X = mary's shells
g = 1 1/4x + 5
n = 1 1/2x+ 1
g = n
1 1/4x + 5 = 1 1/2x + 1
5/4x + 5 = 3/2x + 1...multiply by common denominator of 4, this will get rid of fractions...however, this is optional...u can work with fractions if u wish.
5x + 20 = 6x + 4
5x - 6x = 4 - 20
-x = - 16
x = 16....so Mary has 16 shells

she should have invested P, in order to get I = 6500
but she instead invested 17,801, how much more did she need? well, P - 17801
solve for P
Answer:$52.25
Step-by-step explanation:
8.75x + 6.50y
X = 3, y = 4
(8.75 x 3) + (6.50 x 4)
26.25 +26
$52.25
Answer:
60
Step-by-step explanation:
The answer is (D) hope the is helps