The answer is A
Reasoning;
<span>a1 = first term;
an</span><span>= </span>a<span>n-1</span><span> + </span><span>d
</span>In a sequence you add the first term (a1) with the second term in a repeating linear equation. In this one you need to add 4 to each term so, the equation is;
a1 = 2
an = an -1 + 4
creating:
2 6 10 14 18 22 26...
Answer:
5/4
Step-by-step explanation:
Lets suppose a quantity A that has a value of x
A = x
25% of A is = x/4
now adding this 25% to get 25% increase in the original value
A' = x+ x/4
A' = 5x/4
A' = 5*A/4
This means that , in order to increase the value by 25% in a single step we must multiply the the original value by 5/4.
#1: 4(x + 3)
We just have to distribute the 4 throughout the rest of the problem. So, (4 times x) + (4 times 3) = 4x + 12
#2: -7(4 - y)
This is the same concept, but with a negative sign at the front. So, (-7 times 4) - (-7 times y) = -28 + 7y
