Answer:
Yes. In general, the set of rational numbers is closed under addition, subtraction, and multiplication; and the set of rational numbers without zero is closed under division.
Step-by-step explanation:
:)
Answer:
x =5
Step-by-step explanation:
We can use proportions to solve this problem. Put the side of one triangle over the same side of the other triangle.
x 4
------ = ----------
40 32
Using cross products
32x = 4*40
32x = 160
Divide each side by 32
32x/32 =160/32
x =5
Answer:
B. Each term is multiplied by 1.5.
Step-by-step explanation:
9) inequality: 4+x>13 Solution: x>9
10) x+19 ≥ 8.2 ; x≥-10.8
11) (Sorry I don’t know what the question means by “interpret”) 17+x ≤ 26; Solution: x ≤9
12) 785+x≤1500; Solution: x≤715
Answer:
15-5y
Step-by-step explanation:
To distribute, multiply everything inside the parentheses by the number outside the parentheses.
5(3-y)
Multiply 5 by 3-y
(5*3)+(5*-y)
15-5y
