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Ahat [919]
3 years ago
9

How to add subtract multiply and divide fractions?

Mathematics
1 answer:
EastWind [94]3 years ago
3 0
Add and subtract: Find Least Common Denominator, multiply out, add/subtract as normal

Multiply: Multiply both top and bottom

Divide: Multiply by reciprocal
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A certain television is advertised as a 55-inch TV (the diagonal length). If the width of the TV is 42 inches, how many inches t
Mumz [18]

Answer:

69.20in

Step-by-step explanation:

Given data

diagonal of the TV d= 55in

Widht of the TV w=  42 in

Hight h= ???

Applying the Pythagoras theorem

d^2= w^2+ h^2

substitute

55^2= 42^2+ h^2

3025= 1764+ h^2

3025+1764= h^2

4789= h^2

h=√4789

h= 69.20

Hence the Heigth is 69.20in

7 0
3 years ago
6x +8=5x=4 <br> what is the value of x
Free_Kalibri [48]

Answer:

x = -4/11

Step-by-step explanation:

add the x values.

11x+8=4

subtract 8 from each sides

11x=-4

divide by 11

x=-4/11

8 0
2 years ago
Angie read 22 pages during a 30-minute study hall. At this rate, how many pages would she read in 45 minutes
frosja888 [35]
45 minutes is equal to 1.5 times 30:

1.5*30=45

so she will also read 22*1.5 pages, which is 22+11=33

so she will read 33 pages
4 0
3 years ago
20 points
Fantom [35]

Answer:

The value 4.5 is rational and the value 15−−√ is irrational. The sum of 4.5 and 15−−√ has a non-repeating and non-terminating decimal expansion. Therefore, the sum of 4.5 and 15−−√ is irrational. I can't explan but that's the correct Answer

7 0
2 years ago
Geometry proof<br> help please
Aleks [24]
JK = MN because of Given

∠JLK = ∠MLN because of the vertical angle theorem

JL = LN because of definition of midpoint

ΔJLK = MLN because of SAS

∠K = ∠N because corresponding angles of congruent triangles are congruent.

Hope this helps!<span />
6 0
3 years ago
Read 2 more answers
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