35+2x=20+2.50x
subtract 2.50x
35+0.50x=20
subtract 35 frim both sides
0.50x=-15
x=-30
Answer:
4.65 gallons of acid
Step-by-step explanation:
30% of 5 gallons is 1.5 gal
45% of 7 gallons is 3.15 gal
4.65 gal of acid
Answer:
5.) 352
6.) 125000
7.) 7000
8.) 3900160
9.) 1 pound and 8 ounces
10.) 333.333
Step-by-step explanation: