Answer:
$60
Step-by-step explanation:
Jason saved gas money (x). Maria saved $20 more than double what Jason has (20 + 2x). Combined, they saved $200. Solve for x for Jason's amount.
(x) + (20 + 2x) = 200
x + 20 + 2x = 200
3x + 20 = 200
3x + 20 = 200
3x + 20 - 20 = 200 - 20
3x = 180
3x/3 = 180/3
x = 60
Jason saved $60 for this trip.
Suppose x grams of 8% solution should be mixed to make 100 g of 3% solution.
here we shall have:
the amount of 3% solution in the 100 g will be:
3/100*100=3 grams
the the equation will be, 8% of what quantity becomes 3g?
(8/100)*x=3
hence solving for x we shall have:
0.08x=3
x=3/0.08
x= 37.8 grams
The implication of this is that, when you have 37.5 grams of 8% solution, that will contain 3 of pure chemical and hence when you add more solvent on top of 37.5 g until you reach 100g, that will be 3% solution.
Answer:
I don't know what your asking here but if you could maybe be more specific, then maybe I could help.
Step-by-step explanation:
Needs more information.
Answer:
Step-by-step explanation:
6) a) Cost = 12.40 x 0.6 = $7.44
b) Cost = 12.40 x 0.05 = $0.62
Answer: 
Step-by-step explanation:
<h3>
The missing data is: " The cost of renting a conoe to use on River Y costs $28. The cost of renting a conoe to use on River Z costs $3 per hour plus a $13 deposit".</h3>
Let's find the first equation.
You know that the cost of renting a conoe to use on River Y costs $28. This is:
To find the second equation you need to remember the Slope-Intercept form of a Linear equation. This is:
Where "m" is the slope and "b" is the y-intercept.
Since the cost of renting a conoe to use on River Z costs $3 per hour plus a $13 deposit, you can identify that:
Therefore, the equation that represents this situation is:
So, the System of equations that could be used to find the total cost "c" of renting a canoe for "n" hours, is:
