Answer:

Step-by-step explanation
The slope of a perpendicular line would be (-x) if the slope of the original line was (x).
The formula for finding slope is:

Inserting your problem would make the equation look like:

Simplify:

That is the slope of the given line, to find the slope of the line perpendicular to that one, we would put into (-x)
Answer:

Answer:
3
Step-by-step explanation:
Because 30 divided by 5 =6 which is the miles so divide 15 by 5 and the minutes are 6 so 6x5 so 3
Answer:
12 cm
Step-by-step explanation:
2x4=8
3x4=12
Thats why
Answer:
95
Step-by-step explanation:
30+30 is 60
60+35 is 95
Another way to do this is to use multiplication then add. (30x2=60)
Hope I helped!
x + 2y = 9
x + 3y = 13
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Solve for x in the first equation. Subtract 2y from both sides.
x = 9 - 2y
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Plug x into the second equation.
(9 - 2y) + 3y = 13
Combine like terms.
9 + y = 13
Subtract 9 from both sides.
y = 4
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Plug y back into the first equation.
x + 2(4) = 9
x + 8 = 9
Subtract 8 from both sides.
x = 1
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x = 1
y = 4