Hi there, Rukie! This problem can be solved by divided the number given by one of the ratios, and multiplying that answer by the other ratio. Since Bob invested the greater amount, we can divide his investment ($450) by 8, getting the answer of 56.25 (that's the unit of the ratio). We can then multiply that number by 7 to calculate Ellen's investment, which comes out to be $393 dollar and 75 cents. Hope that helps!
Answer:
<h3>NO SOLUTIONS</h3>
Step-by-step explanation:
To solve this problem, first, you have to isolate x on one side of the equation.
3x/2-2>7
3x/2-2-7>7-7 (First, subtract 7 from both sides.)
7-7 (Solve.)
7-7=0
3x/2-2-7>0
3x/2-2*0-7*0>0*0 (Then, multiply 0 from both sides.)
0*0 (Solve & simplify.)
0*0=0 (undefined & no solutions)
In conclusion, there are no solutions.
Answer:
-50 cents
Step-by-step explanation:
The "Winnings" random variable has values -1 and 499
The associated probabilities are P(-1)= 999/1000; P(499)=1/1000
-----------------------------
Expected Value = -1(999/1000) + 499(1/1000) = -500/1000 = -50 cents
Answer:
4 cm
Step-by-step explanation:
Perimeter = 18cm
θ = 2.5 radian
s = rθ, s = Arc length
Perimeter of Sector, P = arc length, s + 2r
Perimeter = rθ + 2r
r = Radius
18cm = r(2.5) + 2r
18cm = 2.5r + 2r
18cm = 4.5r
r = 18 /4.5
r = 4
