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slava [35]
2 years ago
14

Y=3x-4 4x+3y=1 Sole by substitution

Mathematics
1 answer:
Keith_Richards [23]2 years ago
4 0

Answer:

4x+3(3x-4)=1

4x+9x-12=1

13x=13

x=1

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What is the answer to a + b + c??
marissa [1.9K]

Answer:

You can't add these because they are different variables

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
[18].Simplify (TTE): x(2x+y+5) - 2(x²+xy+5) + y(x + y) <br>​
Dovator [93]

Answer:

x(2x+y+5) - 2(x\²+xy+5) + y(x + y) = 5x -10  + y\²

Step-by-step explanation:

Given

x(2x+y+5) - 2(x\²+xy+5) + y(x + y)

Required

Simplify

We have:

x(2x+y+5) - 2(x\²+xy+5) + y(x + y)

Open brackets

x(2x+y+5) - 2(x\²+xy+5) + y(x + y) = 2x\²+xy+5x - 2x\²-2xy-10 + xy + y\²

Collect like terms

x(2x+y+5) - 2(x\²+xy+5) + y(x + y) = 2x\²- 2x\²+xy-2xy+ xy+5x -10  + y\²

x(2x+y+5) - 2(x\²+xy+5) + y(x + y) = 5x -10  + y\²

4 0
3 years ago
The spinner below is divided into five equal-sized sectors. What is the probability that the spinner will stop on a number great
madreJ [45]

Answer:

40%

Step-by-step explanation: If you have five equal-sized sectors, then the probability that the spinner will stop on 4 and 5 is 40%.

8 0
2 years ago
Which graph represents the function f(x) = - |x - 2| - 1?
HACTEHA [7]

Answer:

nsgs6

68÷9

02_3

73929

Step-by-step explanation:

8282×627=628373

5 0
2 years ago
Read 2 more answers
(c) The annual membership fee in 2013 is $198 for each adult and $75 for each child.
Serggg [28]

Answer:

i ) $96120

ii ) Singular adult fee in 2012: $186.91

Step-by-step explanation:

( i )

To find the costs of all 560 peoples you:

Multiply the amount of people by the fee,

440 × 198 = $87120

120 × 120 = $9000

Add these go get the sum of member fees: $96120

( ii )

First calculate what 1% of the adult fee would be:

198 ÷ 100 = 1.98 = 1%

Then calculate what 0.1% of the fee:

1.98  ÷ 10 = 0.198 = 0.1%

Now multiply 5 by the value of 1% to get 5% :

5 × 1.98 = 9.9

Then multiply 6 by the  0.1% to get 0.6% :

0.198 × 6 = 1.188

Add these numbers together to get:

1.188 + 9.9 = $11.088 = 5.6%

Due to the fact this question is referring to money we will round this number 2 decimal places (as money does not exceed 2dp)

$11.09

We now subtract this from the 2013 fee to find out the 2012 fee

$198 - $11.09 = $186.91

$186.91 was the cost of a singular adult fee in 2012

6 0
2 years ago
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