Ask question

Ask question

All categories

2 years ago

15

In this task, you have worked with numeric fractions and algebraic fractions (rational expressions). Describe how operations on

fractions with numbers are similar to, and different from, operations on fractions with variables.

1 answer:

MAXImum [283]2 years ago

4 0

When you use variables, you can end up with the denominator being zero which is undefined

You might be interested in

A textbook store sold a combined total of 260 chemistry and physics textbooks in a week. The number of chemistry books sold was

Lynna [10]

Let:

x = Chemistry textbooks sold

y = Physics textbooks sold

The textbook store sold a combined total of 260, so:

$x+y=260$

The number of chemistry books sold was three times the number of physics textbooks sold, so:

$x=3y$

Let:

$\begin{gathered} x+y=260_{\text{ }}(1) \\ x=3y_{\text{ }}(2) \end{gathered}$

Replace (2) into (1):

$\begin{gathered} 3y+y=260 \\ 4y=260 \\ y=\frac{260}{4} \\ y=65 \end{gathered}$

Replace the value of y into (2):

$\begin{gathered} x=3(65) \\ x=195 \end{gathered}$

5 0

6 months ago

Please helpppppppppppppppppppppppppp

adell [148]

Answer:

the answer is D or A

Step-by-step explanation:

step-by-step explanation

I hope this helps

5 0

2 years ago

Step by step <br> answer <br> please

Airida [17]

Answer:

C. 15

Step-by-step explanation:

<h2><em><u>∠ADC=∠ABC/2=30/2=15</u></em></h2>

7 0

2 years ago

Pleaseee help answer correctly !!!!!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!

NemiM [27]

Answer:

4

Step-by-step explanation:

4 0

2 years ago

2x - 3 > 15 or 3 + 7x < 17

Viktor [21]

Answer:

2x-3>15 and 3-7x>17 =

3-7x>17

-7x>14

x<-2

Step-by-step explanation:

Sorry this is not a proper equation. I think you meant this equation.

2x-3>15 and 3-7x>17

for this equation the answer is

3-7x>17

-7x>14

x<-2

6 0

2 years ago