Let gift box be x and the Christmas tree be y.
<u>Then:</u>
The equation formed by plugging x in place of gift box and christmas tree will be:
(1) 2x + y + 3 = 16
➛ 2x + y = 13
(2) 3x + y + 1 = 14
➛ 3x + y = 13
Subtracting (2) from (1), And we get:
➛ 3x + y - 2x - y = 0
➛ x = 0
Then, y = 13
<u>We </u><u>need </u><u>to </u><u>find:</u>
• yx + x
= 13 × 0 + 0
= 0
<u>Hence</u><u>:</u><u>-</u>
- The cost of all the items will be 0. Congrats for Christmas Bingo!!!
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31.5 is the answer to your problem
Answer:
Step-by-step explanation:
If you are confused as to how the answer is 9 then all we have to do is solve for c
c + 11 = 20
So in order to solve this you have to subtract 11 from 20 to get c alone on one side so...
c = (20-11)
c = 9
2. Definition of supplementary angles
I’m not too good with proofs but hopefully at least one answer helped lol sorry