The answer is =324°*(\pi )/(180<span>°</span>)
(2x+1)=Jeremy´s age
(2x+3)=Sam´s age.
we suggest this equation:
(2x+1)(2x+3)=783
4x²+6x+2x+3=783
4x²+8x-780=0
x²+2x-195=0
We solve this quadratic equation:
x=[-2⁺₋√(4-4*1*(-195))]/2=(-2⁺₋28)/2
x₁=(-2-28)/2=-15 this solution is not valid.
x₂=(-2+28)/2=13
Jeremy´s age=2x+1=2*13+1=27
Sam´s age=2x+3=2*13+3=29
It is given in the question that
After being discounted 40%, a weather radio sells for $35.97.
It means the weather radio sells at a 60% of original price.
Let the original price be $x.
Therefore according to the question,
Therefore the original price of the weather radio is $59.95.
Answer: 2:5
Step-by-step explanation: a simple memorization is to add the 2 parts of the ratio (5) and keep the original part (2) and thus you get 2:5
this is how my geometry teacher taught it.
