Answer: The best estimate of the number of miles that Alexia run is 4 miles.
Step-by-step explanation:
Since we have given that
Length of lap is given by
Number of laps around her neighborhood = 3
So, Total number of miles that Alexia ran is given by
Hence, the best estimate of the number of miles that Alexia run is 4 miles
Answer:

Step-by-step explanation:
<u>Step 1: Distribute the plus</u>
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<u>Step 2: Combine like terms</u>
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Answer: 
Answer:
So the vaule of y is 7, 10 & 13
Step-by-step explanation:
Given that y = 3x+1 . So we can just substitute x-value into the equation :
Let x=2,
y = 3(2)+1
= 7
Let x=3,
y = 3(3)+1
= 10
Let x=4,
y = 3(4)+1
= 13
Answer:
3/10
Step-by-step explanation:
- total marbles: 6+9+5 = 20
- blue marbles: 6
- 6/20 = 3/10
X+x+20+2x=180
4x+20=180
4x=160
x=40