Answer:
<em>-4 ≤ y ≤ 7</em>
Step-by-step explanation:
<u>Inequalities</u>
Solve the system of inequalities:
4y - 7 ≤ 3y [1]
3y ≤ 5y + 8 [2]
A.
Subtracting 3y to [1]:
y - 7 ≤ 0
Adding 7:
y ≤ 7
Subtracting 5y to [2]:
-2y ≤ 8
Dividing by -2 (and flipping the sign):
y ≥ -4
The solution of the system is all the values of y greater or equal to -4 and less or equal to 7.
B.
The solution can be expressed as:
-4 ≤ y ≤ 7
Answer:
Step-by-step explanation:
Given
---- Initial
--- rate
Required
The inequality that represents people more than 3000
The given parameters show a geometric sequence and will be calculated using:
Where t is the number of days
For the people to be more than 3000, the expression becomes:
Substitute values for a and r
Divide both sides by 15
Take log of both sides
Apply law of logarithm
Make t - 1 the subject
Add 1 to both sides
Round down
Answer:
5
Step-by-step explanation:
You subtract all those distances from 22 to calculate the remaining distance.
22-4= 17
17-5=12
12-0=12
12-6=5
So the answer is 5
(Yes I did these in my head)
Answer:
120
Step-by-step explanation:
I'm assuming your looking for the area (if not pls tell me and I will make corrections)
So to get the area of a 3D shape you multiply the length, width, and height
5×4×6=120