I know that the first one is the (sum) of a number x and 8.1 but im not sure about the rest im sorry
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:
45.4°
Step-by-step explanation:
The angle and side lengths in a right triangle are related by ...
Sin = Opposite/Hypotenuse
sin(S) = TU/TS = 3.7/5.2
Using the inverse sine function, we have ...
∠S = arcsin(3.7/52)
∠S ≈ 45.4°
Answer:
43.49
Step-by-step explanation:
let his normal hourly rate be x
16x+7x/2=848
39x/2=848
x=848 ÷ 39/2
=43.48717
