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3 years ago

In math what is 1/4+1/2 and can you explain how you got this?

2 answers:

5 0

1/4 + 1/2 ..you cant directly add them as they are unlike fractions ..so to add then first convert them into like fractions ...for that find the LCM of the denominators ..2 and 4 ..
LCM of 2 and 4 is .. 4
so 1/4 + 1/2 will become 1/4 + 2/4 ...(because we multiplied 1/2 with 2 to make denominator as 4)

=> the answer is 3/4 ..

this is how i do ..

Hope it helps !!!

Triss [41]3 years ago

4 0

1/4+1/2
Convert 1/2 to 2/4 so that both fractions have the same common denominator
1/4+2/4
Add the numerator but NOT the denominator
Final Answer: 3/4 or 0.75

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Please Help!! 50pts!!

Katyanochek1 [597]

The labeled angles form a vertical pair, and angles belonging to a vertical pair are congruent. So

$3x+50=6x-10\implies3x=60\implies x=20$

8 0

3 years ago

Read 2 more answers

Ivision (Level 1) AM lt when 3x3 + 8x2 + 20x + 25 is divided by 3x + 5? Submit Answer

labwork [276]

Answer: =3x^3+8x&2+ 85 /3 x+5

Step-by-step explanation:

3x3+8x2+20x+25 ÷ 3x+5

= 3x^3+8x^2+20x+25/3 x + 5

= (3x3)+(8x2)+(20x+ 25/3 x)+(5)

=3x^3+8x&2+ 85 /3 x+5

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3 years ago

PLEASE HELP ME I'M DESPERATE. Delta Math Question!!!

makkiz [27]

Answer:

cos S = $\frac{7}{25}$

Step-by-step explanation:

this is a 7- 24- 25 right angle with RS = 7 , then

cos S = $\frac{adjacent}{hypotenuse}$ = $\frac{RS}{QS}$ = $\frac{7}{25}$

7 0

2 years ago

7. Which of the following can be determined from the graph below?

tatyana61 [14]

Answer:

The ordered pair (6,25) is a solution to both

$y=-\frac{5}{2}x+40$ and $y=\frac{5}{3}x+15$

Step-by-step explanation:

Part 7)

step 1

Find the equation of the line with positive slope

take the points (0,15) and (9,30)

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the given values

$m=\frac{30-15}{9-0}$

$m=\frac{15}{9}$

simplify

$m=\frac{5}{3}$

Find the equation of the line in slope intercept form

$y=mx+b$

we have

$m=\frac{5}{3}$

$b=15$

substitute

$y=\frac{5}{3}x+15$

step 2

Find the equation of the line with negative slope

take the points (0,40) and (8,20)

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the given values

$m=\frac{20-40}{8-0}$

$m=-\frac{20}{8}$

simplify

$m=-\frac{5}{2}$

Find the equation of the line in slope intercept form

$y=mx+b$

we have

$m=-\frac{5}{2}$

$b=40$

substitute

$y=-\frac{5}{2}x+40$

step 3

Find the solution of the system

we know that

The solution of the system of equations is the intersection point both graphs

The intersection point is (6,25) ----> see the graph

therefore

The ordered pair (6,25) is a solution to both $y=-\frac{5}{2}x+40$ and

$y=\frac{5}{3}x+15$

7 0

3 years ago

Which of the following is not a Pythagorean triple?

Ierofanga [76]

Answer:

(7, 24, 26)

Step-by-step explanation:

A Pythagorean triple must have an odd number of even numbers. The triple (7, 24, 26) is not a Pythagorean triple.

_____

Additional comment

For an odd integer n, a triple can be formed as ...

(n, (n²-1)/2, (n²+1)/2)

That is, the following will be Pythagorean triples.

(3, 4, 5)
(5, 12, 13)
(7, 24, 25)
(9, 40, 41)
(11, 60, 61)

Another series involves even numbers and numbers separated by 2:

(2n, n²-1, n²+1)

(8, 15, 17)
(12, 35, 37)
(16, 63, 65)

In this list, if n is not a multiple of 2, the triple will be a multiple of one from the odd-number series.

It is a good idea to remember a few of these, as they tend to show up in Algebra, Geometry, and Trigonometry problems.

8 0

2 years ago