5. Solve the proportion using cross product
18/20 = k/110
A. 99 (my answer)
B. 122
C. 33
D. 2.9 (my answer)
The reason why I picked 2 of them were because I'm stuck between the two
20 k = 1980
k = 99 yes correct
Thank u so much
You are welcome :)
can i get an explanation because i'm doing a correction?
Thanks
thx
To solve the proportion using cross products, you need to set up an equation where the cross products are equal. Let's solve the proportion:
18/20 = k/110
Cross multiplying means multiplying the numerator of one ratio with the denominator of the other ratio. In this case, you would multiply 18 with 110, and 20 with k.
(18)(110) = (20)(k)
1980 = 20k
To solve for k, divide both sides of the equation by 20:
1980/20 = k
k = 99
So, the value of k is 99. This corresponds to option A in the given choices. Therefore, the correct answer is A.