Answer:
5y-2xy
6q-6
Step-by-step explanation:
For the first expression, we can multiply 5 by y to get 5y. Thats all we can simplify it though, because xy is not equal to x or y.
For the second equation, we can easily add the variables to simplify. 6q-6
Hope this helps!
First of all we have to find the slope
3x - 4y = 12
-4y = 12 - 3x
y = -3 + ³/₄ x
y = ³/₄x - 3
so the slope is ³/₄
now the equation is :
y-y₁ = m (x-x₁)
y-8 = ³/₄ (x-8)
y-8 = ³/₄ x - 6
y = ³/₄ x -6 + 8
y = ³/₄x + 2
Answer: average speed of the train = 4,483.0 km/h
Step-by-step explanation:
Speed = Distance / Time
Distance = 66 km
Time = 15.47 cancelling 15, we have 60 sec added to 47 sec
<u> - 14.54</u>
= 14. 107 60 + 47
<u> - 14. 54</u>
<u> 53secs</u>
53secs to hours becomes =
60 secs = 1 min
60 min= i hour
therefore 53seconds =53/3600=0.0147222hours
Speed= 66/ 0.0147222= 4,483.025
Rounding to 1 dp becomes= 4,483.0 km/h
Answer:
250 turkey sandwiches were delivered.
There were 230 roast beef delivered.
115 PB&J were delivered.
Step-by-step explanation:
This question is solved using a system of equations.
I am going to say that:
x is the number of turkey sandwiches.
y is the number of roast beef.
z is the number of PB&J.
Donnie delivered 595 box lunches
This means that 
There were 20 more turkey sandwiches then roast beef.
This means that 
There were twice as many roast beef has PB&J.
This means that 
.
So in the second equation, we have that 
Replacing this in the first equation:
115 PB&J were delivered.
250 turkey sandwiches were delivered.
So
There were 230 roast beef delivered.
The x4 would have to be in the parentheses while the -3 would have to be on the outside because you are subracting 3 from 48
4 cases of 12 bottled waters is 48 total amount of bottled waters since Veronica drank 3 she has 45 bottled waters left
