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
Ivenika [448]
3 years ago
9

I need help pleace ​

Mathematics
1 answer:
Whitepunk [10]3 years ago
7 0

Answer

<em>length = width + 15</em>

<em>Area = length * width; area is 54 square feet.</em>

<em>Two equations are:</em>

<em>L = W + 15</em>

<em>L * W = 54</em>

<em>To solve, we substitute first equation into second equation:</em>

<em>(W + 15) * W = 54</em>

<em>w^2 + 15w = 54</em>

<em>w^2 + 15w - 54 = 0</em>

<em>(w+18)(w-3) = 0</em>

<em>w = -18 or 3</em>

<em>The width cannot be negative, so 3 is the width and since length is 15 more than width, length is 18:</em>

<em />

<em>Length = 18 feet</em>

<em>Width = 3 feet</em>

<em />

<em />

You might be interested in
Identify the property or rule 85+0=
frez [133]
IdentityProperty of Addition OR Zero Property
8 0
3 years ago
Read 2 more answers
If the diameter of a circle is 22.2, then the radius would be _____?
kumpel [21]

Answer:

11.1

Step-by-step explanation:

G o o g l e

4 0
3 years ago
Read 2 more answers
What does 1/4 + 3/4 + 9/8
Katena32 [7]

Answer:

the answer is 17/8

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the area of the triangle?<br> 12<br> 8
ExtremeBDS [4]

Answer:

48

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Solve the equation:<br><br> a) -3 = 7+2t/3<br><br> b) 4(5x-2) = 7(2x+3) <br><br> c) 2x-6 = 30-2.5x
Umnica [9.8K]
Let's start by solving the first equation.

a) -3 = 7 + 2t/3 
To begin simplifying this equation, we should multiply both sides by 3 to get rid of the denominator on the right side of the equation.
-9 = 7 + 2t
Next, we should subtract 7 from both sides to cancel out the 7 on the right side.
-16 = 2t
Finally, we should divide both sides by 2.
t= -8


Now let's move on to the next equation.

b) 4(5x-2) = 7(2x+3)
Let's use the distributive property to get rid of the parentheses and their coefficients.
20x-8 = 14x + 21

Now, lets subtract 14x from both sides of the equation.

6x - 8 = 21

Next, let's add 8 to both sides of the equation.

6x = 29

And divide both sides by the coefficient of x, which is 6.

x = 29/6 or 4 5/6

Now for the last equation.

C) 2x - 6 = 20 - 2.5x
First, we should add 2.5x to both sides to cancel out the -2.5x on the right side of the equation.
4.5x - 6 = 20
Now, let's add 6 to both sides to get the variable term alone.
4.5x = 26
Finally, we should divide both sides by 4.5 to get x by itself.
x = 5 7/9

Hope this helps! :)
7 0
3 years ago
Other questions:
  • Help! The elements of matrix C are shown below.
    8·1 answer
  • Let a be a non-zero rational number and b be an irrational number. Is a x b rational or irrational?
    8·1 answer
  • For the last 4.5 hours, the temperature has decreased at a rate of 2.8 degrees per hour. Which best represents the overall chang
    11·2 answers
  • After 4 years, what is the total amount of a compound interest investment of $20,000 at 2% interest, compounded monthly?
    13·1 answer
  • The mean life of a particular brand of light bulb is 1200 hours and the standard deviation is 50 hours. We can conclude that at
    7·1 answer
  • Out of 1,200 students surveyed, 92% of them like country music. How many students like rap music?
    7·2 answers
  • A 31-foot support wire is attached from the top of a 25 foot telephone pole to a point on the ground. How far from the base pole
    14·1 answer
  • MY LAST QUESTION!!!!!
    15·2 answers
  • What is the surface area of the given figure?
    13·1 answer
  • Convert 714.81 mm to meters. (please show the steps to how you did the problem.)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!