Question

Solve for r: |5r-18|=0
3.6
(3.6, -3.6)
No solution

Answer 1

|5r-18|=0
5r = 18
r = 18/5

3.6

Answer 2

just only 3.6

Answer 3

Thankss!

Answer 4

you are welcome :)

Answer 5

I have like 7 questions left that I don't know how to do :(

Answer 6

post on message :)

Answer 7

The formula for the perimeter of a rectangle is P = 2l + 2w. If P = 104 and l = 13, what is the length of w?

Answer:
Put P = 104 and l = 13 into P = 2l + 2w

P = 2l + 2w
(104) = 2*(13) + 2W
104 = 26 + 2W
104 - 26 = 2W
78 = 2W
2W = 78
W = 78/2
W =39

Answer 8

@blondey_315 here

Answer 9

ohh okayy

Answer 10

what else?

Answer 11

Solve for b. (2b/4)+(b/3)
12
10
8
5

Answer 12

\[\frac{ 2b }{ 4 } + \frac{ b }{ 3 } = \frac{ (3 \times 2b) + (4 \times b) }{ 12 } = \frac{ 6b + 4b }{ 12 } = \frac{ 10b }{ 12 }\]

Answer 13

is in the questions (2b/4)+(b/3) = 0 ?

Answer 14

or ?

Answer 15

is what in the question?

Answer 16

would you show me the original text of that question?

Answer 17

(2b/4)+(b/3) = X

to find the value of b, we need to know what X is. We can't find b if it's only (2b/4)+(b/3)is known

Answer 18

@blondey_315 are you still here?

Answer 19

yup

Answer 20

hmm.., i don't know for this, let's go to the next question

Answer 21

wait it equals 10

Answer 22

(2b/4)+(b/3)=10, i think i put 0 last time i dont know would having 10 at the end help at all?

Answer 23

@blondey_315

Answer 24

huh?

Answer 25

huh? @gerryliyana

Answer 26

ok let we check

Answer 27

\[\frac{ 2b }{ 4 } + \frac{ b }{ 3 } = 10\]
\[\frac{ (3 \times 2b) + (4 \times b) }{ 12 } = 10\]
\[\frac{ 6b + 4b }{ 12 } = 10\]
\[\frac{ 10b }{ 12 } = 10\]
\[10 b = 10 \times 12 = 120\]
\[b = \frac{ 120 }{ 10 }\]
\[b = 12\]

Answer 28

@blondey_315 it's done

Answer 29

Yus that makes sense!

Answer 30

im sending it to you in DM so i can paste @gerryliyana

Answer 31

ok

Answer 32

First
4n + 3 = 11
4n = 11-3 = 8
n = 8/4 = 2

Second
4(1 + n) = -4
4 + 4n = -4
4n = -4 -4
4n = -8
n = -8/4
n = - 2

Third
5 = 3n - 1
5 + 1 = 3n
6 = 3n
n = 6/3
n = 2

4th
5(n + 1) = 2
5n + 5 = 2
5n = 2-5
5n = -3
n = -3/5

Answer 33

the second equation has a solution of -2

Answer 34

@blondey_315 get it?

Answer 35

yup i was looking it over it makes sense now thanks!

Answer 36

Solve |2y - 2| = 15
8.5
-13
8.5 and -6.5
17 and -13

Answer 37

you are welcome :)

Answer 38

Yay it let me paste~

Answer 39

|2y - 2| = 15
(|2y - 2|)^2 = 15^2
2y - 2 = + - sqrt(15^2)
2y - 2 = + - 15

So

2y - 2 = 15
2y = 15+2 = 17
y = 17/2
y = 8.5

or

2y - 2 = -15
2y = -15+2
2y = -13
y = -13/2
y = -6.5

So the answer are y = 8.5 and y = -6.5

Answer 40

ohhhhhh alright so if its in I I like that i square it?

Answer 41

yes

Answer 42

ohhhhh i see!

Answer 43

\[|2y - 2| = 15\]

\[(|2y - 2|)^2 = 15^2\]
\[2y - 2 = \pm 15\]

Answer 44

you you will have 2 solutions

Answer 45

The formula for the volume of a rectangular box is V = LWH. If V = 200, L= 12.5, and W = 8, find the height of the box, to the nearest whole unit.
1
2
3
4

Answer 46

using + or -

Answer 47

ohhh now i know and feel so stupid for not knowing before!

Answer 48

Thats the last question by the way!

Answer 49

I finished the test and got a 88 thanks! i wouldnt have gotten such a good grade with out your help!! :)

Answer 50

V = LWH.

If V = 200, L= 12.5, and W = 8
V = LWH.
200 = (12.5)*(8)*(H)
H = 200/100
H = 2

the height of the box is 2.

Answer 51

Congratulations!! :)
Good job, @blondey_315 :)