Answer:
B) (2,-6)
Step-by-step explanation:
x-3x=4, x=2, plug 2 in for x y=-3*2 then, y=-6
You figure out how long it would take a car traveling at 25 mph
to cover 360 ft. Any driver who does it in less time is speeding.
(25 mi/hr) · (5,280 ft/mile) · (1 hr / 3,600 sec)
= (25 · 5280 / 3600) ft/sec = (36 and 2/3) feet per second.
To cover 360 ft at 25 mph, it would take
360 ft / (36 and 2/3 ft/sec) = 9.82 seconds .
Anybody who covers the 360 feet in less than 9.82 seconds
is moving faster than 25 mph.
_________________________________
If you're interested, here's how to do it in the other direction:
Let's say a car covers the 360 feet in ' S ' seconds.
What's the speed of the car ?
(360 ft / S sec) · (1 mile / 5280 feet) · (3600 sec/hour)
= (360 · 3600) / (S · 5280) mile/hour
= 245.5 / S miles per hour .
The teacher timed one car crossing both strips in 7.0 seconds.
How fast was that car traveling ?
245.5 / 7.0 = 35.1 miles per hour
Another teacher timed another car that took 9.82 seconds to cross
both strips. How fast was this car traveling ?
245.5 / 9.82 = 25 miles per hour
Answer:
Step-by-step explanation:
Apply <u>PEMDAS</u> order of operations:
→ Parentheses
→ Exponents
→ Multiplication
→ Division
→ Addition
→ Subtraction
________________
<u>1) Parentheses:</u>
<u>2) Exponents:</u>
<u>3) Multiplication/Division:</u>
Convert to fraction:
Multiply 2 × 2, and 5 × 1:
Convert to fraction:
Apply fraction rule:
Multiply 4 × 1 and 5 × 3:
<u>4) Addition/ Subtraction:</u>
Finally, Convert fraction to mixed number:
<u>___________________________</u>
2.54x10^3
There the answer Bestie.
When finding the slope of real-world situations, it is often referred to as rate of change. change in y Rate of change = change in x change in height change in time The average rate of change or a rider between 0 and 5 seconds is —24 ft/s. magnitude relation. Another synonym is "velocity".
Hope this helps