Answer:
158
Step-by-step explanation:
In order to make 441 liters of Petrolyn oil, we need 189 liters of synthetic oil.
Given, for every 3 liters of synthetic oil, we use 4 liters of natural oil.
⇒ For 1 liter of synthetic oil, we will be adding 4/3 liters of natural oil.
Let 'x' be the liters of oil needed to make 441 liters of Petrolyn oil
⇒ For 'x' liters of synthetic oil, we will need 4x/3 liters of natural oil
Total Volume = 441 liters
Volume of Synthetic oil + Volume of natural oil = 441
x + 4x/3 = 441
⇒ (3x + 4x)/3 = 441
⇒ 7x/3 = 441
⇒ x = (441×3)/7
⇒ x = 189 liters
To know more about liters :
brainly.com/question/2418593
#SPJ1
N+d=34
.05n+.10d=2.60
Solve by substitution
n=34-d
.05(34-d)+.10d=2.60
1.7-.05d+.10d=2.60
.05d=.90
d=18 dimes
18+n=34
n=16 nickles
The second one y bc I did this test already
