solve A=p + Prt for t if A =652 P= 400 and r = 0.07?

5 ⤊

can someone help me with this please

2007-11-28 12:43:49 · 3 answers · asked by T P 1 in Science & Mathematics ➔ Mathematics

[10]
A=P+Prt
Prt=A-P
t=(A-P)/Pr [dividing both sides by Pr]
=(652-400)/(400*0.07)
=252/28
=9
Therefore t=9 years

2007-11-28 12:54:34 · answer #1 · answered by alpha 7 · 2⤊ 2⤋

Prt = A - P
t = (A - P) / (Pr)
t = (652 - 400) / (28)
t = (252) / 28
t = 9

Note
You have used P and p.
Should be one or the other.

2007-11-29 07:10:51 · answer #2 · answered by Como 7 · 2⤊ 1⤋

652 = 400 + 400(.07)t
252 = 28t
9 = t

2007-11-28 20:48:01 · answer #3 · answered by Ms. Exxclusive 5 · 1⤊ 1⤋