<span>y=10x-9 , y=x+18
10x-9=x+18
9x-9=18
9x=27
x=3
y=10x-9
y=10 (3)-9
y=30-9
y=21
B. (3,21)</span><span>Source(s):
My Brain </span>
Answer:
The expression 40X represent the number of pages she read during X nights.
Step-by-step explanation:
Given : Tatiana read 40 pages of her book every single night
Let Tatiana read for X number of nights.
We have to write an expression that represent the number of pages she read during X nights.
The number of pages she read during X nights = number of pages Tatiana read every night × number of nights she spend
The number of pages she read during X nights = 40X
Thus, The expression 40X represent the number of pages she read during X nights.
Answer:
Upward
Step-by-step explanation:
The first term is positive meaning it will open upward
1) 2x+14=x+18
2x=x+4
x=4
2) 9y-2=3y+10
9y=3y+12
6y=12
y=2
3) 2*(2[4]+14) + (9[2]-2)
4) 32/2=16
5) 11*2=22