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Stells [14]
3 years ago
8

You are buying two kinds of notebooks for school. A three-ring notebook costs $6, and a spiral notebook costs $3. You must have

at least five notebooks. The cost of the notebooks can be no more than $24. Which system of inequalities, along with y>=0 and x=0, would you use to solve the real-world problem?
Mathematics
2 answers:
stellarik [79]3 years ago
7 0
X = 3 ring notebook
y = spiral notebook

6x + 3y < = 24 (thats less then or equal)
x + y = 5
0 < = x < = 5
0 < = y < = 4
oksano4ka [1.4K]3 years ago
7 0

The correct answer is:


y ≥ -x + 5

y ≤ -2x + 8

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Geometry the value of X
raketka [301]
Since the symbol tells us the angle is 90 degrees we know the 4x and 5x add up to make 90 degrees.
Lets use this to make and form an equation

5x + 4x = 90
9x =90    (collect the x values)
x = 10        (divide both sides 9 to find what x is)
8 0
3 years ago
It's raining outside, and after 1 hour of rain, the water level in Jake's pond is 2 meters. After 3 hours, the water level is 2.
alexira [117]

Answer: 0.4 meters per hour.

Step-by-step explanation:

The rate of change of distance with respect to time is known as speed.

Formula :\text{Rate of change}=\dfrac{\text{Change in position}}{\text{Change in time}}

Given : It's raining outside, and after 1 hour of rain, the water level in Jake's pond is 2 meters. After 3 hours, the water level is 2.8 meters.

i.e. Change in position= 2.8-2=0.8 meters

Change in time = 3-1=2 hours

i.e. \text{Rate of change}=\dfrac{0.8}{2}=0.4

Hence, the rate of change =0.4 meters per hour.

4 0
3 years ago
Read 2 more answers
What is the solution to 2x + 8 &gt; 10 ?
djyliett [7]
2x + 8 > 10
You first move + 8 to the other side, so you subtract 8
(When you see addition, you perform subtraction)
2x + 8 - 8  > 10 - 8
+ 8 and - 8 cancels out
2x > 2
Now, to isolate x, you should divide both sides by 2
(When you see multiplication, you perform division)
\frac{2x}{2} > \frac{2}{2}
2 and 2 cancels out and we are left with
x > 1
So your final answer will be x > 1
6 0
3 years ago
The reduced row-echelon forms of the augmented matrices of four systems are given below. How many solutions does each system hav
vagabundo [1.1K]

Answer:

A. Infinitely many solutions.

Step-by-step explanation:

The row and column numbers are equal in the echelon. This rows have 0001 numbers which indicates that there is free variable at the end. The reduced row echelon has equal number of rows and columns. There are infinitely many solution as the numbers in the rows are zero ending of the free variable 1. If there is no free variable then there will be no solution.

8 0
3 years ago
Help please!!!!!!!!!!!!!!!!!!!!!!!!11111
yaroslaw [1]
1/3

Hope this helps! :)

(I’m actually doing IXL too lol)
8 0
3 years ago
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