Answer:
y=11
Step-by-step explanation:
To find the value of y when X=20, I would substitute “20” for “X” in the original equation (X = 9 + y) and solve for y. So, 20 = 9 + y. then, y = 11.
Answer:

Step-by-step explanation:
We know that
- A fraction consists of two integers—one on the top, and one on the bottom.
- The top one is numerator, the bottom one is denominator, and
- These two numbers are separated by a line.
Let us consider two different fractions with different denominators
Lets subtract the two fractions









so





Therefore,

Answer:
5 mph.
Step-by-step explanation:
Let the runner travel at x miles an hour , then the cyclist travels at 5/ 3 * x
= 5/3 x miles an hour.
So we have the equation
5/3 x - x = 2 ( since the cyclist was travelling at 2 mph faster).,
2/3 x = 2
x = 3/2 * 2 = 3 mph.
So the cyclists speed was 3 * 5/3
= 5 mph.
You have to subtract 4.35 from 15.60 to see for all the children
3x+4.35 = 15.60
Step 1.
Calculate measure of angle α:

Step 2.
Calculate what fraction of the angle 360° is the angle α:

Step 3.
Calculate the circumference of the Earth (circle):

Step 4.
The length of arc is equal 1/40 of the circumference:


<h3>Answer: A) 628 miles</h3>