Solve:
-5⁄2 a + 5 = 25
a =

-8

Step-by-step explanation:

First, simplifying a little, we can subtract 5 from both sides to get rid of the +5 on the left side:

-5⁄2 a + 5 = 25 -> -5/2 a = 20

Now, getting rid of the fraction, let's multiply both sides by 2:

-5/2 a = 20 -> -5a = 40

Finally, dividing both sides by -5 will isolate a, giving us the

-5a = 40 -> a = -8

Edit: thanks for correction, sorry about that

a = -8

Step-by-step explanation:

-5⁄2 a + 5 = 25

Subtract 5 from each side

-5⁄2 a + 5-5 = 25-5

-5/2 a = 20

Multiply each side by -2/5

-2/5 * -5/2a = 20 * -2/5

a = -8

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

127

whether it's diameter, or radius, i believe if i remember correctly from school, every amount has to always add up to 180. so if you take 53, and starting adding, long story short, taking 127 and adding it to 53, gives you 180.