Answer and Step-by-step explanation:
For these system of equations, it would be easier to use the substitution method, as we are have one equation that is being equaled to a variable.
Plug the second equation into the value of b for the first equation.
5a + 3(-2a + 3) = 11
Distribute the 3.
5a - 6a + 3 = 11
Simplify.
-a + 3 = 11
Subtract 3 from both sides of the equation.
-a = 8
Divide both sides by -1.
a = -8
Now, we can plug this value into the second equation.
-2(-8) + 3 = b
Multiply -2 and -8 together.
16 + 3 = b
Add together 16 and 3.
19 = b
<u>a = -8</u>
<u>b = 19</u>
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Answer:
The answer is -2.5.
Step-by-step explanation:
This is because the distance between -9 and 4 is 14 units. And the two numbers in the middle are -3 and -2, so -3 plus -2 equal -5 and -5 divided by 2 equals -2.5.
72 miles ... 6 inches
x miles = ? ... 1 inch
If you would like to know the scale of the map, you can calculate this using the following steps:
72 * 1 = 6 * x
72 = 6 * x /6
x = 72 / 6
x = 12 miles
Result: 12 miles represent 1 inch on the map.
Answer:
C. an open circle with the arrow going to the right
Step-by-step explanation:
x > -19
Since there is no equals bar, there is an open circle at -19
X is greater so the line goes to the right
