How do you Evaluate the expression when =x−7 and =y2 .<br> 7y-x

Marrrta [24]

Answer:

$0.46=\frac{23}{50}$

Step-by-step explanation:

To write any decimal as a fraction you divide by 1 and multiply by a number (ranging from 10, 100, 1000 etc.) that will make 0.46 a whole number, this will explain:

Let x = $\frac{0.46}{1}$

10x = $10*\frac{0.46}{1} =\frac{4.6}{10}$

100x = $100*\frac{0.46}{1}=\frac{46}{100}$ this is our perfect fraction, now we simplify later

100x - 10x = $\frac{46}{100} -\frac{4.6}{10}$

90x = $\frac{46}{100} -\frac{4.6}{10} =0$ this is to confirm both fractions are equal

x is the same as $\frac{0.46}{1}$ as $\frac{4.6}{10}$ as $\frac{46}{100}$ but here x = $\frac{46}{100}$ because a fraction has to have no decimals.

So 0.46 is equal any of these values, as a fraction, on the other hand, it's improperly equal to $\frac{46}{100} = \frac{23}{50}$ here I divided by 2 to bring down the proper fraction. (fraction at its simplest form)

6 0

4 years ago

What is the value of a?-2(a-8)+6a=36

saul85 [17]

$-2(a-8)+6a=36 \\ \\ -2a + 16 + 6a = 36 \\ \\ 4a + 16 = 36 \\ \\ 4a = 36 - 16 \\ \\ 4a = 20 \\ \\ a = \frac{20}{4} \\ \\ a = 5 \\ \\$

The final result is: a = 5.

8 0

4 years ago

How many solutions does the system of equations below have?

Vilka [71]

Answer:

infinitely many solution

Step-by-step explanation:

HOPE IT HELPS

6 0

3 years ago

9) Order the fractions from least to greatest. 2 4 , 4 5 , 7 10 , 2 3 A) 2 4 , 7 10 , 2 3 , 4 5 B) 7 10 , 2 4 , 2 3 , 4 5 C) 2 4

iren [92.7K]

Answer:

C) $\frac{2}{4}, \frac{2}{3}, \frac{7}{10}, \frac{4}{5}$

Step-by-step explanation:

Given fractions:

$\frac{2}{4}, \frac{4}{5}, \frac{7}{10},\frac{2}{3}$

To arrange the fractions from least to greatest.

Solution:

In order to arrange the fractions from least to greatest, we need to make the denominators common by taking LCD.

LCD of 4,5,10,3 can be found using their multiples.

4= 4,8,12,16,20,24,28,32,36,40,.........60

5= 5,10,15,20,25,30,.........60

10= 10,20,30,40,50,60

3= 3,6,9..........................60

So, 60 is the LCD.

Making the denominators common by multiplying same numbers to numerator and denominator.

$\frac{2}{4}=\frac{2\times 15}{4\times 15}=\frac{30}{60}$

$\frac{4}{5}=\frac{4\times12}{5\times 12}=\frac{48}{60}$

$\frac{7}{10}=\frac{7\times 6}{10\times 6}=\frac{42}{60}$

$\frac{2}{3}=\frac{2\times 20}{3\times 20}=\frac{40}{60}$

Comparing the numerators we can arrange the fractions.

$\frac{2}{4}, \frac{2}{3}, \frac{7}{10}, \frac{4}{5}$

7 0

3 years ago

Which two pairs of numbers have cubes that add up to 1729? because there are two pairs of numbers to find, you should select a t

qwelly [4]

It is called the hardy Ramanujan's number, named after the Indian mathematician, Srinivasa Ramanujan, and British Mathematician G. H Hardy.
Hardy went to visit Ramanujan while he was ill. He noticed that the number of the taxi he went in was 1729, which he thought was a dull number.

1729 = 12³ + 1³
1729 = 10³ + 9³

Fujiwara claimed that he proved there are only four numbers that have the property. Even though it seems to be true, he never has shown his proof. No other natural number, other than 1729, can be expressed as a sum of the cubes of two natural numbers in two different ways.

4 0

4 years ago

How do you Evaluate the expression when =x−7 and =y2 . 7y-x