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blondinia [14]
3 years ago
8

How do i work out: 3/4-3/5

Mathematics
2 answers:
Mariana [72]3 years ago
6 0

In order to add or subtract fractions, they must have the
same denominator.  You need to change both of these
fractions to have the same denominator ... without changing
their values, of course.

The smallest common denominator for these fractions is  20 .

     3/4  is the same amount as  15/20 .

     3/5  is the same amount as  12/20 .

Now that they have the same denominator, you can do
the subtraction.

Travka [436]3 years ago
5 0
First step: Get a common denominator.

3/4:-

3*5=15
4*5=20

3/5:-

3*4=12
5*4=20

Now we can subtract easily because we have common denominators.

15/20-12/20

15-12/20

3/20

Now we have our most simple answer: 3/20


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The graph of y = f(x) is the solid black graph below. Which function represents the dotted graph?
nevsk [136]

Answer:

C (The lower left one)

Step-by-step explanation:

I saw that the vertex was equal to (-1,1) and that is the only answer that makes sense

6 0
3 years ago
A. Original Price: $16.20
Tom [10]

Answer:

The final price is $ 22.68  And Proportional constant is 1.4  

Step-by-step explanation:

Given as :

The Original price = $ 16.20

The rate of increase = 40%

Let The final price = x

Now,

Final price after increase = initial price × ( 1 + \frac{\textrm Rate}{100}

Or. Final price after increase = $ 16.20 × ( 1 + \frac{\textrm 40}{100}

Or, Final price after increase = $ 16.20 × ( 1.4 )

∴ Final price after increase = $ 22.68

Now , Proportional constant = \frac{22.68}{16.20}

I.e Proportional constant = 1.4

Hence The final price is $ 22.68  And Proportional constant is 1.4  Answer

4 0
3 years ago
(-3,-2). (9. -15)<br> Slope
zaharov [31]

answer:

-13/12

Step-by-step explanation:

use the formula to find slope using points

it is: y2-y1/x2-x1

plug in point values into formula

-3 = x1. 9 = x2

-2= y1. -15 = y2

-15-(-2)/ 9-(-3)

-13/12

4 0
3 years ago
Read 2 more answers
Shane, Cheryl, and Isaac went to the store to buy school supplies. Shane bought 4 pens, 3 folders, and 2 notebooks for a total o
vladimir1956 [14]

Answer: 3.00

Step-by-step explanation:

8 0
2 years ago
When compared with the independent variable, how many of the graphs represent a linear relationship?
strojnjashka [21]
Since a slope differe, this is not linear relationship. Simply, if you connect all points on the graph, they will not lie on the same line. Two next graphs represent the linear relationships, so they represent the linear relationship.
8 0
2 years ago
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