Answer:
n = 12 nickels
d = 11 dimes
q = 7 quarters
Step-by-step explanation:
.05n + .1d + .25q = 3.45
n + d + q = 30
n = q + 5
n = 12
d = 11
q = 7
Right now we have:
5kx + 6 = 7kx
First, divide both sides by k to eliminate that variable:
5x + 6 = 7x
Then subtract 5x from each side:
6 = 2x
Lastly, divide each side by 2 to solve for x:
3 = x
Hope this helps!
We need to find the hypotenuse of the triangle. We can find that by using the Pythagorean theorem: a² + b² = c²
Solve with the given values of the triangle:
2² + 4² = c²
4 + 16 = c²
20 = c²
√20 = √c²
4.47 ≈ c
Find the area of the square using: A = bh
4.47 * 4.47 = 19.9809
Therefore, the area of the square is approximately 19.9809units²
Best of Luck!
Answer:
5/21
Step-by-step explanation:
1/7 + 2/21 = ?
lcd of 7 and 21 is 21 so;
( 2/21 x 1/1) + 1/7 x 3/3) = 5/21
Answer:
-9
Step-by-step explanation: It crosses the y axis. A y intercept is in when the x axis is 0. So the point would be (0,-9).
