245, if x represents the number of minutes then you use 5 where x would be in the function so 49(5) which is 245 jumping jacks in 5 minutes.
9514 1404 393
Answer:
y = -3x -1
Step-by-step explanation:
We can write the equation in slope-intercept form if we know the slope and the y-intercept.
The slope is ...
m = "rise"/"run" = (change in y)/(change in x)
We can see that the line passes through grid intersections at (x, y) = (0, -1) and at (1, -4). Between these two points, the change in y is (-4 -(-1)) = -3, and the change in x is (1 -0) = 1. Then the slope is ...
m = -3/1 = -3
One of the points we just used is the point where the line crosses the y-axis, at the y-intercept of -1. So, with slope -3 and y-intercept -1, the equation of the line is ...
y = mx +b . . . . . . slope m and y-intercept b
y = -3x -1
Answer:
??????????????????? 3+1
Step-by-step explanation:
The first one is 23/30 and the second one is 2 19/24
Angles (7x+17)° and (5x-5)° are consecutive interior angles, that means they add up to 180<span>°.
So we can make an equation to solve for x, which eventually will help us solve for y.
180</span> = (7x+17) + (5x -5)
re arrange that:
180 = 7x + 5x + 17 - 5
180 = 12x + 12
- 12 -12
168 = <span>12 x
</span> 12 12
14 = x
Now we will plug it into (5x - 5) to help us solve for y,
Angle (5x - 5) and (23y) are supplementary angles, meaning they equal to 180°.
<span> 180 = (23y) + (5(14) - 5)
180 = (23y) + (70 - 5)
180 = 23y + 65
- 65 - 65
<u>115</u> = <u>23y</u>
23 23
___ = y
Good luck!
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