Answer:
170
Step-by-step explanation:
Given
Tickets = $2 per single and $3 per couple
Total tickets = 365
Total receipts = $925
Required
Number of singles tickets sold.
Let S and C represent singles and couples respectively.
If the total number of tickets sold is 365, then
S + C = 365 --- (1)
Also, if the singles are charged $2 and couples, $3, then
2S + 3C = 925 ----- (2)
Make C the subject of formula in (1)
C = 365 - S
Substitute 365 - S for C in (2)
2S + 3(365 - S) = 925
Open bracket
2S + 1095 - 3S = 925
Collect like terms
2S - 3S = 925 - 1095
-S = -170
Multiply both sides by -1
-1 * -S = -1 * -170
S = 170
Recall that S represents number of single present at the even.
Hence, the number of singles are 170
I guarantee that B and C are the correct answers because in D the 4 (sine it is common)could be placed in front of the brackets and after simplifying in A the answer doesn’t work
28. You do 2x + (4x + 12) = 180. That gets you 6x + 12 = 180. Minus the 12 from both sides. 6x = 168. Divide both sides by 6 then you get 28.
Answer:
Step-by-step explanation:
A system of linear equations can help solve questions like this, that don't give "any" clue as to how many people are on either a van or a bus. Here you just need to interpret the question; at the bottom, it says that <em>x</em> represents the number of students on vans and <em>y</em> represents the number of students on a bus. In other words, for each school, the total number of students going on the field trip are the number of students on vans and the number of students on buses. Hope this helps :D
The three geometric means between 3 and 512 are…
8, 32, 128
OR
-8, 32, -128