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
Vika [28.1K]
2 years ago
15

What is -2(7-y)+4=-4?

Mathematics
1 answer:
xeze [42]2 years ago
3 0
-2(7-y)+4=-4
Distributive property for -2(7-y)
-14+2y+4=-4
Addition property
-14+14+2y+4=-4+14
2y+4=10
Subtraction property
2y+4-4=10-4
2y=6
Division property
2y/2=6/2
Y=3
You might be interested in
Identify the equation for the parabola with vertex (0, 0) and directrix x = 2.5.
GREYUIT [131]

Answer:

jk

Step-by-step explanation:

8 0
3 years ago
Jennifer has carpet in her square bedroom. She decides to also purchase carpet for her living room which is rectangular in shape
shtirl [24]

Answer/Step-by-step explanation:

Let's highlight the dimensions of the bedroom and living room using the information given in the question:

==>Squared Bedroom dimensions:

Side length = w = x ft

Area = x*x = x²

==>Rectangular living room dimensions:

width = side length of the squared bedroom = x

length = (x + 9) ft

Area = L*W = x*(x+9) = x² + 9x

Now let's match each given expression with what they represent:

==>"the monomial, x, a factor of the expression x² + 9x" represents "the width of the carpet in the living room"

As we have shown in the dimensions of the squared bedroom above.

==>"the binomial, (x + 9), a factor of the expression x² + 9x" represents "the length of the carpet in the living room" as shown above in the dimensions for living room

==>"the second-degree term of the expression x² + 9x" represents "the area of the carpet in the bedroom"

i.e. the 2nd-degree term in the expression is x², which represents the area of the carpet of the given bedroom.

==>"the first-degree term of the expression x2 + 9x" represents "the increase in the area of carpet needed for the living room".

i.e. 1st-degree term in the expression is 9x. And it represents the increase in the area of the carpet for the living room. Area of bedroom is x². Area of carpet needed for living room increased by 9x. Thus, area of carpet needed for living room = x² + 9x

7 0
2 years ago
You went to the department store for back to school shopping in picked out six shirts and four pairs of pants with the total wor
aleksklad [387]

x is shirt y is pants 6x+4y=170. 170-6.3-4.5=132

3 0
3 years ago
Tom has a large photo he wants to shrink to wallet-sized. It's width is 20 centimeters and it's len is 30 centimeters. If he wan
dsp73
We can use ratios, in other words, if one part of the photo is changed x times, how many times does the other part change?

We can set up the proportion as :
width 1 : length 1 = width 2 : length 2

20 : 30 = 5 : x

We do inverse multiplication, or multiply the outer with outer and inner with inner (W1 * L2 and L1 * W2)

20*x = 30*5
20x = 150
Divide all by 10
2x = 15
Divide all by 2 to isolate x
x = 15/2
x = 7.5cm
5 0
2 years ago
What is the result of dividing x³-4 by x+2​
Dmitry [639]

Answer: x2 - 2x + 4 - 12/(x + 2)

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Can anyone tell me the rules for rounding of digits? plz ASAP
    9·2 answers
  • I don't get what I'm spose to put on it also how do you work this app I'm new
    5·1 answer
  • The table below shows the height (in inches) and weight (in pounds) of eight basketball players.
    6·1 answer
  • 3/8 x 2/3 pls I really need this
    12·2 answers
  • Min makes a scale drawing of her rectangular garden using a scale of 1 to 25. Her garden measures 5 meters long by 3 meters wide
    11·1 answer
  • I don’t know what to put
    13·1 answer
  • Ayshays new bike has 26 inch diameter wheels. What is the circumference of her new wheel? Give your answer correct to 1 decimal
    9·1 answer
  • Find the value of x and y.
    7·2 answers
  • Help plz help ......​
    15·2 answers
  • 7
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!