Answer:
x = -4 and y = 12
Step-by-step explanation:
Since you have y = -x + 8 you can substitute this into the first equation where y was so you have 3x + 4(-x + 8) = 36.
That way, there is only one variable and it is easier to solve.
3x + 4(-x + 8) = 36
3x -4x + 32 = 36
-x +32 = 36
-x = 4
x = -4
Plugging this into the equation y = -x +8,
y = -(-4) + 8
y = 4 + 8
y = 12
Answer:
20,000
Step-by-step explanation:
7x+20 = 5x+100
2x = 80
x=40
5(40)+100=20,000
There is 8 fluid oz in a cup. To figure out how many fluid oz are in 5 cups we multiply 5 by 8.
. Therefore, there are 40 fluid oz in 5 cups.
Therefore, 5 cups is the same as 40 fluid oz, not greather than it.
Answer:
Step-by-step explanation:
Looking at the graph, we can say that 40% of the people rode the bus. We also know that 80 people took the survey.
<u>Solution:</u>
- 40/100 x 80
- => 2/5 x 80
- => 2 x 16
- => 32 people
Hence, 32 people rode the bus.
. The amount of TIME spent driving (which depends on the SPEED of the car) is 5 hours. means time(speed) = 5. TIME and SPEED are your key words and 5 is the key number.
