3 years ago

Find the value of each variable that ensures that each equilateral is a parallelogram

Mathematics

1 answer:

puteri [66]3 years ago

8 0

Opposite sides are equal in a parallelogram.

$3a-12 = \frac{1}{2}a-7$

$\frac{5}{2}a = 5$

$a = 2$

You might be interested in

Equation P: y + z = 4

Eduardwww [97]

$y+z=4\\
3y+7z=15\\

-3y-3z=-12\\
3y+7z=-12\\
4z=-24\\
z=-6$

Multiply the top equation by -3 and added to the second one.

By Elimination.

4 0

3 years ago

There are 32 students in jadens class eating lunch.Then, more students join Jaden’s class. Now they are 86 total students Eating

Reptile [31]

The answer is
86-32=54

8 0

3 years ago

I’m giving out brainlest to whoever answers this correctly!

borishaifa [10]

Answer:

A. 18.2

Step-by-step explanation:

b^2 + 14^2 = 23^2

b = sqrt(333) = 18.248

5 0

3 years ago

Write the difference and simplest form (5n-3)-(-2n+7) 100 points

alekssr [168]

Answer:

7n - 10

5n - 3 + 2n - 7

(distribute the negative sign throughout the equation) (then just combine like terms)

7 0

3 years ago

Mal always solve the equation of negative 5 x minus 16 equals 8, his work is shown below identify the era where it was made step

Digiron [165]

Given:

The equation is

$-5x-16=8$

To find:

The error and correct solution.

Solution:

We have,

$-5x-16=8$

Add 16 on both sides.

$-5x-16+16=8+16$

$-5x=24$

Divide both sides by -5.

$\dfrac{-5x}{-5}=\dfrac{24}{-5}$

$x=-\dfrac{24}{5}$

Third step is incorrect because he divide the equation by 5 instead of -5.

Therefore, the correct solution is $x=-\dfrac{24}{5}$ .

3 0

3 years ago