You are right to circle both 10 or 12. Neither can be solved without knowing something about the x values in 10 and the x value of the smaller base in 12.
A + 4(a - 5) = 5
a + 4a - 20 = 5
5a = 5 + 20
5a = 25
a = 25/5
a = 5 <====
Answer:
Number of coins.
Step-by-step explanation:
You mean quantity?
The amount of or number of items (in this case coins).
Answer:
1. What happens when air is heated or cooled? ... So air, like most other substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.
Step-by-step explanation:
Hope this helps
If a number is divisible by 5, 6, and 7,
<span>it's divisible by 5 x 6 x 7 = 210, the least </span>
<span>common multiple of the numbers. So her number </span>
<span>is a multiple of 210. The only 4-digit multiple </span>
<span>is 210 that starts 210 _ is 2100, so that's her number.</span>
