Answer:
Steve has a total of $140.
Step-by-step explanation:
At first, we know that Steve has $140.50. Next, he loaned $50 to a friend. This tells us that this money went out of his account.
140.50 - 50 = $90.50
So now, Steve has only $90.50 left.
Then, he spent $31.25. This also tells us that his went out of his account, so we must subtract it.
90.50 - 31.25 = $59.25
Now, Steve has $59.25 left.
Finally, Steve received an $80.75 paycheck from work. This tells us that this money went in to his account.
59.25 + 80.75 = $140
Therefore, Steve now has a total of $140.
6 months -> 18 books
1 month -> 18/6 = 3 books
15 months -> 3 x 15 = 45 books
Answer:
(-7,2)
Step-by-step explanation:
3x+8y=-5
-2x+2y=18
so first of all, you want either x or y to be the same for both equations <em>(it can be negative or positive but has to be the same number)</em>
to do that, we'll multiply them:
I'll do y because it is easier
(-2x+2y=18) 4
<u>-8x+8y=72</u>
<u>3x+8y=-5
</u>
the y's now match
let's subtract them because they're both positive
-8x - 3x = -11x
8y - 8y = 0
72 - (-5) = 77
so -11x = 77
which results to x = -7
now we need the y.
to do that, we simply plug in the x in any of the equations:
-2x+2y=18
-2 (-7) + 2y = 18
14 + 2y = 18
2y = 4
y = 2
so the answer is (-7,2) if you're looking for a point
Answer:
no
Step-by-step explanation:
coordinates pair (2,11) does not go with the inequality
<span>In a triangle the sum of two sides is always greater than the third side.
9-9 < x < 9+9
0 < x < 18 </span>← answer