Question

Can someone please check my question/answer? Please?
Which values of x satisfy the inequality
–(7/3)[x+(9/28)]<20?
a. x < -8 25/28
b. x < -8 ¼
c. x > -8 25/28
d. x > -8 ¼

Answer 1

I think its d

Answer 2

Is that negative?

Answer 3

sir/ma'am?

Answer 4

–(7/3)[x+(9/28)]<20?

Answer 5

The beginning

Answer 6

Because if it is negative, I got C

Answer 7

@Ineedhelplz please step by step

Answer 8

7 9
- (---)( x + (---) ) < 20
3 28

@abbycross167 this is your exercise yes ?

Answer 9

yes sir

Answer 10

so like a first step i think will be right than you divide both sides by (-7/3)

do you can make it ?

Answer 11

i like teach you step by step - ok. ?

Answer 12

yes sir/ma'am

Answer 13

so than from the left side will be elimineted the fraction (-7/3 ) and on the right side what will get ?

Answer 14

I'm not sure,

Answer 15

like do I eliminate 20? is that what you meant?

Answer 16

no - from the left side will be eliminated the -7/3 fraction

on the right side you need dividing the 20 by (-7/3) how you make it ?

20
------ = ?
-7
( --- )
3

Answer 17

for more easy way you can rewrite it

(20/1)
------ = ?
(-7/3)

hope you know how divide two fractions - yes ?

Answer 18

-8 4/7?

Answer 19

multiplie first by invers of second

yes ?

Answer 20

try it please and see what will get

Answer 21

-7/3*20/1= -46 2/3
is that what you wanted me to do?

Answer 22

yes but like result will be more easy to continue your calculi than will get fractionaly form without integer part - ok. ?

Answer 23

so -140/3
ok.?

Answer 24

but this not is right i have said multiplie first fraction with second inversed

Answer 25

so will be 20/1 *(-3/7) = ?

Answer 26

so what will get ?

Answer 27

-8 4/7

Answer 28

-60/7 in the right side

(x+(9/28))<(-60/7)

Answer 29

x+9/28 = ? how you add them ?

Answer 30

what will be the common denominator ?

Answer 31

denominator common wil be 28 than multiplie the x by 28 and will get
(28x+9)/28 < (-60/7)

Answer 32

there are two fractions too so you need getting the denominator common for 28 and 7

what number will be the denominator common ?

Answer 33

are you here please ?

Answer 34

I'm sorry my Wifi messed up

Answer 35

for 28 and 7 the denominator common will be 28 because 7*4=28

so

28x+9 - 60
------ < -----
28 7

can you continue ?

Answer 36

with what number you need multiplie the right side than you know that the denominator common is 28 ?

Answer 37

by 28/7 = 4

than you multiplie the right side by 4 what wil get in numerator ?

Answer 38

4*(-60) = ?

Answer 39

-240

Answer 40

yes right

so now you can rewrite them witout denominator - so how will be ?

Answer 41

on the left side 28x+9 < ?

Answer 42

7?

Answer 43

why 7 when you have wrote above -240 for the right side ?

Answer 44

oh sorry i forgot...

Answer 45

than will get

28x+9 < - 240 can you solve it now for x ?

Answer 46

subtract from both sides 9 and will get ?

Answer 47

-230?

Answer 48

28x +9 -9 < - 240 -9 do you can continue it now ?

Answer 49

28+<-249

Answer 50

28x<-249 what will be the value of x ?

Answer 51

-8 25/28 ?

Answer 52

so this is just what will be on the right side but on the left side what will be ?

Answer 53

x<

yes ?

Answer 54

so than what will be the right choices from these ?

Answer 55

choice - sorry

Answer 56

d.
b.
a.
c.

what will be right ?

Answer 57

a?

Answer 58

are you sure ?

you have got this result sure ?

Answer 59

yes this is sure the right answer

hope you understand it all

so was my pleasure

good luck

bye

Answer 60

thank you very much for helping me, you're a great help!