Here is the equation:
43.25 = 1.25t + 7 where t is the number of minutes he was on the trampoline.
Answer: $160
Step-by-step explanation:
80%is the same thing as
Also , since we are using equivalent ratio , we will look for a way to write 200 in order to have equivalent of 100. That is 200 is the same as 100 x 2
Therefore : 80% of a 200 is the same
x 100 x 2
which is the same as 80 x 2
$160
Convert fraction (ratio) 13 / 77 Answer: 16.883116883117%
so just 16.88 :)
Answer:
-3/2
(2x-14)/3
(-2,-6)
Step-by-step explanation:
I solved the first one for you already ( -3/2)
To make a line perpindicular to another line they need to intersect at a 90 degree angle. To do this the slope of the lines have to be the negative reciprical (take the fraction, flip it, and apply a negative sign to it)
If you do this to -3/2 you get 2/3
If we follow our y=mx+b equation from before we (so far) have
2/3x+b=y
which means that we just need to solve for b
We also know that it crosses the point (7,0) which means that if we plug in 7 for x and 0 for y we can solve for b
we have
(2/3)*7+b=0
Solve for B
14/3+b=0
b= -14/3
Which means our equation looks like this
(2x-14)/3
our two equations look like this
(-3/2)x-9
(2x-14)/3
We need to find where their coordinates are the same (where they intersect)
We can do this by setting them equal to each other and then solving for x
we have
(-3/2)x-9=(2x-14)/3
solve for x
-4.5x-27=2x-14
-13= 6.5x
x= -2
Now that we know what x equals we can plug this into any of our two beginning equations
(-3/2)*-2-9=y
3-9=y
-6=y
Which means our coordinates are (-2,-6)
if you have any questions let me know
I think the answer is in Slader ( aka a app) it usually has answers to go math