The first thing we should know is the value of each currency:
nickels = 0.05 $
dimes = 0.1 $
Let
x: number of nickels
y: number of dimes
We write the system of equations:
0.05x + 0.1y = 6.30
x + y = 100
To find the solution, you can graph both lines. The intersection between both lines is the number of nickels and dimes.
answer
Graph both lines in the same Cartesian plane and see where they intersect.
Answer:
x= 32 i think
CD= 51
Step-by-step explanation:
Answer:
162m²
Step-by-step explanation:
distance from corner to center = 1/2 of the diagonal
all sides are equal, and this has 4 sides, so it is a square
9m = 1/2 of diagonal
multiply both sides by 2 to isolate the diagonal
18m = diagonal
area of square = length²
length * √2 = diagonal
given the diagonal, we can find the length and then the area
length * √2 = diagonal
divide both sides by √2 to find the length
18m/√2 = length ≈12.7
square the length to find the area
area = 162 m²
Answer:
3/8
Step-by-step explanation:
1/2 X 9/12 = 9/24 = 3/8
