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adoni [48]
3 years ago
11

Solve this system of liner equations.separate the -x and y - values with a comma. 2x=96-14y 9x=40-14y

Mathematics
1 answer:
Vaselesa [24]3 years ago
3 0
<span>A) 2x=96-14y
B) 9x=40-14y
Rearranging algebraically
</span>
A) 2x <span>+14y = 96
B) 9x </span><span>+14y = 40</span>

Multiplying equation A by -1
A) -2x <span>-14y = -96 Then adding it to equation B
B) 9x </span><span>+14y = 40
7x = -56
x = -8

</span><span>2*-8 = 96 -14y
-16 -96 = -14y
-112 = -14y
y = 8


</span>
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A party rental company has chairs and tables for rent. The total cost to rent 4 chairs and 8 tables is $89 . The total cost to r
puteri [66]
Let C = cost to rent each chairLet T = cost to rent each table

 4C + 8T = 73
2C + 3T = 28 
Multiply the 2nd equation by (-2) and then add the equations together 

  4C + 8T = 73
-4C - 6T = -56
 2T = 17T = 17/2 = 8.5

 Plug this in to the 1st equation to solve for C
 4C + 8(17/2) = 73
4C + 68 = 73
4C = 5C = 5/4 = 1.25
 So the cost to rent each chair is $1.25 and the cost to rent each table is $8.50 
7 0
3 years ago
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Mckinney donated 9 soda bottles to the after
Papessa [141]

Answer:

33%

Step-by-step explanation:

9 - 6 = 3

3 / 9 = 0.33

0.33 x 100 = 33%

Amount of what you have divided by the total amount of something, times by 100 gives you the percentage

4 0
3 years ago
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How many milliliters are in 12.34 liters?
NNADVOKAT [17]

Answer:

12,340 mL

Step-by-step explanation:

12.34 L x 1000= 12,340 mL

7 0
3 years ago
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4a+6b=10<br> 2a-4b=12<br><br> what does 12a =?
Usimov [2.4K]
If you have at least as many equations as your have unknown variables, the 'system' is solvable (unless the equations are copies of eachother).

In this case, isolate one letter and plug it in the other. I'm going for the 2a in the bottom one (it doesn't matter)

2a - 4b = 12 => (divide by two and move the b's to the other side)

a = 6 + 2b. (plug this one into the top equation)

4(6+2b) + 6b = 10 => 24+8b+6b = 10 => 24 + 14b = 10 => 14b = -14 => b=-1

a = 6 + -2 = 4.

So a=4 and b=-1. 


4 0
3 years ago
Can you help me image is here which 2 Should I drag
labwork [276]
The answers you should drag are 3 and 4
4 0
2 years ago
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