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elena-s [515]
4 years ago
15

What is the value of X?

Mathematics
2 answers:
Bingel [31]4 years ago
7 0
I believe the answer either 4 or 6
Im not sure so if its wrong, sorry

Anastaziya [24]4 years ago
7 0
(1) x + 2y = 4
(2)5x+y+15=3x-3y+23

I'm sorry if it's wrong I just started learning this
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A store uses the expression -2p+ 50 to model the number of backpacks it sells per day, where the price, p, can be anywhere
Ivan

Answer:

B: $12.00 per backpack gives the maximum revenue; the maximum revenue is $312.00.

Step-by-step explanation:

3 0
3 years ago
Branilest and 30 point please answer
Lynna [10]

Answer:

<em>Addition Property of Equality</em>

Step-by-step explanation:

<u>System of Equations</u>

When two equations are given and two variables are unknown in both equations, then we can solve the system in several ways.

One method consists in adding both equations term by term and eliminate one of the variables. That property is called the addition of equalities. Let's consider the equations given in the problem:

5x+4y=-2\\2x-4y=6

If we add both equations, we have

5x+4y+2x-4y=-2+6

Simplifying

7x=4

By adding both equations we managed to eliminate the variable y and could easily find the value of x

x=4/7

Answer: Addition Property of Equality

7 0
4 years ago
HELP ME PLEASE<br><br> Select the locations on the number line to plot the points 10/2 and −9/2
mr_godi [17]

Answer:

5 and -4.5

Step-by-step explanation:

10/2= 5 -9/2 = -4.5

I really hope this helps

5 0
3 years ago
Choose the correct simplification of (4x3 + 3x2 − 6x) − (10x3 + 3x2).
Ray Of Light [21]
Answer:
-6x (x + 1)(x - 1)

Explanation:
Before we begin, remember the following:
(-ve) * (-ve) = +ve
(-ve) * (+ve) = -ve
(+ve) * (+ve) = +ve
(+ve) * (-ve) = -ve
a² - b² = (a + b)(a - b)

Now, for the given:
(4x³ + 3x² - 6x) - (10x³ + 3x²)
First, we eill remove the brackets based on the rules mentioned above. This will give us:
4x³ + 3x² - 6x - 10x³ - 3x²
Now, we will combine like terms as follows:
(4-10)x³ + (3-3)x² - 6x
-6x³ - 6x
Taking -6x as a common factor:
-6x (x² - 1)
Factoring the bracket as difference between two squares will give us the final simplest form:
-6x (x + 1)(x - 1)

Hope this helps :)
7 0
4 years ago
Read 2 more answers
You originally draw a design for an art contest on a 4 in. x 5 in. card. The second phase of the contest requires the drawing to
Nutka1998 [239]
 as we know that <span>If the 4" side of the card was scaled up to 10.5
 then the scaling factor is 10.5/4 = 2.625. 
The 5 side would  be the length 5 x 2.625 = 13.125 which exceeds the maximum dimension of 11. 

Thus, it is the 5 side which is scaled up to 10.5 and the scaling factor is therefore 10.5/5 = 2.1. 
The scaled up length of the 4 side is thus 4 x 2.1 = 8.4.</span>
6 0
3 years ago
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