

= 1500 x 5 x 4

I = N 30000

b) I = N 16100

R = 7%

T = 5 years

PRT= I

P x 7/100 x 5=16100

P= 16100 x 100/7x5

P= N 46000

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step-by-step explanation: g=6

solution:

we have to construct

∠m nt ≅ ∠p qr

the steps to draw this construction are

step 1: use a compass to draw an arc from point q which intersects the side pq at point a and the side qr at point b.

step 2: draw a segment nt and use the same width of the compass to draw an arc from point n which intersects the segment nt at a point x.

step 3:

step 4: join points n and y using a straightedge.

step 3:

option (d).maintaining the same width of the compass as ab, draw an arc from point x such that it intersects the arc drawn from n in a point y.

to draw   congruent angles , 1. width of compasses while drawing two angles should be same i.e from point at which angle has to be drawn, 2.the distance between the two points where the compass intersects the two sides should be same while drawing any two congruent angles.