**Note / Protip**
Always substitute "a number" for your variable when reading worded equations!
With that being said...
<span>D. x - 6 = 15
Is your answer, since you are going to want to reverse it because of how the problem's worded, not c. because; c.'s worded equation would be
"A number less than six."
</span>
Answer:
Step-by-step explanation:
+2+3+4+5+6
If x ≡ 7 (mod 20), then
x ≡ 7 ≡ 27 ≡ 47 ≡ 67 ≡ 87 ≡ … (mod 20)
or equivalently, x = 7 + 20k for some integer k.
Taken mod 4, we have
x ≡ 7 + 20k ≡ 3 (mod 4)
and mod 5,
x ≡ 7 + 20k ≡ 2 (mod 5)
so that a = 3 and b = 2.
Answer:
tuxtla mountains on the test
Step-by-step explanation:
