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3 years ago

Combine like terms to simlify the expression: 2/5k—3/5+1/10k

Mathematics

2 answers:

Umnica [9.8K]3 years ago

5 0

(4/10)k + (1/10)k -3/5

(5/10)k - 3/5

(1/2)k - 3/5 is the answer to the question

Aleks04 [339]3 years ago

4 0

Change the first fraction to 4/10K

THen

4/10K - 3/5 + 1/10k = 5/10k - 3/5

Simplify 5/10k

1/2k - 3/5 is your answer

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Alina spends 60% of her monthly income of rs 35000.what is her savings?find it.

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Step-by-step explanation:

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3 years ago

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dalvyx [7]

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3 years ago

Which ordered pairs are solutions to the inequality 3x-4y>5

Sloan [31]

Note: you did not provide the answer options, so I am, in general, solving this query to solve your concept, which anyways would clear your concept.

Answer:

Please check the explanation.

Step-by-step explanation:

Given the inequality

$3x-4y>5$

All we need is to find any random value of 'x' and then solve the inequality.

For example, putting x=3

$3\left(3\right)-4y>5$

$9-4y>5$

$-4y>-4$

$\mathrm{Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right)}$

$\left(-4y\right)\left(-1\right)$

$4y$

$\mathrm{Divide\:both\:sides\:by\:}4$

$\frac{4y}{4}$

$y$

So, at x = 3, the calculation shows that the value of y must be less

than 1 i.e. y<1 in order to be the solution.

Let us take the random y value that is less than 1.

As y=0.9 < 1

so putting y=0.9 in the inequality

$3\left(3\right)-4\left(0.9\right)$

$=9-3.6$

$=5.4$

As 5.4 > 5

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6 0

3 years ago

Solve equations by using elimination <br> -4+5y= 13<br> X-5y=21<br> ( , )

tigry1 [53]

Answer:

y=17/5 ,x= 38

Step-by-step explanation:

-4+5y =13 add 4 both side

4-4+5y=13+4

5y=17

5y/5=17/5 y=17/5

x-5y=21

x-5(17/5)=21

x-17=21

x=21+17= 38

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3 years ago

What is the least common denominator for these two rational expressions n^4/n^2+2n+1,7/n^2-8n-9

sergeinik [125]

Answer:

Step-by-step explanation:

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the least common denominator for these two rational expressions is :

(n+1)(n-9)

7 0

3 years ago