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uysha [10]
3 years ago
6

Need help ASAP! I know I am dumb.. But.. 3/7=?/28 What is the ? mark?

Mathematics
1 answer:
Nookie1986 [14]3 years ago
3 0

Answer:

12

Step-by-step explanation:

write it out:

3/7 x x/28

cross-multiply and solve:

3*28 and 7x

3 x 28 = 84

make an expression:

84 = 7x

solve the expression:

7x/7 = 1

84/7 = 12

x =12

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