Question

Pre-Algebra help!! Solving Inequalities

Answer 1

2/3a is less than equal to 2

Answer 2

solve for a

Answer 3

and can you please explain how you get the answer cause im confused

Answer 4

2/3a <= 2 -- divide both sides by 2/3
a <= 2/(2/3)
a <= 2 * 3/2
a <= 6/2 = 3

or, if you do not want to mess with fractions..
2/3a <= 2 (multiply the entire inequality by the LCD, which is 3)
2a <= 6 (divide by 2)
a <= 3

Answer 5

Do you have options to chose from, if so, lol i believe it could be a < = 3

Answer 6

thats the answer I got too

Answer 7

thank you!!

Answer 8

help me with one more?

Answer 9

no problem...do you have any questions ?

Answer 10

-5a is less than equal to -15

Answer 11

I'd explain the process but @kelliegirl33 explained very clearly xD

Answer 12

and i love the way you explained the first one helped me out a lot!! Now i know how to do fractions

Answer 13

-5a <= -15 (divide both sides by -5...but REMEMBER this rule...when dividing/multiplying by a negative, the sign changes)
a >= -15/-5
a >= 3

Answer 14

is it greater than equal to 3? cause thats what i got

Answer 15

yes..it is >= 3

Answer 16

Fractions are a bit different from inequalities.

Answer 17

:) thx @kelliegirl33 *becomes fan*

Answer 18

:)

Answer 19

my computer wont let me become a fan at the moment :(

Answer 20

thats ok....you can fan me later, if you want to :)

Answer 21

4x + 6(x-10) > 20 can you help with this one? why are there 2 variables?

Answer 22

there may be 2 variables, but they are the same variable...
4x + 6(x - 10) > 20 -- distribute through the parenthesis
4x + 6x - 60 > 20 -- add 60 to both sides
4x + 6x > 20 + 60 -- combine like terms
10x > 80 -- divide both sides by 10
x > 80/10
x > 8

Answer 23

Oh okay now I understand!! You should be a mod or ambi!! :)

Answer 24

I do not want the responsibility of that job...I am happy just answering questions :)

Answer 25

do you have any more that you need help with ?

Answer 26

^ Nice werk xD lol

Answer 27

thank you :)

Answer 28

I'll mention you if I need any more help on my homework

Answer 29

@kelliegirl33 The face of a tent is shaped like a triangle with an area of 21ft2. The area of the triangle is represented by the formula A equals one half b times h. The height of the tent is 6 feet. How wide is the base of the tent?

Answer 30

I can solve it I just need help writing the equation

Answer 31

A = 1/2bh
A = 21
h = 6
now we sub
A = 1/2bh
21 = 1/2(b)(6)
21 = 3b -- now divide by 3
21/3 = b
7 = b

check...
A = 1/2bh
21 = 1/2(7)(6)
21 = 1/2(42)
21 = 42/2
21 = 21 (correct)

b = 7

Answer 32

oh thanks but all I wanted was the formula the solve for the base!! But thanks for the help!! <3

Answer 33

anytime :)

Answer 34

@kelliegirl33 did I do this right?
3z+6(z+1)<-3
z=-1

Answer 35

help with 3 more equations?

Answer 36

3z + 6(z + 1) <, except do not put =-3 -- distribute through the parenthesis
3z + 6z + 6 < -3 (subtract 6)
3z + 6z < -3 - 6 (combine like terms)
9z < -9
z < -1
you are correct, except do not put =, put < ....good job

Answer 37

4z-z+2>5

6(z+1)<12

-5z+8<10-3z

Answer 38

4z - z + 2 > 5
4z - z > 5 - 2
3z > 3
z > 1

6(z + 1) < 12
6z + 6 < 12
6z < 12 - 6
6z < 6
z < 1

-5z + 8 < 10 - 3z
-5z + 3z < 10 - 8
-2z < 2 (dividing by a negative, change the sign)
z > -1

Answer 39

thx @kelliegirl33

Answer 40

no problem :)

Answer 41

@kelliegirl33 what is a literal equation?