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
NeX [460]
3 years ago
10

Martin was given this expression to simplify: 23x + xy – y + 3y + 5 – 20x + 6xy He simplified the expression to: 43x + 7xy −3y W

hat were Martin’s errors? Check all that apply. The combined coefficients of the x terms should be 3x, not 43x. The 7xy should be –7xy. The coefficients of the y terms have been multiplied. When you combine like terms, you add or subtract the coefficients. The constant was left off. The terms xy and 6xy are not like terms because there are two variables.
Mathematics
2 answers:
Debora [2.8K]3 years ago
7 0

Answer:

its a c d

Step-by-step explanation:

got the quiz right on edge

tensa zangetsu [6.8K]3 years ago
3 0

Answer:

Step-by-step explanation:

23x + xy - y + 3y + 5 - 20x + 6xy = 23x - 20x + xy  + 6xy -y + 3y + 5

                                                     = 3x + 7xy + 2y + 5

Errors:1) The combined coefficients of the x terms should be 3x, not 43x

2) The coefficients of the y terms have been multiplied.

3) The constant was left off.

You might be interested in
Convert the function into intercept form. Show your work. y=-x^2+5x-36
Montano1993 [528]

{ - x}^{2} + 5x + 36 \\  { - x}^{2}  + 9x - 4x + 36 \\  - x \times (x - 9) - 4(x - 4) \\  \\ answer \:  \:  - ( x - 9) \times (x \times 4)
3 0
3 years ago
What is f(2) = 2x -6
Dennis_Churaev [7]

Answer:

f(2) = -2

Step-by-step explanation:

f(2) = 2x - 6

f(2) = 2(2) - 6

f(2) = 4 - 6

f(2) = -2

4 0
3 years ago
I need help please im only in the 7th grade &’ i don’t know what to do !
dedylja [7]

Answer: In the chart, put 6 in place of the question mark.

The equation should be something like w = 2/3 p

W is the number of quarts of water. P is the number of quarts of Pineapple juice.

This week they will need 3 times the previous week so 18 quarts of pineapple juice and 12 quarts of sparkling water.

Step-by-step explanation:

If the basic recipe is 2 water to 3 juice, and they used 4 quarts if water, you can see that is <u>double the amount of</u> water so you need <u>double the amount  </u> of juice. 2 times 3 is 6.

<em>Unit rate</em> means for ONE quart of juice, how much sparkling water is used. that should be  1 Pineapple Juice for 2/3 Sparkling water

OR

for EACH quart of sparkling water, how much juice do you need.

that would be 1 unit of Sparkling Water for 1 1/2 units of Pineapple Juice

4 0
2 years ago
5. Find the lateral surface area of the net of<br> the cube.<br> 1.8 cm
igor_vitrenko [27]

<u>Given</u>:

Given that the side length of the cube is 1.8 cm

We need to determine the lateral surface area of the cube.

<u>Lateral surface area of the cube:</u>

The lateral surface area of the cube can be determined using the formula,

LSA=4a^2

where a is the side length.

Substituting a = 1.8 in the above formula, we get;

LSA=4(1.8)^2

Squaring the term, we get;

LSA=4(3.24)

Multiplying, we get;

LSA=12.96

Thus, the lateral surface area of the cube is 12.96 cm²

6 0
3 years ago
Need help its due at 7 pm so take your time
s344n2d4d5 [400]

Answer:

141x

Step-by-step explanation:

I just did PEMDAS

3x^2-33x-180

multiplied 3x^2 and got 6x

Subbed 180 by 33 and got 147x

then I subbed 147x by 66x and got 141x

3 0
2 years ago
Other questions:
  • The price of oranges went from $.90 per lb to $1.20 per lb in five years. Find the rate of change of the price of oranges.
    7·1 answer
  • Find the common ratio of the following geometric sequence.
    11·1 answer
  • The cost to rent a hall for school functions is $60 per hour. Write an expression for the cause of renting the hall for h hours.
    12·1 answer
  • A car uses 20 gallons of fuel for 440 miles. how much fuel will the car use to travel 1054 miles
    8·1 answer
  • Which choice is NOT a way to find 9 ÷ 4?
    14·1 answer
  • What is the length of BC in the right triangle below?
    11·1 answer
  • A coach ordered 6 soccer goals for $678. how much did each goal cost
    13·1 answer
  • What is the measure of the angle in degrees? (Write number in answer only)
    5·1 answer
  • Which graph shows the solution to the system of linear inequalities?
    13·2 answers
  • Which equation can be used to solve 3/5 divided by 7/10
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!