Answer: Wouldn't it be $3000 dollar profit? Because 6000-3000 is 3000
Step-by-step explanation:
Answer:
−
7
36
≈negative 0.194−0.194
Step-by-step explanation:
Step 1 of 2: Subtract.
Subtract
(negative 3 over 4 −
3
4
) − (negative 5 over 9 −
5
9
) = negative 7 over 36−
7
36
Step 1 of 2: Subtract, sub-step a: Subtract a negative.
Subtract a negative
negative 3 over 4−
3
4
− (negative 5 over 9 −
5
9
) = negative 3 over 4−
3
4
+ 5 over 9
5
9
Subtracting a negative is the same as adding a positive.
Step 1 of 2: Subtract, sub-step b: Find common denominator.
Find common denominator
negative 3 over 4−
3
4
+ 5 over 9
5
9
= −( 3 × 9 ) over ( 4 × 9 )
3 × 9
4 × 9
+ ( 5 × 4 ) over ( 9 × 4 )
5 × 4
9 × 4
= negative 27 over 36−
27
36
+ 20 over 36
20
36
36 is the least common multiple of denominators 4 and 9. Use it to convert to equivalent fractions with this common denominator.
Step 1 of 2: Subtract, sub-step c: Add.
Add
negative 27 over 36−
27
36
+ 20 over 36
20
36
= ( negative 27−27 + 20 ) over 36
negative 27−27 + 20
36
= negative 7 over 36−
7
36
Rory is playing a video game where each game lasts 13⁄4 hours. He wants to play for 9 hours today and this evening.
13/4 hours taken to complete = 1 video game
9 hours taken to complete how many video games
hours = 1 video game
9 hours = 
We cannot simplify the fraction, we can write it as mixed fraction
He can play 
games in 9 hours
Answer:
It costs $25 for a parent and $6 for a child
Step-by-step explanation:
Let x be the cost it takes for an adult to enter, and y be the cost it takes for a child to enter then...
x+y=31
150x+225y=5100
We can write the first equation in terms of x by subtracting y from both sides...
x=31-y
Now, we can solve the system of equations by substitution (substitute 31-y for x)...
150(31-y)+225y=5100
Distribute the 150 to the terms inside of the parentheses
150(31)-150(y)+225y=5100
4650-150y+225y=5100
Combine like terms
4650+75y=5100
Subtract 4650 from both sides
75y=450
Divide both sides by 75
y=6
Plug 6 back in for y to solve for x:
x=31-y=31-6=25
It costs $25 for a parent and $6 for a child
