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
ella [17]
3 years ago
9

Please help very urgent on test...

Mathematics
1 answer:
stepladder [879]3 years ago
8 0

Answer:

Equation: (2x+5)4=(2x+8)3

X: 2

Perimeter: 36

Step-by-step explanation:

You would multiply 2x+5 and 4 because there are four sides to a square, so the perimeter of the square would be 8x+20. This would go same for the triangle, making the perimeter 6x+24.

So 8x+20=6x+24 is your new equation. Then, you do the opposite of the order of operations, and add or subtract first. It would be easiest to subtract 20 and 6x from both sides.

That leaves you with 2x=4. Dividing 2 by both sides means x=2

You can plug this in to prove if it is correct.

16+20=36

12+24=36

Lmk if you get it!

You might be interested in
For the polynomial below, find F(-3)<br><br> F(-3)= -4x^2+3x-1
Elodia [21]
f(-3)=-4\cdot(-3)^2+3\cdot(-3)-1=-4\cdot9-9-1=-36-10=-46
4 0
3 years ago
Two number differ by 3 The sum of their reciporcal is 7/10 find tge numbers
motikmotik
The numbers are 5 and 2.

Reciprocals: 5- 5/10
                     2- 2/10
(2/10)+(5/10)= 7/10
5-2= 3
 
Answer: 5 and 2
6 0
3 years ago
Read 2 more answers
What are the solutions to the equations |x-10|-4=2x
Tamiku [17]
X is going to equal two in this equation.
7 0
3 years ago
Y = -x^2 + 4x<br><br> quadratic formula
marin [14]

Answer:

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Down

Vertex:  

( 2 , 4 )

Focus:  

( 2 , 15 /4 )

Axis of Symmetry:  

x = 2

Directrix:  

y = 17 /4

x              y

0             0

1              3

2             4

3             3

4             0

To find the x-intercept, substitute in  

0  for  y  and solve for  x . To find the y-intercept, substitute in  0  for  x  and solve for  y .

x-intercept(s):  ( 0 , 0 ) , ( − 4 , 0 )

y-intercept(s):  ( 0 , 0 )

Step-by-step explanation:

4 0
3 years ago
Pebble run 3 miles in 25 minutes at the same rate how many miles would he run in 20 minutes​
Elanso [62]
The answer 2.4 miles because 60/25 = x = 2.4mi
3 0
3 years ago
Other questions:
  • Solve for x -x + 2 = 4
    11·2 answers
  • Can someone help me plz?
    14·1 answer
  • The miles-per-gallon obtained by the 1995 model Z cars is normally distributed with a mean of 22 miles-per-gallon and a standard
    8·1 answer
  • Solve.<br> y =-2x + 9<br> y =4x-3
    5·1 answer
  • Very easy! 15 points!
    5·1 answer
  • Ffff ffffffffffffffffffffffffffffffffffffffffffff fff
    9·2 answers
  • Find slope of -2,3 and 4,-5
    12·1 answer
  • Which angle is an adjacent interior angle? <br><br> a. 1<br> b. 2<br> c. 3<br> d. 4
    12·1 answer
  • What is the range of the function in the graph?
    6·1 answer
  • Find the sum of 3x² + 5x - 1 and x² - 2x -7​​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!