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sergij07 [2.7K]
3 years ago
15

Y-z=m(x-k) solve for x

Mathematics
1 answer:
valina [46]3 years ago
8 0

Answer:

x = y/m - z/m +k

Step-by-step explanation:

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D)) The ratio of the monthly income and expenditure of Sunayana is 5 : 3. If she
Gnom [1K]

Answer:

Sunayana's income is ₹25000 and expenditures are ₹15000.

Step-by-step explanation:

Let i denote the monthly income and e denote the expenditures.

We know that the ratio of the monthly income to expenditure is 5:3. So, we can write the following proportion:  

\frac{i}{e}=\frac{5}{3}

Let's multiply both sides by e. This yields:

i=\frac{5}{3}e

We know that when the income is <em>increased</em> by 5000 and the expenditures are <em>decreased </em>by 3000, the new ratio is 5:2. So, we can write the following proportion:

\frac{i+5000}{e-3000}=\frac{5}{2}

Let's multiply both sides by (e-3000):

i+5000=\frac{5}{2}(e-3000)

Since we know that i=\frac{5}{3}e, substitute:

\frac{5}{3}e+5000=\frac{5}{2}(e-3000)

So, let's solve for the expenditures. Distribute the right:

\frac{5}{3}e+5000=\frac{5}{2}e-7500

Subtract \frac{5}{2}e from both sides:

-\frac{5}{6}e+5000=-7500

Subtract 5000 from both sides:

-\frac{5}{6}e=-12500

Multiply both sides by -6/5. So, the expenditures are:

e=\text{Rs }15000

We can use the original ratio to find Sunayana's income:

i=\frac{5}{3}e

Substitute 15000 for e. Evaluate:

i=\frac{5}{3}(15000)=\text{Rs }25000

So, Sunayana's income is ₹25000 and expenditures are ₹15000.

And we're done!

Edit: Wrong currency, sorry about that!

3 0
3 years ago
Read 2 more answers
46n=350 what does n stand for?
bogdanovich [222]

Answer:

7.6

7.61

Step-by-step explanation:

7.608695652

4 0
2 years ago
What is the constant of proportionality in this proportional relationship
Nikitich [7]

Answer:

the answer is two

Step-by-step explanation:

3 0
2 years ago
What is the cube of 1.1 ??
Mandarinka [93]

Answer:

1000

Step-by-step explanation:

hope this helps!!!!!!!!

4 0
3 years ago
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A number is multiplied by 4 then 7 is added to the product after subtracting 3 the result is 8. what is the number​
ollegr [7]

Answer:

1

Step-by-step explanation:

x*4+7-3=8

4x+7-3=8

4x+4=8

4x=4

x=1

5 0
2 years ago
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