Answer:
The cost for each movie is $2
The cost for each video game is $6.5
Step-by-step explanation:
Let
x-----> the cost for each movie
y-----> the cost for each video game
we know that
5x+2y=23 -----> equation A
3x+8y=58 -----> equation B
Solve the system of equations by graphing
Remember that
The solution of the system of equations is the interception point both graphs
The solution is the point (2,6.5)
see the attached figure
therefore
The cost for each movie is $2
The cost for each video game is $6.5
your correct answer should be: z = (x - mean) / SD = (79 - 70) / 3 = 3
P (Z > 3)? = 1 - F (z) = 1 - F (3) = 0.00135 i hope this is helpful! :D
Answer:
Step-by-step explanation:
how many touch downs did the team get?
9514 1404 393
Answer:
Step-by-step explanation:
If x is an odd integer, the next greater odd integer is x+2. The product is said to be 63, so the equation is ...
x(x +2) = 63
__
The equation can be rewritten as ...
(x +1)² = 64
x = -1 ±√64 = -1 ±8
The positive solution is x=7, so the positive set of integers is {7, 9}.
The negative solution is x=-9, so the negative set of integers is {-9, -7}.