Answer:
70%
Step-by-step explanation:
Percentage is out of 100
35/50 change denominator
multiply both numerator and denominator by 2
70/100= 70%
Answer: It would be 7. (0,7)
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.
Answer:
y < 1.1
Step-by-step explanation:
<u>Step 1: Subtract 2.1 from both sides
</u>
-4.2y + 2.1 - 2.1 > -2.52 - 2.1
<em>-4.2y > -4.62</em>
<em />
<u>Step 2: Divide both sides by -4.2</u>
-4.2y / -4.2 > -4.62 / -4.2
<u><em>Since you divided by a negative, that flips the sign.</em></u>
<em>y < 1.1
</em>
Answer: y < 1.1
