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Leona [35]
3 years ago
10

Please help!!! ill mark brainliest

Mathematics
1 answer:
Vesnalui [34]3 years ago
6 0

3x - 1 = 3x + 1  

subtract 3x from both sides to get (-1 = 1).  This is a false statement so it is: CONTRADICTION

************************************************

4x - 11 = 7

add 11 to both sides and then divide both sides by 4 to get (x = \frac{18}{4} = \frac{9}{2}).  This statement is true only when x = \frac{9}{2} so it is: CONDITIONAL

*************************************************

2 - 8x = 2 - 8x

add 8x to both sides to get (2 = 2).  This is a true statement so it is: IDENTITY

*************************************************

x + 1 = -x + 4

add x to both sides, subtract 1 from both sides, and divide both sides by 2 to get  (x = \frac{3}{2} ). This statement is true only when x = \frac{3}{2} so it is: CONDITIONAL

Answer: B, A, C, A

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Two brothers are saving money to buy tickets to a concert. their combined saving is $55 one brother has $15 more than the other.
Vladimir [108]

Brother one: x

Brother two: x + 15

---

Make them add up to 55 in an equation.

x + (x + 15) = 55

Combine like terms.

2x + 15 = 55

Subtract 15 from both sides.

2x = 40

Divide both sides by 2.

x = 20

Plug 20 for x into brother two.

(20) + 15 = 35

Brother one has saved $20, brother two has saved $35.

6 0
3 years ago
PLEASE HELP ME WILL MARK BRAINLIEST! 10 POINTS!!!!!!!!!!
Darya [45]
Yes his equations are correct
3 0
2 years ago
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How many people aged 16 and under 17 years can be employef for the same cost as one adult employee
makkiz [27]
Maximum 10 thausand lakhs

6 0
3 years ago
Read 2 more answers
Write the slope-intercept form of the equation of the line described.
yarga [219]
The equation for a line is y=mx+b

m is the slope, so when a line is perpendicular to another line is has a slope which is an opposite reciprocal, so change the -1/2 (the slope of the other line) to 2/1 or just 2

so m=2

now you need to plug in the point they give you for x and y 

y=mx+b
4=2(4) + b
simplify
4=8 + b
subtract 8 over
-4 = b 

now that you know that slope (m) and the y-intercept (b) you can plug those two numbers into the original equation for the answer

y= 2x -4
7 0
3 years ago
Rodrigo is a salesman who earned a base pay of $38,800 and was paid commission of 14% for each book set he sold. If x represents
Wewaii [24]

Answer:

y = 38800 + 0.14x

Step-by-step explanation:

Rodrigo is a salesman who earned a base pay of $38800 and a commission of 14% for each book set he sold.

If Rodrigo sells one set of books he earns the commission of 0.14

So on the sales of x sets of books Rodrigo will earn commission of 0.14x

Therefore, Rodrigo's total pay will be y = Basic pay + commission

y = 38800 + 0.14x is the equation representing total pay of Rodrigo's.

4 0
3 years ago
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