An
chọn A
Step-by-step explanation:
3x-5>= 4x-3
<=>x <= -2( -2;-3;-5)
Answer:
9) 3rd side = 2x+2y
10) 5a^2 + 6a - 3
Step-by-step explanation:
9) 10x+5y - ( 3x+ 4y) = 7x + y
7x + y - ( 5x - y ) = 2x + 2y
10)
Answer:
<h3>It's irrational number </h3>
Step-by-step explanation:
1.) Begin by converting 2 yards into feet.
There are 6 feet in two yards, and 3 feet in one.
2.) Now that we have converted that, we can compare each length better.
3.) Take 6 feet and divide it by 10.80. You will get 0.55, or 55 cents.
4.) Now, take 12 feet and divide it by 24.60. You will get 0.48, or 48 cents.
5.) When you divide these numbers, you are seeing how many cents per foot of twine.
6.) Now, compare .55 and .48, or subtract the two. That will be 7 cents, or 0.07.
The difference is 7 cents, and 12 feet of twine for $24.60 is the better deal, as it costs less for more.
