Answer:
d = 7
Step-by-step explanation:
The nth term of an arithmetic sequence is
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Give a₁₀ = 67 and a₁ = 4 , then
a₁ + 9d = 67
4 + 9d = 67 ( subtract 4 from both sides )
9d = 63 ( divide both sides by 9 )
d = 7
11 = -3k - 22 - 8k
11 = -11k - 22 <em>added like terms (-3k and -8k)</em>
<u>+22</u> <u> +22 </u>
33 = -11k

-3 = k
Answer: k = -3
Answer:
Yes, he is correct, just divide any number by 4 and you'll get 25% of that number.
Step-by-step explanation:
Answer:
Step 1:
Addition is commutative
A + B = B + A
So the terms can be rearranged
Step 4:
2x(2x - 3) + 5(2x - 3)
Since (2x - 3) is common to both terms,
You can take it common
(2x - 3)(2x + 5)
This can be proved verified using distribution property
(2x - 3)(2x + 5) is the same as
(2x + 5)(2x - 3) because multiplication is commutative