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*URGENT HELP???!!!


Suppose that b(x) varies directly with x and b(x) = 4325 when x= 25.


What is b(x) when x =19?


A.) 4325

B.) 3287

C.) 173

D.) 9.1


I can't remember how problems like these are suppose to go and how to write them out, could you tell me how you got the answer once you get it. Thanks ;)

Verified Answer :

answer is B.) 3287
hope that helps
..................................

4325/25 = 173

173 * 19 = 3287

lublana

Answer:

B.3287

Step-by-step explanation:

We are given that

b(x) varies directly with x.

b(x)=4325 when x=25

We have to find the value of b(x) when x=19

According to question

\(b(x)\propto x\)

\(b(x)=kx\)

Where k=Proportionality constant

Substitute the values then we get

\(4325=k(25)\)

\(k=\frac{4325}{25}=173\)

\(k=173\)

Now, substitute the value of k then, we get

\(b(x)=173 x\)

Substitute the value of x=19

Then, we get

\(b(x)=173 \times 19=3287\)

Hence, option B is true.

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