The correct answer is D.
Sally is 3 years younger than Ralph therefore S=R-3 which means Sally is Ralph’s age minus 3.
Y =4
if you replaced y with 4 the equation would be true...
it's easy math
- hope you have a nice day...
Answer:
20%
Step-by-step explanation:
1/5 of 1 hour = 20 minutes
so 1/5 = 20%
25% + 20% = 45%
0.35 = 35%
45% + 35% = 80%
100% - 80% = 20%
Answer = 20%
Hope this helps!
Step-by-step explanation:
Not entirely sure, but I believe something like this:
∠1 + ∠2 = 180° since they are a linear pair;
Since ∠1 = ∠2, we can say:
∠1 + ∠1 = 180°
2(∠1) = 180°
∠1 = 90°
And since:
∠1 = ∠2
∠2 = 90°
So the angle between t and s is 90°;
An angle of 90° means t and s are perpendicular (⊥)
Answer:
The skid distance to be used is 54 feet.
Step-by-step explanation:
Given:
Four skid marks on the highway.
in feet.
We have to find the skid distance.
The skid distance that will be used to further calculate the skid speed is actually the mean skid distance.
Mean skid distance (m) :
⇒ 
⇒ 
⇒ 
⇒ 
feet.
So the skid distance to be used is 54 feet.
