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dybincka [34]
3 years ago
12

R varies directly as s. Find r when s=10 and k=4

Mathematics
2 answers:
nadezda [96]3 years ago
5 0

Step-by-step explanation:

Since, r varies directly as s

\therefore \: r \:  \:  \alpha \:  \: s \\  \therefore \: r  = k s..(1) \:  \\ (k =  \: constant \: of \: proportionality ) \\ plug \: s = 10 \: and \: k = 4 \:  in \: equation \: (1) \\ r = 4 \times 10 \\ \huge \red{ \boxed{ \therefore \: r  =40}}

fredd [130]3 years ago
4 0

Answer:

40

Step-by-step explanation:

r = ks = 4(10) = 40

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