Answer:
Speed of car B is 33 km/h and speed of car A is 
Step-by-step explanation:
Let speed of car B be 
km/h
Speed of car A is 12 km/h more than car B.
Therefore,
Speed of car A = 
km/h
Distance = Speed × Time
Distance travelled by car A in 4 hours = 
km = 
km
Distance travelled by car B in 4 hours = 
km
Also, cars A and B are 312km apart after 4 hours.
Speed of car B is 33 km/h and speed of car A is 
Answer:
25 degrees
Step-by-step explanation:
arc divided by 2 = angle
50/2=25
0.2(3) reoccurring.
Easiest way I can think of is to just put it in to a calculator and convert to a fraction, haha. Have fun counting up reoccurring numbers manually.
The answer is
Answer:
You do -17 + -10 inorder to change the operation used because both negatives does not mathematically look nice.
Step-by-step explanation:
To isolate the unknown, we need to move all the numbers on one side of the equal sign and all the unknow variables on one side.
Here we move 10 on the other side by taking away 10 both sides
10 + 3x = -17
-10 -10
then we are left with only 3x on one side and -27 on the other side because -17 - -10 = -27 , in this case it is acknowledge to change the operation from minus to add because the two minus are together, so we say -17 + -10 .
3x = -27
/3 /3
x = -9
