Answer:
6.5
Step-by-step explanation:
I'm not sure if its right but:
(2 × x) - 8 = 5
2x = 13
x = 6.5
<span>If f(1)=1 then f(f(1))=1 but f(f(1))=3, so f(1) isn't equal to 1If f(1)>2 then f(2)>3, so f(f(1))>3, but f(f(1))=3, so f(1) isn't greater than 2Thus f(1)=2, and f(2)=3f(3)=f(f(2))=6, and f(6)=f(f(3))=9, so 9 > f(5) > f(4) > 6, so f(5)=8 and f(4)=7.</span>
Answer:
a ≤ 7
Step-by-step explanation:
An inequality is solved just like how you would for an equation with an equal sign, except that the direction of the sign changes when the inequality is divided by -1 (or any negative number).
5a +13 ≤ 48
Subtract 13 on both sides:
5a 48 -13
5a ≤ 35
Divide both sides by 5:
a ≤ 35 ÷5
a ≤ 7