Answer:
A.) Yes
Step-by-step explanation:
Plug in (3,2) into both equations ....
2(3) - 3(2) = 0
2(3) + 2 = 8
Then solve ....
2(3) - 3(2) = 0
6 - 6 = 0
0 = 0
2(3) + 2 = 8
6 + 2 = 8
8 = 8
Since both equation are true the solution (3,2) is true
Answer:
225 feet farther.
Step-by-step explanation:
This question can be solved using rules of three.
Up the river in 5 minutes:
You kayak up a river at a rate of 192 feet every 2 minutes. That is, a rate of 192/2 = 96 feet per minute.
So in 5 minutes, you will kayak 96*5 = 480 feet up the river.
Down the river in 5 minutes:
You kayak down a river at a rate of 423 feet every 3 minutes. That is, a rate of 423/3 = 141 feet per minute.
So, in 5 minutes, you will kayak 141*5 = 705 feet down the river.
How much farther do you kayak in 5 minutes on the way down the river than in 5 minutes on the way up the river.
706 - 480 = 225 feet farther.
number is 21
let the number be n then dividing by 3 gives and adding - 3 gives
- 3 = 4 ( add 3 to both sides )
= 7 ( multiply both sides by 3 )
n = 3 × 7 = 21
1 =25 times 1+8=33
2=25 times 2+8=58
3=25 times 3+8=83
4=25 times 4+8=108
5=25 times 5+8=133
B
10= 25times 10+8=258
C
233=25 times x+8
233=25x+8
233-8=25x
225=25x
225/25=25x/25
9=x
there are 9 classes.