Hi there,
Take y from first equation and use it / substitute it into the second equation:
-2x + 8 = x - 1, so 3x = 9, therefore x = 3.
Then y = x - 1 = 3 - 1 => y = 2.
Solution is (3,2).
A quick check: 2 = -2*3 + 8, true, and 3 = 2 - 1, also true.
Green eyes.
Answer:
3. d= 20mm
4. r= 8 in
5. d= 14 mi
6. r= 11 yd
Step-by-step explanation:
Radius is half of diameter.
Example:
What is the diameter of a circle with a radius of 4?
If r = 4, d = 8
Do radius times 2.
Example 2:
What is the radius of a circle with a diameter of 10?
D = 10, so r = 5
Do diameter divided by 2.
Answer:
16 dimes
Step-by-step explanation:
He already has 7, and got 9 more, so we can add 7 and 9
7+9 =16
So, Dan has 16 dimes now
Hope this helps! :)
Answer: 5 minutes
Step-by-step explanation:
