Answer:
y=-5
Step-by-step explanation:
There are 1.505535375e+24 atoms in 2.50 moles of iron.
The answer is 5 5/6 simplified to the max.
rewrite the equation with separated parts
-3 1/2 - 2 1/3
-3 - 2 = -5
-1/2 - 1/3? u need to find the LEAST common denominator
-3/6 - 2/6 = -5/6
how did I get 6?
Rewriting input as fractions if necessary:
1/2, 1/3
For the denominators (2, 3) the least common multiple (LCM) is 6.
Therefore, the least common denominator (LCD) is 6.
Now lastly combine them total and its -5 - 5/6 = -5 5/6.
Answer:
11 dimes and 16 quarters
Step-by-step explanation:
system of equations lol
The cost of a senior citizen ticket is $15 and the cost of a student ticket is $12.
How did I get this?
We know that 6 citizen tickets and 7 student stickers sold for $174 the first day. And 10 citizen tickets and 14 student tickets sold for $318 the second day.
1. create two equations out of this: C= citizen cost per ticket and S = student cost per ticket.
6C + 7S = $174
10C + 14S = $318
2. Use process of elimination. Multiply the first equation by 2 because we want two variables to cancel out.
-12C - 14S = -$348
10C + 14S = $318
Combine like terms.
-2C = $30
Divide by -2 on both sides. The left side cancels out.
C = $30/-2
C = -$15 (In this case the negative doesn't matter)
C = $15 (cost of senior citizen ticket)
Plug the value of C into any of the two equations so we can get the value of S.
6($15) + 7S = $174
Distribute the 6 into the parenthesis.
$90 + 7S = $174
Subtract both sides by $90 and the left side will cancel out.
7S = $84
Divide both sides by 7.
S = $12
Student ticket: $12
Senior citizen ticket: $15
