Question

Meg is 6 years older than Victor. Meg's age is 2 years less than five times Victor's age. The equations below model the relationship between Meg's age (m) and Victor's age (v):

m = v + 6
m = 5v − 2

Which is a possible correct method to find Meg's and Victor's ages?

a. Solve m + 6 = 5m − 2 to find the value of m.
b. Write the points where the graphs of the equations intersect the x axis.
c. Solve v + 6 = 5v − 2 to find the value of v.
d. Write the points where the graphs of the equations intersect the y axis.

Answer 1

i had that question!!

Answer 2

You did?

Answer 3

yea

Answer 4

Can you help me?

Answer 5

sure hold on

Answer 6

Ok. Thanks so much.

Answer 7

Are you still there?

Answer 8

yeah

Answer 9

ok

Answer 10

b

Answer 11

B is the answer

Answer 12

ok

Answer 13

Can you explain why for me? I would like to understand

Answer 14

hi jhonyy9

Answer 15

sure

Answer 16

thanks

Answer 17

did you do flvs when you had this question?

Answer 18

what does fvl means?

Answer 19

florida virtual school

Answer 20

yes except that i am in pensylvania

Answer 21

lol ok

Answer 22

and the answer is actually C

Answer 23

what result you will get for v and m ?

Answer 24

ok. May you explain please?

Answer 25

I don't understand the question. That's why I found this website and so yeah.

Answer 26

cause if we know victors age it would be easy to find megs

Answer 27

@jerey45 above you have said B. - why ?

Answer 28

ok. but the problem is kind of confusing because the part that says "Meg's age is 2 years less than five times Victor's age." is what I mostly don't understand

Answer 29

you guys. I need like an actual explanation, not to be rude @jerey45 but I want to understand why the answer would be c. Also how would i solve those equations?

Answer 30

anybody still there?

Answer 31

try to solve C. for v - ok. ?

Answer 32

ok.

Answer 33

so you want me to solve v?

Answer 34

yes

Answer 35

ok.

Answer 36

I think 2?

Answer 37

right so than you know that v=2 and you know again that m=v+6 so than m= ?

Answer 38

let me solve it really quick.

Answer 39

m=8?

Answer 40

yup

Answer 41

yes sure so than v=2 and m=8

Answer 42

ok.

Answer 43

thank you so much guys. I figured out how to medal and i will medal you guys

Answer 44

@SenpaiMax do you understand it now ?

Answer 45

yes

Answer 46

i will fan and medal :D

Answer 47

I fan you @jerey45 i didn't know that you can only do one best response. can you help me with another question?

Answer 48

yeah i'll do my best

Answer 49

ok thxs

Answer 50

sure

Answer 51

A pair of equations is shown below:

y = 8x − 9
y = 4x − 1

Part A: Explain how you will solve the pair of equations by substitution or elimination. Show all the steps and write the solution. (5 points)

Part B: If the two equations are graphed, at what point will the lines representing the two equations intersect? Explain your answer. (5 points)

Answer 52

ummm..... let me think one minute

Answer 53

ok

Answer 54

I mostly want to know how to solve those equations

Answer 55

@SenpaiMax so do you know what mean substitution or elimination method ?

Answer 56

no

Answer 57

May you explain what that is?

Answer 58

y=8x-9
y=4x-1

- substitution method is when the value of y from first equation so in this case you will substitute in place of y inside second equation and will calculi easy the value of x - ok ?

Answer 59

it is like replacing something

Answer 60

ok. I kind of get it

Answer 61

- elimination method so for eliminate adding same terms of these equations you need multiplie first or second by -1 and assume the same terms so one will be eliminated and solve for second

Answer 62

ok

Answer 63

what do I do then?

Answer 64

what method you wan us here now ?

Answer 65

maybe substituion?

Answer 66

ok. so than replace the first value of y in place of y inside second equation and calculi x

Answer 67

what do you mean by that?

Answer 68

can you give me an example please?

Answer 69

so there is

y = kkkkk
y = pppp

so just replace kkkkk in place of y inside second equation - how you make it ?

Answer 70

so will be

kkkkk= pppp

yes ?

Answer 71

oh ok. i understand. so for my question, what would i do. Do i just put 8x - 9 = 4x -1?

Answer 72

is that it?

Answer 73

yes - sure - this is easy

Answer 74

Ok. Thanks. so i how would i show my work. this math is a bit confusing to em

Answer 75

wait --- so than calculi the value of x

Answer 76

what do you mean by calculi?

Answer 77

8x-9 = 4x-1
8x-4x= -1+9

can you continue ?

Answer 78

how did you do that?

Answer 79

(8-4)x = 9-1

Answer 80

so it would be 4x = 8?

Answer 81

yes and divide both sides by 4 and what will get for x= ?

Answer 82

so pretty much what you did was group the variable x with the other one? and x=2?

Answer 83

yes sure x=2 is right
so now you need calculi y=?

Answer 84

how would you do that?

Answer 85

i know how to solve for the x now, but y?

Answer 86

y=4x-1 but you know that x=2 so than
y= 4*2 -1 = ?

Answer 87

oh ok. y =7?

Answer 88

yes and finish

Answer 89

ok. thanks. what about part b?

Answer 90

do you understand it now how solve same system ?

Answer 91

i understand this now and about substitute and elimination

Answer 92

i get the graphing now. (x,y) would be (2,7)?

Answer 93

right?

Answer 94

yes - right ,this is the answer to part b.

Answer 95

ok. thanks so much @jhonyy9

Answer 96

np

was my pleasure

good luck

Answer 97

thxs. have a nice day/night