ellisc7044
19.09.2019 •
Mathematics
Adoes not equal b and 1/x+1/a=1/b, then x=
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Ответ:
Multiply both sides by x, then a, then b
x(1 + 1/a) = x(1/b)
x • a • 2 = b • x • a
Divide by x, then a
b = 2
Ответ:
bank R for 1 year
Step-by-step explanation:
Given
Principal deposit is
Bank Q offers 1% interest compounded annually
Bank R offers 1.5% simple interest annually
For Bank Q, Compound interest is given by
for 1 year it is
For bank R, simple interest is
for 1 year it is
Clearly, bank R offers more interest for 1 year