Answer:
Equation that apply to the table:
y= 10x +2 and y= 2x +10
X = -2
Combine terms to get:
-18x - 5 = 31
Add 5 to both sides
-18x = 36
Divide by -18
x = -2
Answer:
D
x is less than or equal to -3
Step-by-step explanation:
I hope I was fast enough ^^
7 is a prime number because it is only divisible by 1 and itself which is 7.
Hello,
Penny==>a*10 (a is an integer)
Kenny==>b*18 (b is an integer)
a*10=b*18==>a=9*b/5 ==>b=5+n*5
a=9*(5+5*n)/5=9*(1+n)=9+9n
If n=0 then a=9 and b=5 :Number od cards: 9*10=10, 5*18=90
if n=1 then a=19 and b=10: Number of cards: 19*10=190>100 to exclude.
So number of cards=90
