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Vaselesa [24]
3 years ago
15

I need help on this.

Mathematics
2 answers:
matrenka [14]3 years ago
7 0

Answer:

f = 1

Step-by-step explanation:

Cross multiply.

f (20) = 5 (f + 3)

20f = 5 (f+3)

20f = 5 (f ) + 5 (3)

20f = 5f + 15

20f = 5f + 15

-5f - 5f

15f = 15

15f/15 = 15/15

f = 15/15

f = 1

victus00 [196]3 years ago
4 0

Answer:

.75


Step-by-step explanation:

Not sure

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