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3 years ago

NIOS/गणित -x

Mathematics

2 answers:

natulia [17]3 years ago

8 0

Answer:

is this a language? or....

Step-by-step explanation:

Inessa05 [86]3 years ago

6 0

Answer:

what language is this

Step-by-step explanation:

bc it looks very very very very hard to learn lmafoaoaijq

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write and solve two word problems: one that involves converting units of liquid volume and one that involves converting unit of

nataly862011 [7]

Convert 1 gallon to quarts = 4 quarts
convert 10 pounds (lbs) to grams

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3 years ago

The product of two positive integer numbers is 30 and the sum of the same two numbers is 11. Find the

vampirchik [111]

Answer:

5 and 6

Step-by-step explanation:

call them a and b, respectively

we have a*b=30 -> a=30/b

a+b=11 -> b+ 30/b=11

b=6 and a=5

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3 years ago

What is the measure, in radians, of central angle POQ? StartFraction 2 pi Over 3 EndFraction radians StartFraction 3 pi Over 4 E

Naya [18.7K]

Answer:

The answer is " $\bold{\frac{2 \pi}{3}}$ "

Step-by-step explanation:

Please find the complete question in the attached file.

Using formula:

$\to \bold{\theta = \frac{S}{r}}$

Where,

$\theta =central \ angle \\\\{S} = arc \ length\\\\{r} = radius \ length$

$\to \theta = \frac{PQ }{OQ}$

$=\frac{6 \pi}{9} \\\\ = \frac{2 \pi}{3}$

3 0

2 years ago

Read 2 more answers

Cassie is traveling 675 miles today to visit her brother and his family. So far, she has stopped for gas three times. At the fir

aleksandrvk [35]

Answer: She paid the most for the gas in the first stop ($3.35 per gallon).

Step-by-step explanation:

1. At the first stop she put in 7.1 gallons of gas and paid $23.79, so she paid:

$23.79/7.1 gallons=$3.35 per gallon.

2. At her second stop she put in 5.8 gallons of gas and paid $19.08, then the price per gallon was:

$19.08/5.8 gallons= $3.28 per gallon.

3. At the third stop she put 6.6 gallons and paid $20.39, then:

$20.39/6.6 gallons=$3.08 per gallon.

4. Then, you can conclude she paid the most for the gas in the first stop ($3.35 per gallon).

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3 years ago

If 7/x + 8/y = 2; 2/x + 12/y = 20, then x = ?

kvv77 [185]

Answer:

<h3><u>Given Question</u></h3>

$\sf \: \dfrac{7}{x} + \dfrac{8}{y} = 2, \: \dfrac{2}{x} + \dfrac{12}{y} = 20, \: then \: x \: = \:$

$\green{\large\underline{\sf{Solution-}}}$

Given pair of equations are

$\rm :\longmapsto\:\dfrac{7}{x} + \dfrac{8}{y} = 2 - - - - (1)$

and

$\rm :\longmapsto\:\dfrac{2}{x} + \dfrac{12}{y} = 20$

On dividing by 2, we get

$\rm :\longmapsto\:\dfrac{1}{x} + \dfrac{6}{y} = 10 - - - - (2)$

On multiply equation (1) by 3 and (2) by 4, we get

$\rm :\longmapsto\:\dfrac{21}{x} + \dfrac{24}{y} = 6 - - - - (3)$

and

$\rm :\longmapsto\:\dfrac{4}{x} + \dfrac{24}{y} = 40 - - - - (4)$

On Subtracting equation (3) from (4), we get

$\rm :\longmapsto\: - \dfrac{17}{x} = 34$

$\rm :\longmapsto\: - \dfrac{17}{34} = x$

$\bf\implies \:x \: = \: - \: \dfrac{1}{2}$

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<h3><u>Concept Used :- </u></h3>

There are 4 methods to solve this type of pair of linear equations.

1. Method of Substitution

2. Method of Eliminations

3. Method of Cross Multiplication

4. Graphical Method

We prefer here Method of Eliminations :-

To solve systems using elimination, follow this procedure:

<h3><u>The Elimination Method</u></h3>

Step 1: Multiply each equation by a suitable number so that the two equations have the same leading coefficient.

Step 2: Subtract the second equation from the first to eliminate one variable

Step 3: Solve this new equation for other variable.

Step 4: Substitute the value of variable thus evaluated into either Equation 1 or Equation 2 and get the value other variable.

4 0

3 years ago