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3 years ago

What is 1 1/4-5/6 PLEASE HELPPPPPP

Mathematics

2 answers:

andreev551 [17]3 years ago

8 0

5/12

5/4-5/6=5/12

Hope this helps!:)

Zigmanuir [339]3 years ago

3 0

here you go. I can explain if you want.

Firstly,you have to change the 1 1/4 to an improper fraction, by multiplying the denominator to the whole number then adding the answer to the numerator.

1×4+1 which equals to 5

so we now have 5/4

Secondly, we have to find a number that the denominators are both factors of. The answer to that is 12 because both four and six are factors of 12.

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Solve the following differential equation: (2x+5y)dx+(5x−4y)dy=0 *Hint: they are exact<br><br> C=.

Tpy6a [65]

Answer with Step-by-step explanation:

The given differential equation is

$(2x+5y)dx+(5x-4y)dy=0$

Now the above differential equation can be re-written as

$P(x,y)dx+Q(x,y)dy=0$

Checking for exactness we should have

$\frac{\partial P}{\partial y}=\frac{\partial Q}{\partial x}$

$\frac{\partial P}{\partial y}=\frac{\partial (2x+5y)}{\partial y}=5$

$\frac{\partial Q}{\partial x}=\frac{\partial (5x-4y)}{\partial x}=5$

As we see that the 2 values are equal thus we conclude that the given differential equation is exact

The solution of exact differential equation is given by

$u(x,y)=\int P(x,y)dx+\phi(y)\\\\u(x,y)=\int (2x+5y)dx+\phi (y)\\\\u(x,y)=x^2+5xy+\phi (y)$

The value of $\phi (y)$ can be obtained by differentiating u(x,y) partially with respect to 'y' and equating the result with P(x,y)

$\frac{\partial u}{\partial y}=\frac{\partial (x^2+5xy+\phi (y)))}{\partial y}=Q(x,y))\\\\5y+\phi '(y)=(5x-4y)\\\\\phi '(y)=5x-9y\\\\\int\phi '(y)\partial y=\int (5x-9y)\partial y\\\\\phi (y)=5xy-\frac{9y^2}{2}\\\\\therefore u(x,y)=x^2+10xy-\frac{9y^2}{2}+c$

5 0

3 years ago

What is the solution to this equation 3(80 - 9x) = x - 96

andreev551 [17]

240-27x = x-96

240 - 28x = -96

28x = 336

x = 12

3 0

3 years ago

Read 2 more answers

The ratio of french fries to packets of ketchup in Philip's bag is 8:1. What does this mean?

Illusion [34]

Answer:

The ratio means that for every 8 fries, there is a ketchup. So if there were 16 fries, then there are 2 ketchup.

3 0

2 years ago

Helpp

Alborosie

17 that’s the answer I did this one before

7 0

2 years ago

What is the value of b2-4ac for the following equation? 5x2+7x=6

poizon [28]

Answer:

169

Step-by-step explanation:

Given data

The function is

5x^2+7x=6

rearrange

5x2+7x-6=0

From the above expression, we can see that

a=5

b=7

c=-6

Substitute into the expression b^2-4ac

=7^2-4*5*-6

= 49-(-120)

=49+120

=169

Hence the answer is 169

8 0

2 years ago