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22-01-2022
Mathematics

contestada

At what rate will 400 yield and interest of 78 in 1 1/2 years

Respuesta :

Collinzo Collinzo

26-01-2022

Step-by-step explanation:

i = {P×R×T}÷ 100

substitute the terms

78 = (400×R×1.5)÷100

which is 78=6R

divide both sides by the coefficient of R

78\6 = 6R/6

which is 13 = R

so the rate is 13percent

I = interest

p is principal

r is rate

t is time

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