$\bf \begin{array}{llll}
-5x-y=5\\
-5x+y=5\\
-------\\
-10x+0=10
\end{array}\implies -10x=10\implies x=-1$

so if x = -1, let's plug that in the second equation

-5(-1)+y = 5
5+y = 5
y = 0

7 0

3 years ago

Christy dove to a depth of 12 feet below the surface of the water write the depth as an integer

Varvara68 [4.7K]

If we use the surface of the water as our frame of reference, then Christy's vertical position could be represented by -12 ft.

4 0

3 years ago

At a high school, 18% of the students play football and 6% of the students play football and baseball. What is the probability t

hjlf

We are given the fact that he plays football, so the probability of his being a football player is 100%.
We know that 1/3 of the football players also play baseball, so the probability that he is also a baseball player is 1/3.

4 0

3 years ago