Multiplying both sides of the equation by 3 and substituting 4 for p
You must rewrite the formula for t.
x = t - yz
-t = -x - yz
t = x + yz
Answer:
add the both percentages, get 24.25% of $12000, and add to the $12000
2) get 9.25% of $12000
Answer:
The number of nickels, x is 4
The number of dimes, y is 16.
Explanation:
Given that Melanie has $1.80 worth of nickels and dimes, and she has 12 more nickels than dime.
Let x represent the number of nickels and y represent the number of dimes.
Then we have:
0.05x + 0.1y = 1.80 ...................................................(1)
x + 12 = y.....................................................................(2)
Solving these equations using graph as follow:
Note that the solution are the points where the lines intersect.
Here, x = 4 and y = 16