1. 6, 12, 18
2. 8,16,24
3. 12, 24, 36
4. 15, 30, 45, 60
4. 30, 60, 90
Elimination:
7x - 3y = 20
5x + 3y = 16
(add)
12x = 36
÷ 12
x = 3
(5 × 3) + 3y = 16
15 + 3y = 16
- 15
3y = 1
÷ 3
y = 1/3
Substitution:
5x + 3y = 16
- 3y
5x = 16 - 3y
÷ 5
x = 3.2 - 0.6y
5(3.2 - 0.6y) + 3y = 16
16 - 3y + 3y = 16
16 = 16
- 16
6y = 0
÷ 6
y = 0
Sorry the substitution messed up for some reason, I'll fix it after I've answered the other question
Answer:
6x^8y^5
Step-by-step explanation:
(3)(2)= 6
add the exponents for the variables
Answer:
235 is not Prime. It’s Composite.
Step-by-step explanation:
Factors of 235:
1, 5, 47, 235.
1 x 235 = 235,
47 x 5 = 235.
Prime Numbers have the number 1 and the number it's self.
This number has 4 factors, which means it’s composite,
Composite Numbers have 3 or more factors.