Answer:
r=3
Step-by-step explanation:
The diameter is double the radius. So, divide by 2.
Answer:

Step-by-step explanation:

Combine all like terms.


Multiply both sides by -1.

Answer:
3520 yards
Step-by-step explanation:
1 mile in 1 hour.
In 2 hours he will cover 2×1= 2 miles
1 mile = 1760 yards
2 miles = 3520 yards
Answer:
#1: x/4 - 3/4
#2: x/14 + 9/2
Step-by-step explanation:
because i said so, you should mark me brainliest
Answer:
(3,0.5)
Step-by-step explanation:
The given system has equations:

Let us multiply the second equation by 4 and the first equation by 10.

We add both new equations to get:

Put x=3 into the first equation and solve for y.

The point of intersection is the solution to the system of equation which is (3,0.5)