The distance between Car A and car B,When Car A crosses the start line is:
distance =speed car B* time
distance=(15 m/s)(3 s)=45 m

Distance traveled by car A =x, (when the car B is at the same distance from the start line)
time of car A=t

x=10 m/st ⇒ x=10t (1)

Distance traveled by car B=x
time of car B=t-3

x=15(t-3) (2)

With the equations (1) and (2) we make a system of equations:

x=10t
x=15(t-3)

We solve this system of equations:

10t=15(t-3)
10t=15t-45
-5t=-45
t=-45 / -5
t=9

t-3=9-3=6

x=10 t=10 (9)=90

Answer: The time would be 9 seconds for Car A and 6 seconds for car B and the distance would be 90 meters.

8 0

3 years ago

Help me pleaseeeeeeeeeeeeeeeee

hjlf

Answer:

The Order of operations is PEMDAS: Parentheces, Exponents, Multiplcation, Division, Addition, Subtraction

Step-by-step explanation:

$9+3*2-(6+3^2) \\(6+3^2= 12\\3*2= 6\\9+6=15\\\\15-12= 3$

Option A is not correct because it equals 9.

Option B is not correct because it equals -66

Option C is CORRECT because it equals 3 that is your ANSWER

Option D is not correct because it equals 0

PLZ PLZ PLZZZZ MARK BRAINLIEST I WORKED VERY HARD ON THIS

3 0

3 years ago

Geometry help greatly needed. please help if possible.

elixir [45]

Answer:

$\huge\boxed{\sf x = 90\°}$

Step-by-step explanation:

If AB is diameter, the angle opposite to it, when a triangle is inscribed in that semi circle, will be 90 degrees.

<u>Given that:</u>

AB is the diameter.

According to what is given, we come to know that <ACB = x = 90°.

$\rule[225]{225}{2}$

Hope this helped!

3 0

3 years ago