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Tom [10]
2 years ago
13

The lengths of sides of a triangle are (3x+2), (2x+5), and 4x. Terrel correctly added the lengths of the three sides to find the

perimeter. What expression did Terrel write for perimeter?
Mathematics
2 answers:
Charra [1.4K]2 years ago
7 0
So permiter=masure of all sides added together
so sides are(3x+2), (2x+5), and (4x)
so (3x+2)+(2x+5)+(4x)
use associative property
a+(b+c)=(a+b)+c so

(3x+2)+(2x+5)+(4x)=3x+2+2x+5+4x
group like terms becasue can move numbers around
(3x+2x+4x)+(2+5)
add like terms
(9x)+(7)
9x+7
he will use 9x+7=perimiter





Irina18 [472]2 years ago
6 0
(3x+2) + (2x+5) + 4x = 5x + 7 + 4x = 9x + 7

Teri wrote the expression 9x + 7 for perimeter.
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How to reduce (simplify) ordinary fraction 8/21? Fraction can't be reduced (simplified). 8/21 = 0.380952380952; Result written as a positive proper fraction and a decimal number. Ordinary (simple, common) math fraction reducing to lowest terms (simplifying), answer with explanations below
4 0
3 years ago
What is the surface area of this?
olchik [2.2K]
Find the area of two sides (Length*Height)*2 sides.
Find the area of adjacent sides (Width*Height)*2 sides.
Find the area of ends (Length*Width)*2 ends.
Add the three areas together to find the surface area.
Example: The surface area of a rectangular prism 5 cm long, 3 cm. Hope this helps?!
6 0
3 years ago
X/3 +2y/3= -1 and x-y/3=9 solve. by elimination method​
Galina-37 [17]

Answer:

X=51/7, Y= -36/7

Step-by-step explanation:

X/3 + 2y/3 = -1 equ 1

X - y/3 = 9 equ 2

eliminate X/3.

X/3 + 2y/3 = -1..... x 1 ( co-efficient of X in equ2 )

X - y/3 = 9 ...... x 1/3 ( co-efficient of X in equ1 )

X/3 + 2y/3 = - 1 equ 3

-

X/3 - y/9 = 3 equ 4

0 + 7y/9 = -4

y = -36/7

( input the value of y into equ 4 )

X/3 -y/9 = 3

X/3 - (-36/7)/9 = 3

X/3 + 36/63 = 3

X/3 = 3 - 36/63

X/3 = 153/63

63X = 459

X = 459/63

X = 51/7.

8 0
3 years ago
A bicycle that usually sells for $230 is on sale for 25% off. What is the sale price?
zloy xaker [14]
The answer is $57.50.

Explanation:
To find the discounted price of an item, you multiply the original sell price of the item by a decimal version of the percentage. So in this case you would multiply .25 by 230 to get 57.5 or $57.50.

I hope I helped and good luck!
5 0
3 years ago
Read 2 more answers
What is the equation, in slope-intercept form, of the line parallel to y = 5x +2 that passes through the point with coordinates
DaniilM [7]

Answer:

<em>Slope - intercept form  y = 5x+17</em>

<em>The equation of the parallel line to the given line is 5x-y +17=0</em>

Step-by-step explanation:

<u><em>Explanation</em></u>

The equation of the straight line is y= 5x+2

                                          5x - y +2=0

The equation of the straight line is 5x-y+2=0

Given that the point(-3,2)

The equation of the parallel line to the given line is

                              5x -y +k=0

                              5(-3) - 2+k=0

                              -15 -2 +k =0

                               -17 +k=0

                                     k =17

The equation of the parallel line to the given line is 5x-y +17=0

<u><em>Final answer:-</em></u>

<em>Slope - intercept form  y = mx+c</em>

<em>Slope - intercept form  y = 5x+17</em>

6 0
3 years ago
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