1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dlinn [17]
2 years ago
9

I don't know how to evaluate an algebraic expression. How can I evaluate an algebraic expression?

Mathematics
1 answer:
Readme [11.4K]2 years ago
5 0

Answer:

To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. if it's 6÷x=3, do 6÷3=2 to get the value of x. 6÷2=3.

You might be interested in
Jana finished 1/4 of her homework at school and 2/3 of it before dinner. How much of her homework has she done
Galina-37 [17]

Answer:

the answer is 11/12

Step-by-step explanation:

well she has done 11/12 of her work so she just needs to do i more question baccically

5 0
3 years ago
What is the equation of the line that passes through the points (4/5,1/5) and (1/2,3/2)?​
Setler [38]

Answer:

y-\frac{3}{2}=\frac{-13}{3}(x-\frac{1}{2}) point-slope form

13x+3y=11 (standard form)

Let me know if you prefer another form.

Step-by-step explanation:

The slope of a line can be found using \frac{y_2-y_1}{x_2-x_1} provided you are given two points on the line.

We are.

Now you can use that formula.  But I really love to just line up the points vertically then subtract them vertically then put 2nd difference over 1st difference.

 (4/5  ,  1/5)

-( 1/2  ,  3/2)

-----------------

3/10          -13/10

2nd/1st = \frac{\frac{-13}{10}}{\frac{3}{10}}=\frac{-13}{3} is our slope.

So the following is point-slope form for a linear equaiton:

y-y_1=m(x-x_1) \text{ where } m \text{ is slope and } (x_1,y_1) \text{ is a point on the line }    

Plug in a point (x_1,y_1)=(\frac{1}{2},\frac{3}{2}) \text{ and } m=\frac{-13}{3}.

This gives:

y-\frac{3}{2}=\frac{-13}{3}(x-\frac{1}{2})

I'm going to distribute:

y-\frac{3}{2}=\frac{-13}{3}x-\frac{-13}{6}

Now I don't like these fractions so I'm going to multiply both sides by the least common multiply of 2,3, and 6 which is 6:

6y-9=-26x+13

Add 26x on both sides:

26x+6y-9=13

Add 9 on both sides:

26x+6y=22 This is actually standard form of a line.

It can be simplified though.

Divide both sides by 2:

13x+3y=11 (standard form)

7 0
3 years ago
Read 2 more answers
-5+4y=-21 simplify your answer as much as possible <br>y=
nordsb [41]
4y=-21+5
4y=-16
y=4
simplified
3 0
3 years ago
Read 2 more answers
PLSSSS HELPP ASSPPPP!!!!
SVETLANKA909090 [29]

Answer:

$20.50

Step-by-step explanation:

The pizza itself is $18. If you wanted 5 toppings you would do .50 multiplied by 5. That would give you a total of $2.50 for the 5 toppings. 18 plus 2.50 is 20.50.

6 0
2 years ago
Read 2 more answers
Can anyone help me on this? HELP NEEDED PLEASE!
pav-90 [236]
I am pretty sure the answer is: 1.79%
3 0
2 years ago
Read 2 more answers
Other questions:
  • Look at this prism and its net. Rectangular prism with length labeled 5 meters, width labeled 7 meters, and height labeled 12 me
    9·1 answer
  • amy drove to her mothers house which is 204 miles away if it took her 3 hours what was her average speed
    5·1 answer
  • A camera is placed in front of a hyperbolic mirror. The equation of the hyperbola that models the mirror is y^2/16-x^2/9=1 where
    8·1 answer
  • John made 12 dollars per delivery plus a base pay of 30 dollars. If he made 150 dollars, how
    7·1 answer
  • Help please!! Thank you :)
    9·1 answer
  • PLEASE HELP I WILL GIVE THE BRAINLIEST ANSWER FAST<br><br>second attachment has the diagram
    8·1 answer
  • Find the length of the third side. If necessary, write in simplest radical form.
    6·1 answer
  • the average of nine number is 16. the average of 4 of these number is 11. what is the average of the other five number ?​
    14·1 answer
  • Q(x)=-1/2x-3; q(x)=-4 <br> Help
    5·1 answer
  • !!ASAP!! !!HELP!!<br> pls help. iv been trying to do this for 3 days. please.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!