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2 years ago

What is one half added to three quarters

Mathematics

1 answer:

Eduardwww [97]2 years ago

8 0

1/2 + 3/4 = 2/4 + 3/4 = 5/4 = 1 1/4
Here I change to the common denominator 4 so I could add them.

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40% of 50 is what number

nikitadnepr [17]

Step-by-step explanation:

Step 1:

Let the number be 50 and to find 40% of 50 is given interms of expression as follows

To express the percentage the following strategy is used

Eg: 40% = $40/100$

∴ To express 40% of 50 is

$(40/100)*50$

Step 2:

On simplification the above expression we could get

$0.4*50$

= 20

4 0

2 years ago

Read 2 more answers

If a=under root s(s-a)(s-b)(s-c) then the value of a, when a =3 b =4c = 5 and s =a+b+c by 2

kramer

Answer:

Step-by-step explanation:

Here it's given that ,

$\sf\red{\longrightarrow} A=\sqrt{s(s-a)(s-b)(s-c)}$

Also ,

$\sf\red{\longrightarrow} s =\dfrac{a+b+c}{2}$

And we need to find out the value of A , when

a = 3
b = 4
c = 5

So , on substituting the respective values to find s we have ,

$\sf\red{\longrightarrow} s =\dfrac{3+4+5}{2}=\dfrac{12}{2}=\bf{6}$

Now let's find out A as ,

$\sf\red{\longrightarrow} A = \sqrt{6(6-3)(6-4)(6-5)} \\$

$\sf\red{\longrightarrow}A =\sqrt{6 * 3 * 2 * 1}\\$

$\sf\red{\longrightarrow} A = \sqrt{3^2 * 2^2 *1^2}\\$

$\sf\red{\longrightarrow}A = 3*2\\$

$\sf\red{\longrightarrow}\boxed{\qquad \blue{\bf A = 6 \qquad}}$

7 0

1 year ago

one if the lights flickers every 7 seconds and the other light flickers very 8 seconds. how many seconds until both lights flick

bixtya [17]

It would be 56 seconds until both flicker at the same time

have a happy day :)

5 0

2 years ago

Read 2 more answers

Pls help meh

LekaFEV [45]

Answer:

A≈254.47ft²

Step-by-step explanation:

A=πr2=π·92≈254.469ft²

7 0

2 years ago

Solve the equation (1 + x²)dy +xydx= 0

Tatiana [17]

Answer:

$y=\frac{c}{\sqrt[]{x^2+1} }$

Step-by-step explanation:

(1 + x²)dy +xydx= 0

$(1+x^2)dy=-xydx\\\frac{1}{y}dy=\frac{-x}{x^2+1}dx\\$

Integrate both side

$lny=-\frac{1}{2} ln(x^2+1)+c\\y=\frac{c}{\sqrt[]{x^2+1} }$

7 0

2 years ago