10% of the time Spencer runs in pre-athletics he comes in first place. If he runs 30 times, how many times is he in first place?
1 answer:
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Check the picture below.
running a perpendicular line like so from the right-angle, makes three similar triangles, the large, containing the smaller ones, and a medium and a small one. Now, using proportions, you can just use there, the medium and smalle to get "x".
running a perpendicular line like so from the right-angle, makes three similar triangles, the large, containing the smaller ones, and a medium and a small one. Now, using proportions, you can just use there, the medium and smalle to get "x".
Answer:
Step-by-step explanation:
88 can be rewritten as 8 x 10 and 8 can be rewritten as making a 2 come out of the root.
10 can be rewritten as 2 x 5.
2*2 can also be rewritten as making a 2 come out of the root.
We can't keep simplifying the root.