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
Novay_Z [31]
3 years ago
13

Work out the value of 3x + 2y when x=4 and y=-5

Mathematics
2 answers:
Kruka [31]3 years ago
5 0

3x + 2y =

3*4 + 2*-5=

12 + -10 = 2


Anon25 [30]3 years ago
4 0
Just substitute the equation with the given

The given are 
x = 4 and y = -5
the equation is
3x + 2y
3 (4) + 2 (-5) = 12 - 10 = 2
You might be interested in
Is 3 a factor of 14t-20?<br><br> Yes<br><br> No
Sindrei [870]

Answer:

No

Step-by-step explanation:

I dont really know

8 0
3 years ago
Read 2 more answers
Ryan bought a sofa on sale for $342. This price was 28% less than the original price.
Snezhnost [94]
The correct answer is $475
5 0
3 years ago
*angel pair relation ships* SOMEONE PLS HELP I DO NOT GET THIS I AM TIMED!!
inessss [21]

i dont know if im right......

2. x = 9

3. x = -7

4. x = 3.42 or 3.41

8 0
3 years ago
Read 2 more answers
A stone is thrown vertically upward from a platform that is 20 feet height at a rate of 160 ft/sec. Use the quadratic function h
Nutka1998 [239]

Check the picture below.

\textit{vertex of a vertical parabola, using coefficients} \\\\ y=\stackrel{\stackrel{a}{\downarrow }}{-16}x^2\stackrel{\stackrel{b}{\downarrow }}{+160}x\stackrel{\stackrel{c}{\downarrow }}{+20} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right)

\left(-\cfrac{ 160}{2(-16)}~~~~ ,~~~~ 20-\cfrac{ (160)^2}{4(-16)}\right) \implies \left( - \cfrac{ 160 }{ -32 }~~,~~20 - \cfrac{ 25600 }{ -64 } \right) \\\\\\ \left( 5 ~~~~ ,~~~~ 20 +400 \right)\implies (\stackrel{seconds}{5}~~,~~\stackrel{feet}{420})

6 0
2 years ago
How do you graph 24x−6y=18
nikklg [1K]

Answer:

You will graph a function with the equation being y = 4x - 3, to plot this function read step by step explanation.

Step-by-step explanation:

First we have to find the equation of the line so we do....

24x - 6y = 18

24x = 18 + 6y

6y = 24x - 18

y = 4x - 3

Now that we know the equation we just have to find two point by using this equation and connect them between each other in order to graph the function represented by this equation. For example

For x = 0

y = 4x - 3

y = -3

So we know that there is a point (0, - 3)

For x = 1

y = 4x - 3

y = 4 - 3

y = 1

So we know that there is a a point  (1, 1)

Connect the two point and you will get the function graph

6 0
3 years ago
Other questions:
  • Analyze the conjectures. Who do you think is correct and why ?
    8·1 answer
  • wo machines used to fill soft drink containers are being compared. The number of containers filledeach minute is counted for 60
    13·1 answer
  • Calculate total distance?
    10·1 answer
  • alinia has a spinner that equals five sections red blue green purple and orange she spins the spinner 200 times aout how many ti
    9·1 answer
  • How is 3*7 and 6*7 related
    6·1 answer
  • PLEASE HELP ASAP- WILL MARK BRAINLIEST
    7·1 answer
  • How do you know in what direction to shade on the line?Explain.
    8·1 answer
  • On a farm 14 of the goat are male and 11 of the goat are female what is the percentage
    8·1 answer
  • Please help its the last one please
    12·1 answer
  • Help- pleasee brainilist - -3/7 divided by 1/2
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!