A dozen = 12.
Two dozen = 24
Set up a proportion:
Then we need to solve for X (the amount of money she paid)
Cross multiply to get 3x = 24(.99)
3x = 23.76
x= $7.92
Or you can do it another way if you knew 3 goes into 24 8 times, so you can multiply .99x8 = $7.92
Answer:
The solution is -22
Step-by-step explanation:
<em>The solution of an equation is the value of the variable of the equation</em>
∵ -(4x - 3) = -7(9 + x)
→ Simplify each side
∵ -(4x) - -(3) = -7(9) + -7(x)
∴ (-4x) - (-3) = -63 + (-7x)
→ Remember (-)(-) = (+) and (-)(+) = (-)
∴ -4x + 3 = -63 - 7x
→ Add 7x to both sides
∴ -4x + 7x + 3 = -63 - 7x + 7x
∴ 3x + 3 = -63
→ Subtract 3 from both sides
∵ 3x + 3 - 3 = -63 - 3
∴ 3x = -66
→ Divide both sides by 3
∴ x = -22
∴ The solution is -22
Answer:
B(12)
Step-by-step explanation:
Constant of proportionality is basically the slope.
Slope = Δy/Δx
here y= distance travelled and x= number of hours
so slope = 36-3/3-0.25= 33/2.75 = 12