Question

Interest rates have dropped steadily over the last six months. Each month they have decreased by 1/4 point.

Answer 1

Answer:

a R%/12 - 6(25%)

b 6 5/6

Step-by-step explanation:

Interest rates have dropped steadily over the last six months. Each month they have decreased by 1/4 point

SOLUTION

Let interest rate = R% per annum

each month it decreases by 1/4 point

for a month = R%/12

thus 1/4 = 1/4 x 100 = 25%

first month

R%/12 - 25%

for six months

R%/12 - 6(25%)

assume R = 100%

b total change  = 100/12 - 6 x 25/100

= 100/12 - 150/100 = 41/6 = 6 5/6

Answer 2

Answer:

FOR A: $y=-1.5x$

FOR B: $\frac{-x}{2}$

Step-by-step explanation:

A: Each month Interest rate decreases by $\frac{1}{4}$ point.

B: Simplification

I honestly really hope this helps you!