Answer: B - 8
Step-by-step explanation:
If we plug in 8 into <em>p, </em>we have the following equation:
30 = 5(8) - 10
There are two ways we can simplify this:
Option 1:
Add ten to both sides to neutralize the -10.
We will now have:
40 = 5(8)
Then you can multiply.
40 = 40. The equation is true.
Option 2:
Multiply 5 by 8.
30 = 40 - 10
Then subtract.
30 = 30. The equation is true.
Answer:
ok I think the answer is the second one
Answer:
x = -2
x = -9
Step-by-step explanation:
The linear system is:
8x - 4y = 20 ⇒ (1)
5x - 8y = 62 ⇒ (2)
To solve the system multiply equation (1) by -2 to make the coefficients of y equal in values and different in signs, then add the resulting equation with equation (2)
∵ -2(8x) + -2(-4y) = -2(20)
∴ -16x + 8y = -40 ⇒ (3)
- Add equation (2) and (3)
∴ -11x = 22
- Divide both sides by -11
∴ x = -2
Substitute the value of x in equation (1) or (2)
∵ 8(-2) - 4y = 20
∴ -16 - 4y = 20
- Add 16 to both sides
∴ - 4y = 36
- Divide both sides by -4
∴ y = -9
Answer:
D.
Step-by-step explanation:
We are asked to find the GCF of .
Since we know that GCF of two numbers is the greatest number that is a factor of both of them.
First of all we will GCF of 44 and 121.
Factors of 44 are: 1, 2, 4, 11, 22, 44.
Factors of 121 are: 1, 11, 11, 121.
We can see that greatest common factor of 44 and 121 is 11.
Now let us find GCF of .
Factors of are:
Factors of are:
We can see that greatest common factor of is .
Now let us find GCF of .
Factors of are:
Factors of are:
We can see that greatest common factor of is .
Upon combining our all GCFs we will get,
Therefore, GCF of is and option D is the correct choice.
Answer:
<h2>-22 and -20</h2>
Step-by-step explanation: