This is an arithmetic series,
so
S(n) = (n/2)*(a(1)+a(n))
S(25) = (25/2)*(a(1)+a(25))
n=25
a(n) = 3n-2
a(1)= 3*1-2=1
a(1)=1
a(25) = 3*25-2=75-2=73
a(25)=73
S(25) = (25/2)*(1+73)=(25/2)*74=925
S(25)=925
Answer : 925
Answer:
A)
Step-by-step explanation:
(f+g)(x) = f(x) + g(x)
now plug in the expressions of f(x) and g(x) :
(f+g)(x) = 
we combine like terms we get :
(f+g)(x) = 
we simplify we get :
(f+g)(x)=
so the answer is A)
A ratio shows us the number of times a number contains another number. The amount barely needed for 300 ml of milk is 45 grams.
<h3>What is a Ratio?</h3>
A ratio shows us the number of times a number contains another number.
The need for barley in 200 ml of milk is 30 grams, therefore, the need for barley in 1 ml of milk can be written as,
Need of barely in 1 ml of milk = 30/200
Now, the amount of barely that will be needed for 300 ml of milk will be,
The amount of barely in 300 ml of milk = (30/200)×300 = 45 grams.
Hence, the amount barely needed for 300 ml of milk is 45 grams.
Learn more about Ratios:
brainly.com/question/1504221
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Answer:
Step-by-step explanation:
There’s no equations to pick from
