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Answer:
So for the first spinner, the probability of the arrow pointing to blue on a spin is 1/4, the probability of it pointing to green is 1/4 and so on. This assumes that each section is the same physical size.
Step-by-step explanation:
42 cakes in 7 days, that's 42/7= 6 cakes per day
6*5=30
2x + y = 8
x - y = 10
--------------add
3x = 18
x = 6
x - y = 10
6 - y = 10
-y = 10 - 6
-y = 4
y = -4
solution is : (6,-4)
I'm confused on what you're asking, but this is scientific notation on the first one of 0.0000855. 8.55 x 10^-5