Answer:
x=2
Step-by-step explanation:
Answer: 63 mph
Step-by-step explanation:
Speed is determined by dividing the distance traveled by the time taken to travel it.
Speed = Distance of highway / Time spent on highway
= 157.5 / 2.5
= 63 miles per hour
Answer
B
If it increases 6% after 3 years it would be something like B
Answer:
Edna = 56.5
Elsa = 57.5
Step-by-step explanation:
Represent Edna age with x; Elsa age will be x + 1
So,
Make 2x the subject
Solve for x
Elsa age is calculated as thus;
18/27 = 2/3
divide both the numerator and the denominator by 9