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juin [17]
3 years ago
9

Solve each system of equations using substitution. a=5b+8 a=-10b-7​

Mathematics
1 answer:
lianna [129]3 years ago
7 0

Answer:

a = 3, b = -1

Step-by-step explanation:

a = 5b + 8

a = -10b - 7

5b + 8 = -10b - 7

Add 10b from both sides;

15b + 8 = -7

Subtract 8 from both sides;

15b = -15

Divide both sides by 15;

b = -1

Lets substitute b;

a = 5b + 8

a = 5(-1) + 8

a = -5 + 8

a = 3

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Which ordered pair maximizes the objective function p = 3x 8y? (0, 0) (2, 7) (5, 6) (8, 1)
Degger [83]

The ordered pair maximizes the objective function p = 3x + 8y will be (5, 6) .Option C is correct.

<h3>What is the objective function?</h3>

The objective function is simply an equation that represents the goal production capability that relates to maximizing profits in relation to manufacturing.

On putting the values we will get the values one by one. We get;

1. (0, 0)

3 (0)+8(0) = 0

2. (2,7)

3(2)+8(7)=62

3. (5,6)

3(5)+8(6)=63

4. (8,1)

3(8)+8(1)=42

The maximum value obtained from the 63. Obtained from option C. The ordered pair maximizes the objective function p = 3x + 8y will be (5, 6)

Hence option C is correct.

To learn more about the objective function refer to the link;

brainly.com/question/15830007

4 0
2 years ago
PLEASEEEEE HELPPPPP!!!!
Dmitry_Shevchenko [17]

Step One

Find AM

Formula

AM = MN - AN

Givens

MN = 67.2

AN = 32

Solution

AM - 67,2 - 32

AM = 35.2

Step Two

Set up a solution

67.2/35.2 = 81.9/x            Cross Muliply

67.2 * x   =    81.9 * 35.2   Combine the right

67.2 * x = 2882.88            Divide by 67.2

x = 2882.88/67.2

x = 42.9                             Answer

3 0
2 years ago
Plz plz plz plz plz plz plz plz plz plz
Karo-lina-s [1.5K]
12 girls for every 5 boys
boys is second so it shouldb be indenomenaotr (bottom)

girls/boys

12girls/5boys=2.4girls/boy

answer is B

6 0
3 years ago
Read 2 more answers
ILL GIVE BRAINLIEST<br> 1 x/3 - 3/4= 5/12<br> solve for x
mel-nik [20]
X/3 - 3/4 = 5/2
x/3 = 3.25
x= 9.75 Or 9 3/4
4 0
1 year ago
PLZ, HELP WILL GIVE 20 MORE POINTS FOR FREE!!!!!!
GrogVix [38]

Answer:

16x+12

Step-by-step explanation:

4 sides

2*(5x-2 )

10x-4

2(3x+8)

6x+16

10x-4+6x+16=16x+12

7 0
3 years ago
Read 2 more answers
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