9514 1404 393
Answer:
D. (-3, -2)
Step-by-step explanation:
The equations have different coefficients for x and y, so will have one solution. The solutions offered are easily tested in either equation.
Using (x, y) = (-2, -3):
x = y -1 ⇒ -2 = -3 -1 . . . . False
Using (x, y) = (-3, -2):
x = y -1 ⇒ -3 = -2 -1 . . . .True
2x = 3y ⇒ 2(-3) = 3(-2) . . . . True
The solution is (-3, -2).
__
If you'd like to solve the set of equations, substitution for x works nicely.
2(y -1) = 3y
2y -2 = 3y . . eliminate parentheses
-2 = y . . . . . . subtract 2y
x = -2 -1 = -3
The solution is (x, y) = (-3, -2).
Since 1 meter is equivalent to 39.37 inches,
then we convert:
3 meters * (39.37 inches / 1 meter)
= 118.11 inches
The <u>correct answer</u> is:
C) The distance of the race.
Explanation:
If one variable is written as a function of another, this means there is a relationship between the two variables.
There will be a relationship between the time it takes to finish a race and the distance of the race. The longer the distance of a race is, the more time it will take to finish it. Therefore the time can be written as a function of the distance.
<u>Equation/Question:</u>
2/5 x 2/3 = ?
<u>Answer/Steps to answer:</u>
1. Use this rule: a/b x c/d = ac/bd
2x2/5x3
2. Simplify 2×2 to 4.
4/5x3
3. Simplify 5×3 to 15.
<u>4/15</u>
<u></u>
<u>Done by NeighborhoodDealer</u>
Answer:
C
Step-by-step explanation:
Its not A because The left side 6 is not less than the right side 5, which means that the given statement is false.
Its not B because The left side 6 is not less than the right side 5, which means that the given statement is false.
Its C because The left side 5 is less than the right side 6, which means that the given statement is always true.
Its not D because The left side is 5 is not less than the right side 6, which means that the given statement is false.
