Answer:
a) 21 nickels and 2 dimes
b) 
c) There are 13 nickels and 6 dimes
d) The point (13,6) a solution to the equation you wrote
Step-by-step explanation:
Let x be the number of nickels and y be the number of dimes in Priya's pocket.
1 nickel = 5 cents
x nickels = 5x cents
1 dime = 10 cents
y dimes = 10y cents
b. Total amount in nickels and dimes is 
cents that is $1.25. Convert $1.25 into cents:
so the equation that describes the relationship between the number of dimes and number of nickels is
a. To find one possible solution, substitute an arbitrary value of y and find x. Let y = 2, then
21 nickels and 2 dimes
c. The point (13,6) means that there are 13 nickels and 6 dimes.
d. Substitute x = 13 and y = 6 intoe the equation and check whether it is true:
True, so the point (13,6) a solution to the equation you wrote
I’m guessing that this is for systems of equations?
n - nickels
d - dimes
These are the equations you start off with.
n = 5d-2
0.95 = 0.10d+0.05n
Substitute the top equation for n into the variable n in the bottom equation.
0.95 = 0.10d+0.05(5d-2)
Solve for d.
0.95 = 0.10d+0.25d-0.10
1.05 = 0.35d
3 = d
Substitute d into the top equation and solve for n.
n = 5(3)-2
n = 15-3
n = 12
There are 3 dimes and 12 nickels in the coin purse! Hope this helped <3
Answer:
W = 5 + 13.50s
Step-by-step explanation:
Answer:
16,800 Liters
Step-by-step explanation:
Convert 3/4 into eighths, because it was already 1/8 full before the 10,500 liters were added:
3/4= 6/8
Subtract 1/8 from that (because it was already 1/8 full):
6/8-1/8= 5/8
Divide 10,500 by the 5 (because you want how many liters each part is):
10,500/5= 2,100
You know can say that every eighth is 2,100 Liters of water.
Multiply that by the 8 total parts it can hold:
2,100x8= 16,800 Liters
