A bag contains n nickels and a quarters worth a total of $40. Which equation models this information?
A. 0.5n+0.25q = 40
B. n+q= 40
C. 5n+257 = 40
D. 0.05n+ 0.250 = 40

A nickel is worth 0.05 and a quarter is worth 0.25.

Multiply number of nickels by the worth and quarters by their worths. Add together to equal total value:

The equation is:

0.05n + 0.25q = $40

x = 17

step-by-step explanation:

in the given figure, two triangles are inscribed in a circle where ∠bae ≅ ∠dae which makes the side be and de equal so we can write it as:

3x - 24 = x + 10

solving this equation for x to get:

3x - x = 10 + 24

2x = 34

x = 34/2

x = 17

therefore, the value of x = 17.