Answer:
10 cm
Step-by-step explanation:
If we assume that DC is parallel to AB, then triangle DOC is similar to triangle AOB.
However, even with this assumption, there is not enough information in the diagram to solve for DO. We would also need to know the length of CO. Then we could write a proportion:
DO / (DO + 20) = CO / (CO + 24)
Edit: OD is 2 cm shorter than OC. If we call x the length of OD, then the length of OC is x+2.
Putting this into our proportion:
x / (x + 20) = (x + 2) / (x + 2 + 24)
x / (x + 20) = (x + 2) / (x + 26)
Cross multiply:
x (x + 26) = (x + 2) (x + 20)
Distribute:
x² + 26x = x² + 20x + 2x + 40
x² + 26x = x² + 22x + 40
4x = 40
x = 10
So the length of DO is 10 cm.
Answer:
9*100+7*10+2*1
Step-by-step explanation:
hope you like it
I don't imagine you could divide with this since the answer would lead to 0.04 but if so i'm an idiot.
The way i would do it is 12 x 0.56 which makes 6.72. (it just makes sense?)
So for the 0.04 he would get back 9.96
The 6.72 he would get back 3.28
Sorry i considered the possibilities.
Answer: 120 minutes.
Step-by-step explanation:
It takes her 75/10 = 7.5 minutes to run 1 mile. If she wants to run 16 miles, it will taker her 7.5 * 16 = 120 minutes.
Based on property of triangles, if two of the three sides are exactly doubled, so will the resulting length. Both answers are 18.
