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
GenaCL600 [577]
3 years ago
11

Need help with math work

Mathematics
2 answers:
gizmo_the_mogwai [7]3 years ago
4 0
Plug in x = 12 and y = -5 into the given equation:-

3(12) - 3(-5) = 36 + 15 = 51  Not 21

So (12,-5) is not a solution.
frosja888 [35]3 years ago
3 0
Review:  a "solution" to an equation is a numerical value (or set of values) that makes the equation true. 

Here you are given the linear equation 3x - 3y = 21 and the point (12,-5).  If x=12 with y= -5, then (12,5) is a solution of 3x - 3y = 21.

Substituting, 3(12) - 3(-5) = 21.  Is this true or false?

36 + 15 = 21 is obviously not true.  Thus, (12, -5) is NOT a solution of 3x - 3y = 21.
You might be interested in
a lever will balance if the mass of object 1 times its distance from the fulcrum equals the ma's of object 2 times its distance
Afina-wow [57]

If the distance between the fulcrum and the effort is increased, the distance that the effort must move the lever increases as well. Conversely, if the distance between the fulcrum and the load is decreased, the distance that the lever must move also decreases.

so we have too apply more force to pull the lever cause the distance is 1x smaller then mia lever so on mia lever we ull moree to get it to move!

4 0
3 years ago
In order to sign "uncle," one must first make a "U" handshape and then move in two circles, just under the face. True False
Katarina [22]

Its false because it's false lol

4 0
3 years ago
Gina went to a restaurant for lunch. On her bill the sales tax equals $2.34. If the tax is 8.5%, what was the subtotal (without
bagirrra123 [75]

Answer:

$2.5389

Step-by-step explanation:

Given data

Cost of lunch = $2.34

Tax= 8.5%

Let us compute the cost of the tax

=8.5/100*2.34

=0.085*2.34

= $0.1989

Hence the total is = 0.1989+2.34

=$2.5389

4 0
3 years ago
-10x-6y=0 -4x -6y=54 find the solution of this system of equations
ad-work [718]

You can see that the term -6y appears in both equations. In this cases, we can leverage this peculiarity and subtract the two equations to get rid of the repeated term. So, if we subtract the first equation from the second, we have

(-4x -6y) - (-10x-6y) = 54-0 \iff 6x = 54 \iff x = 9

Now that we know the value of x, we can substitute in any of the equation to deduce the value of y: if we use the first equation, for example, we have

-10x-6y=0 \iff -10\cdot 9 - 6y = 0 \iff -90-6y=0 \iff 6y = -90 \iff y = -15

7 0
3 years ago
Nate naught shares of a stock at $36.85. The value of the shares increased by $2 more than 40% when Nate sold them. At what pric
kobusy [5.1K]

Answer:

$ 51.59

Step-by-step explanation:

Nate has shares worth $ 36.85.

He says that the value of these shares increased by $ 2 plus 40% of their original value, therefore the final value would be as follows:

$ 2 + $ 36.85 * 0.40 = $ 2 + $ 14.74 = $ 16.74, was the increase.

The sale value was of this increase plus the original value, therefore:

$ 36.85 + $ 14.74 = $ 51.59

Nate sold the shares at a value of $ 51.59.

6 0
3 years ago
Other questions:
  • One half of a number (use x) is equal to 8 less than the same number.
    11·1 answer
  • PLEASE HELPPP
    7·1 answer
  • Help me with this.. thanks
    12·1 answer
  • Free points: this is because of all the kindness I have seen on brainly:
    8·2 answers
  • Find the 12th term of the geometric sequence
    7·1 answer
  • Find the area. Simplify your answer.<br> X+8<br> х
    7·2 answers
  • Use the equation below to find T, if w= 70, m= 11, and a = 3.
    6·1 answer
  • Find a mathematical model for the below statement. (Use k for the constant of proportionality.) The gravitational attraction F b
    8·1 answer
  • What is ur favorite anime mine is attack on titan
    12·2 answers
  • A manager bought lunch for his coworkers. Each person picked either a salad or a burger. The salads cost $5 each and the burgers
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!