Answer:
The speed of the faster cyclist is 15 miles per hour
Step-by-step explanation:
Let the speed of the slower cyclist be x miles per hour
The speed of the faster is 3 times this
Mathematically, we have this as 3 * x miles per hour = 3x miles per hour
Now;
distance = speed * time
In 4 hours, the distance covered by the slower will be;
x * 4 = 4x miles
The faster;
3x * 4 = 12x miles
Since they are riding opposite each other, they would have covered a total distance of 80 miles when they meet
Thus, we have that;
12x + 4x = 80
16x = 80
x = 80/16
x = 5
The speed of the faster is;
3x miles per hour
Substitute the value of x here
That will be;
3 * 5 = 15 miles per hour
We should get extra points for decoding the question. Is that computer generated?
It's easier for us if you type it in using math symbols, with lots of parentheses for clarity, or just post a photo.
If
what is the value of x?
That's straightforward:
Answer: -243
Answer:
Step-by-step explanation:
In this problem we have a exponential function of the form
where
f(x) a home's value
x the number of years
a is the initial value
b is the base
b=(1+r)
r is the rate of grown
we have
a=$120,000
r=5.5%=5.5/100=0.055
b=1+0.055=1.055
substitute
To solve for this, we need to set up fractional proportions.
We have x% out of 100%, x being what we're looking for and 100 being the total maximum percent.
We have 15 out of 20, being one of our fractions.
Our fractions are:
x/100 = 15/20.
To solve for this, we need to cross multiply the denominator of one fraction by the numerator of the other fraction.
Multiply x and 20, and then 100 and 15.
You should end up with:
20x = 1500.
Divide both sides by 20 to solve for x.
20x/20 = x.
1500/20 = 75.
x = 75.
Your final and absolute answer is :
15 is 75% of 20.
I hope this helps!
I think is C but I'm not 100% sure
