Answer:
n=8
Step-by-step explanation:
57=8n-7
add 7 on both sides
64=8n
divide 8
n=8
Use the formula for the area of a rectangle to find the width.
Answer:
3.25 pounds
Step-by-step explanation:
First subtract the pounds of soil 2.2*3=6.6 so that takes away 6.6
22.85-6.6 =16.25
now divide 16.25 by 5
you get 3.25 so each bag was 3.25 pounds
and you multiply/add just to check
Step-by-step explanation:
6(3-2x)=54
18-12x=54
-12x=54-18
-12x=36
x=36 /-12
x=-3
Answer:
[1, ∞)
Step-by-step explanation:
To solve a compound inequality, first separate it into two inequalities and solve them separately:
Solution of Inequality 1:
x + 7 ≥ 4
⇒ x ≥ 4 - 7
⇒ x ≥ -3
Solution of Inequality 2:
11x - 8 ≥ 3
⇒ 11x ≥ 3 + 8
⇒ 11x ≥ 11
⇒ x ≥ 1
As both graphs overlap for x ≥ 1, this is the solution.
Therefore, in interval notation: [1, ∞)