Answer:
i don't now
Step-by-step explanation:
Answer:
m= - 1/4
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
(20a - 1) ÷ b
a = 2
b = 13
(20(2) - 1) ÷ 13
(40-1)÷13
39÷ 13
= 3
Answer:
y = -1/2x+1
Step-by-step explanation:
First step is to find the slope
m = (y2-y1)/(x2-x1)
= ( 4-2)/(-6 - -2)
(4-2)/(-6+2)
2/-4
-1/2
Then we can use the slope intercept form of a line
y = mx+b where m is the slope and b is the y intercept
y = -1/2x+b
Substitute a point into the equation to find b
2 = -1/2(-2) +b
2 = 1+b
Subtract 1 from each side
1 =b
y = -1/2x+1
Answer: 45
Explanation:
When finding the equations for the numbers, remember that it is not three consecutive numbers: it is three CONSECUTIVE ODD numbers. Thus:
First number = x
Second number = x + 2
Third number = x + 4 (second number + 2)
x + x + 2 + x + 4 = 141
3x + 6 = 141
3x = 135
x = 45
This tells us that the smallest number (x) is 45. To check our answer, we can plug this value in for x:
45 + 45 + 2 + 45 + 4 = 141
141 = 141
This also tells us that the other two numbers would be 47 and 49, and 45 + 47 + 49 also equals 141.
