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
swat32
3 years ago
6

The width of a rectangle is the length minus 3 units. The area of the rectangle is 10

Mathematics
1 answer:
sergeinik [125]3 years ago
3 0

Answer:

w=2

Step-by-step explanation:

A=length times width (A=lw)

w= l-3

A=10

Substituting in, we get:

10= l(l-3)

Now, solve the equation.

10= l^{2}-3l

l^{2}-3l-10=0

(l+2) (l-5)=0 (factoring the equation)

Therefore, l= -2 or 5

Throw out the negative value because a length of rectangle will never be negative.

Now let's solve for width

Remember w=l-3

therefore

(5)-3=2

so, w=2

(honestly, this is easier to just do in your head. But here is the long form math if you happen to run into more complicated problems.)

You might be interested in
A comet is cruising through the solar system at a speed of 50,000 kilometers per hour 4 hours time . What is the total distance
Gekata [30.6K]

The answer is 200,000. The reason why is because 50000*4=200,000

6 0
3 years ago
Read 2 more answers
Need help on 6 and 7 asap! Will mark brainliest!!
MrMuchimi

I did number 6 to give you an idea of what you have to do. First find simplify the top and bottom and reduce!

Hope it helps! Comment if you have any questions!

3 0
3 years ago
Read 2 more answers
Which statements describe the functions? Check all
ruslelena [56]

Answer:

a,d,e

Step-by-step explanation:

edgenuity

6 0
3 years ago
Read 2 more answers
a fair sold a total of 3,300 tickets on Friday and Saturday. It sold 100 more on Friday than on Saturday. How many tickets did t
xz_007 [3.2K]
3200 is the answer thank you
6 0
3 years ago
Esteban has a big jar of change in his room. He has 600 coins total, and 240
elixir [45]
  You can set up a proportion to solve for the percentage of the coins that are pennies. Of course, there are alternate methods as well, but this is one method. First, you define the percentage of the coins that are pennies to be equal to a variable, such as x. Next, you write 240/600 = x/100, due to how "x" is the amount out of 100 (since per cent is for every cent (out of 100)), and 240 would correspond to x while 600 would correspond to 100. This proportion may also be written as 100/x = 600/240, or 240/x = 600/100. In order to solve for x, you use cross-products, or you multiply each denominator by the numerator of the other fraction. You will be left with a numerical value that's equal to a number times x, and then you divide both sides of the equation by the coefficient of x in order to isolate x. As a result, you will have the percentage of the coins that are pennies to be your answer. Remember to write the units for every numerator and denominator in your proportion.
8 0
2 years ago
Read 2 more answers
Other questions:
  • Amie published her first book. She was given $20,000 and an additional $0.15 for each copy that sold. Her earnings,d, in dollars
    6·2 answers
  • Can someone make this is right? Thanks!!
    5·2 answers
  • Whats the power point equation it 86.4
    13·1 answer
  • 7th grade help me pleasee
    7·2 answers
  • Please help with the question below please and thank you!!!!
    9·1 answer
  • Assume that a sample is used to estimate a population proportion p. Find the margin of error M.E. that corresponds to a sample o
    10·1 answer
  • Which function is graphed below? a) y=1/3(3)^x b) y=3(1/3)^x c) y=(1/2)^x+2 d) y=(2)^x-1
    14·1 answer
  • Please answer and explain I’ll mark brainliest!!!!!
    7·1 answer
  • Fasting for Amazon on the natural ​
    6·1 answer
  • Someone solve this for me pls ​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!