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ZanzabumX [31]
1 year ago
13

Solve each system by substitution method. X=2y+11 7x+2y=13

Mathematics
2 answers:
Andreyy891 year ago
7 0

Step-by-step explanation:

you need to substitute the x in (7x +2y=13) with (x=2y+11) to solve it

Savatey [412]1 year ago
5 0

y =  - 4

Step by step explanation:

Equation 1:

x = 2y + 11

Equation 2:

7x + 2y = 13

Put the value of X from equation 1 into equation 2.

7(2y + 11) + 2y = 13

Solve the brackets.

14y + 77 + 2y = 13

Simplify.

16y + 77 = 13

Send 77 to the other side.

16y= 13 - 77

16y =  - 64

Send 16 to the other side.

y =    - \frac{64}{16}

Answer:

y =  - 4

Hope this helped!

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Pls help ill give brainliest
Ymorist [56]

Answer:

\boxed {\boxed {\sf (5g^2+2)(2g-5)}}

Step-by-step explanation:

We are given the expression:

10g^3-25g^2+4g-10

There are no common factors between the four numbers, however the first two have a common factor and the last two do too. Therefore, we can factor by grouping.

Group the first two terms and the last two.

(10g^3-25g^2)+(4g-10)

Find the greatest common factor (GCF) of the first group. It is 5g². Factor it out of the first group. You can do this by dividing both terms by the GCF.

  • 10g³/5g²= 2g
  • -25g²/5g² = -5

5g^2 (2g-5) + (4g-10)

Repeat with the second group. The GCF is 2.

  • 4g/2 = 2g
  • -10/2= -5

5g^2 (2g-5) + 2(2g-5)

There is another GCF: 2g-5. We can factor this out of both terms.

  • 5g²(2g-5)/2g-5= 5g²
  • 2(2g-5)/ 2g-5=2

(5g^2+2)(2g-5)

This cannot be factored further, so it is the answer.

4 0
3 years ago
Benjamin wants to find the surface area of this prism. Which unit of measurement should Benjamin use? A. m B. m² C. m³
Llana [10]
Because surface area is a two-dimensional measurement, Benjamin should use m².
7 0
3 years ago
Read 2 more answers
Solve the equation 4^2x = 9
Bas_tet [7]

Answer:

x=9/16

Step-by-step explanation:

Divide each term by  4 ^2  and simplify.

8 0
4 years ago
If the numerator of a fraction is a prime number, can the fraction be simplified? why or why not?
xz_007 [3.2K]
Yes, a fraction with a numerator that is prime can still be simplified.
The definition of a prime number is that it's only two factors are 1 and itself. 
If the numerator is prime, it can still be reduced or simplified because it can be divided by itself to get 1. 

For example, the number 7 is a prime number. It's only two factors are 7 and 1. 
The fraction 7/14 is a fraction where numerator is prime. 

<u> 7</u>  = <u>1</u> because <u>7  ÷ 7 = 1</u>
14    2              14 ÷ 7 = 2
4 0
3 years ago
Solve this inequality j/4-8&lt;4
liubo4ka [24]
First, you need to have j on it own. Since j is over 4-8, you times both sides of the inequality so the /4-8 is canceled. 

Your new inequality equation is j<4(4-8). Solve the bracket and then times the answer by 4.

~ j<4(-4)

~ j<-16
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5 0
3 years ago
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