equation- 9 × 5 = 45
mr. stevens worked for 45 hours last week
Answer:
zero
Step-by-step explanation:
2x-2x+1=-1
1 doesn't equal -1
As you can see, this is easily graphed on desmos.com. You can also graph it using your graphing calculator.
The solution is (x, y) = (-2/5, 1/5)
Answer:
Speed of boat in still water is 14 km/hr and speed of current is 8 km/hr
Step-by-step explanation:
Average speed of down stream = 22 km/h
Average speed of up stream = 6 km/hr
Consider the speed of boat in still water be x km/hr and speed of current be y km/hr
As such speed of down stream would be x + y km/hr and speed of down stream would be x - y km/hr. i.e
x+y = 22
x-y = 6
by solving these two equation, we get
2x=28
x=14 km/hr
y=16-13
y=8 km/hr
Hence, the speed of boat in still water is 14 km/hr and speed of current is 8 km/hr
Answer: Option B
16.8 minutes
Step-by-step explanation:
Machine A produces 75 fishing lures per minute.
Machine B produces 50 fishing lures per minute.
Let's call t time in minutes.
So we want to know how long it will take to produce 2100 fishing lures
We propose the following equation
Now we solve for t
The answer is Option B