<u>Step 1: Assign variable for the unknown that you need to find. </u>
Let ' t ' be the number of hours it took for the pedestrians to meet.
<u>Step 2: List the give details</u>
Speed of first pedestrian = 4 km/hr.
Speed of second pedestrian = 6 km/hr.
Distance between two pedestrians = 27 km.
<u>Step 3: Set up an equation</u>
The relationship between speed, distance and time is given below:
The first one walked 4 km per hour, distance traveled by first pedestrian is given below:
Two pedestrians simultaneously left two villages 27 km apart and walked toward each other.
Conclusion:
The pedestrian meet after 2.7 hours.
The general approach to this is to write the (x, y) coordinates of the trajectory's peak in terms of the sine and cosine of the launch angle α. Then use a trig identity (sin(2α)² + cos(2α)² = 1) to eliminate the dependence on α.
You should get
t = v₀sin(α)/g
x = v₀²sin(2α)/(2g)
y = v₀²(1-cos(2α))/(4g)
Solve each of the latter two equations for the trig function, then substitute those expressions into the trig identity above. Divide by the coefficient of x² and rearrange to get the expression shown.
Answer:
False ,false,true, true and true
Step-by-step explanation:
Answer:
The two rates are equivalent.
Step-by-step explanation:
Here we'll find the respective unit rates and then compare those rates:
$168
----------- = $4/car
42 cars
$152
----------- = $4/car
38 cars
These two rates are precisely the same. Thus, we conclude that they are equivalent.
Answer:
$17.70
Step-by-step explanation:
Hi,
What you want to do is to find 30% of $59
First, you convert 30% into decimal form by dividing it by 100
30%=0.3
Next, you want to find 30% of 59, so what you do is you take the new decimal form and multiply it by 59
0.3×59=17.7
Ted is saving $17.70
