First term (a) = -15
common difference(d)= -9-(-15)
= -9+15=6
So,
12th term(a12)= a +(n-1)d
= -15+(12-1)×6
= -15 + 11×6
= -15+66
= 51
line up your decimals and then multiply like usual, next count how many places after the decimal your problem(s) was and place it to your answer
Answer:
D 3 3/4 and 7/10
Step-by-step explanation:
A) 2 3/8 and 3/4
4 goes into 20 evenly but 8 does not
NO
B) 1 5/6 and 2/5
5 goes into 20 evenly but 6 does not
NO
C) 4 1/3 and 1/4
4 goes into 20 evenly but 3 does not
NO
D) 3 3/4 and 7/10
4 goes into 20 evenly and 10 goes into 20 evenly
YES 3 3/4 = 3 15/20 and 7/10 = 14/20
5/8 I believe. You can divide both by 9
Answer: infinitely many solutions
Step-by-step explanation: 6y = -3x + 30 rewrites to 3x + 6y = 30
1. align equations x + 2y = 10
3x + 6y = 30
2. multiply first equation by -3 to get -3x - 6y = -30
3. align equations -3x - 6y = -30
3x + 6y = 30
4. add the equations and you they cancel out, which means infinitely many solutions
