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ElenaW [278]
3 years ago
9

Evaluate the expression 8 +3 +(-12) +4=

Mathematics
2 answers:
Mrac [35]3 years ago
4 0
Hopes this helps:

Answer: 3

1. Remove parentheses.
8 + 3 - 12 + 4

2. Simplify 8 + 3 to 11.
11 - 12 + 4

3. Simplify 11 - 12 = -1.
-1 + 4

4. Simplify.
3
Natalija [7]3 years ago
3 0
The answer is 3 cause the guy above me did the equation
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Factorise x(6x - 5y) - 4(6x - 5y)^2
Fed [463]

Answer:

(6x-5y)(20y-23x)

Step-by-step explanation:

x(6x - 5y) - 4(6x - 5y)^2

= (6x-5y)(x-4(6x-5y))

= (6x-5y)(x-24x+20y)

= (6x-5y)(20y-23x)

5 0
3 years ago
The cost price of a article is Rs.300/=. It is sold with 15% profit find the selling price of the article.
jek_recluse [69]

Answer:

sp=100+gain%/100*cp

100+15%/100*300

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3 years ago
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Write a number to represent the quantity.<br> a debt of $300
natka813 [3]

Answer:

A debt means subtracting from the original value so a debt of $300 can be expressed as -300.

5 0
3 years ago
What is the equation of the line that is parallel to the line 5x + 2y = 12 and passes through the point (-2, 4)?
Aneli [31]

Answer: 5x + 2y = -2

Step-by-step explanation:

Change 5x+2y=12 to slope intercept: 2y = 12 - 5x, y = -5x/2 + 6

A parallel line has the same slope, so the line we try to find is y = -5x/2 + b.

Substitute (-2, 4) in and get 4=5+b, so b = -1.

Therefore the answer is y = -5x/2 - 1, or if you want it in the original form it would be 2y = -5x - 2 ---> 5x+2y = -2.

Hope that helped,

-sirswagger21

7 0
4 years ago
For integers a, b and k, we know that a &gt;12, b &gt; 20 and a &lt; b. If b=7k, what is the value of k ?
Doss [256]

This question is incomplete, the complete question is;

For integers a, b and k, we know that a > 12, b < 20 and a < b. If b=7k, what is the value of k ?

Answer: the value of k = 2

Step-by-step explanation:

Given that;

a > 12

b < 20

a < b

If b = 7k

Now if k = 1      {b = 7k = 7}

b would be equal to 7 but b has to be greater than 20

IT CANT BE

if k = 2        { b = 7k = 14}

b would be equal to 14, a is greater than 12, b has to be less than b; 14 < 20,

a has to be less than than b ( 12 < 14 )

IT IS

if k = 3      {b = 7k = 21}  

b would be equal to 21, so b is greater than 20 and a is less than 21

IT CANT BE

Therefore the value of k = 2

5 0
3 years ago
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