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

User Psycho Brm
by
4.4k points

1 Answer

3 votes

Answer:

12

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

User Abid Nawaz
by
4.7k points