T=3vs-4ws+5vw
add 4ws to both sides
T+4ws=3vs+5vw
factor out v
T+4ws=v(3s+5w)
divide both sides by 3s+5s
Answer: the predictive value positive of the test is 0.7
Step-by-step explanation:
Given that;
Predicted
Diesease No-Diesease Tt
Actual Diesease 225 75 300
No-Diesease 25 175 200
250 250 500
so finding the predictive value positive of the test,
predictive negative value = (175 / (75+175) )
= 175 / 250
= 0.7
Therefore the predictive value positive of the test is 0.7
Answer:
12/7=x
Hope this helps :)
Step-by-step explanation:
1. subtract 7 from both sides of the equation.
2.Simplify.
3. Divide both sides of the equation by the same term.
4.Simplify.
To determine the equation of the normal price, set the equation.
Total = t; cookie = c; normal = n; original (price)= o
t = n(c)
Right now, if you buy 7 of them, it will cost 2.80
2.80 = n(7)
Isolate the n. Divide 7 from both sides
(2.80)/7 = (7n)/7
n = 2.80/7
n = 0.40
normal price is 40 cents.
You are finding the original price = o
o = 0.40 + 0.75
o = 1.15
Equation for each cookie original price:
t = o(c)
original price: $1.15
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