Answer:
Deb will have $93.17 in 3 years
Step-by-step explanation:
FV = P(1 + r)^n
FV = 70(1+0.1)^3
FV = 70(1.331)
FV = 93.17
0.4 * x = 68
x = 68/0.4
x = 170
check:
0.4 * 170 = 68
$3.78
because he is paid $0.14 per pound, if he brings 27 pounds it is
=0.14 x 27
=3.78
Shorter <span>piece = x
longer </span><span>piece = 4x
x + 4x = 48.5
5x = 48.5
x = 48.5/5
x = 9.7 cm </span>← shorter piece
longer piece = 4x = 4 * 9.7 = 38.8 cm