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3 years ago

a rectangle has a length of (x +6) feet and width of (x-2) feet. has a area of 48 feet squared, find the dimensions

Mathematics

1 answer:

Shalnov [3]3 years ago

4 0

(x^2)+4x-12=48

I Hope this is what you were looking for. If it isn't this just plug it in

x=6

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What is the solution of the system?

Kryger [21]

Greetings!

Solve the System, using Elimination:
$\left \{ {{4x+2y=18} \atop {2x+3y=15}} \right.$

Multiply Equation #2 by 2:
$\left \{ {{4x+2y=18} \atop {2(2x+3y)=2(15)}} \right.$

$\left \{ {{4x+2y=18} \atop {4x+6y=30}} \right.$

Eliminate variable x:
$-\frac{ \left \{ {{4x+2y=18} \atop {4x+6y=30}} \right.}{0x-4y=-12}$

$4y=-12$

Divide both sides by 4:
$\frac{4y}{4}= \frac{12}{4}$

$y=3$

Input this value into one of the Equations:
$4x+2y=18$

$4x+2(3)=18$

Simplify:
$4x+6=18$

$(4x+6)+(-6)=(18)+(-6)$

$4x=12$

Divide both sides by 4.
$\frac{4x}{4}= \frac{12}{4}$

$x=3$

The Solution to this System (The Point of Intersection):
$\boxed{(3,3)}$

I hope this helped!
-Benjamin

7 0

3 years ago

8/5 of 3/7 is.......

EastWind [94]

Answer:

8/5×3/7=

8 × 3

5 × 7

= 24/35

Step-by-step explanation:

24/35

7 0

2 years ago

-12x+ 16 = 100<br> what is the value for x in this equation?

AveGali [126]

Answer: X= -7

Step-by-step explanation: A negative time a negative is a positive so -12x-7 is equal to 84. 84 plus 16 is equal too 100.

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3 years ago

Study quadrilateral ABCD. Which graph of ABCD shows the reflection of quadrilateral ABCD across the line y=x

algol13

Answer:

graph C

Step-by-step explanation:

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3 years ago

Find each percentage of 75. Explain your reasoning.

Furkat [3]

10% of 75 is 7.5
1% of 75 is .75
.1% of 75 is .075
.5 of 75 is .375

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3 years ago