The answer should be -37.5 feet unless it is 15 more hours then it is -97.5
75 + 25 x = 30 + 40 x
x = 3
If you rent them for 3 hours they have the same payment of 150
<span>Let the amount invested at 4% be $100X
THEN , the amount invested at 5% WILL BE $200X
Interest earned = 4X + 10X = 266
14X = 266
X = 19 </span>
Answer:
16
Step-by-step explanation:
90/27 = 3
50/3 = 16
Ni : Zn: Cu = 7:2:9 =7x : 2x : 9x
7x+2x+9x = 3.8
18x=3.8
x=3.8/18=1.9/9≈0.21
Ni: 7x=7*0.21=1.47 ≈1.5 kg
Zn: 2x=2*0.21=0.42≈0.4 kg
Cu: 9x=9*0.21=1.89 ≈1.9 kg
Check 1.5+0.4+1.9 =3.8 True
