Answer:21
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
If we consider half the first purchase, it is
2 used + 1 new = $42
And the second purchase is
6 used + 1 new = $78
Subtracting the first of these equations from the second, we get ...
4 used = $(78 -42) = $36
used = $9 . . . . . . . . . . . . . . divide by 4
Then we can find the price of a new game from ...
new = $42 - 2 used = $42 -2·9 = $24
___
The number of used games Janet can purchase on her budget is ...
($120 -3·$24)/$9 = $48/$9 = 5 1/3 ≈ 5
Janet can purchase 5 used and 3 new video games for $120. (and have $3 left)
Answer
2
Step-by-step explanation:
(reorder terms)
<u>2x + 2x</u> = 8
collect like terms
<u>4x=8</u>
divide both sides of the equation
x = 2
Answer:
-4, 2 i don't really know what to do
Step-by-step explanation:
Answer:
x
=
2
+ √
42
, 2 − √
42
Decimal Form:
x
=
8.48074069
, −
4.48074069
Step-by-step explanation:
Solve the equation for x by finding a
, b
, and c of the quadratic then applying the quadratic formula.
