Answer:
4
Step-by-step explanation:
We know that oppostie sides of a rectange have to be equal
therefore
18=10+2x
solve for x
8=2x
x=4
Answer:
The answer is -15
Step-by-step explanation:
(-5)3 is the same as -5 × 3
So we know that it's already 5 seconds behind on the first day.
On the second day, it's 6 seconds behind.
And on the third, it's 7 seconds behind.
And so on...
The difference between the day, and the seconds is 4.
This means, that whatever day it is (say 17 for example), and add 4, will come to how many seconds behind (17 + 4 = 21 in this case)!
So we subtract 29 by 4, to find the day:
29 - 4 = 25 days.
Answer: 6(x)+76 = 6(13)+76 = 154 degrees. They are supplementary angle, which are equal to 180 degrees.
Step-by-step explanation:
9x - 91 + 6x + 76 = 180
15x - 15 = 180
15x = 195
x = 13
