The model should be scaled so that 1 centimeter equals 250 miles.
77 is the answer because 3×7=21 21+56=77
Answer
Example 1 Solve for x and check: x + 5 = 3
Solution
Using the same procedures learned in chapter 2, we subtract 5 from each side of the equation obtaining
Example 2 Solve for x and check: - 3x = 12
Solution
Dividing each side by -3, we obtain
Step-by-step explanation: here is your anserw the let me know if it right
3a=11-2
3a=9
---------
9/3=3
---------
A=3
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Not sure on the second one.
Answer:
x < 10/7
Step-by-step explanation:
7x/2 < 5
multiply eech side by the reciprocal(2/7)
x < 10/7