Question

The interest that Cindy earns on her investment is given by the equation l = 42t where t is the time in years that her money is invested. She makes a table to determine how much money she would earn for different values of t. She selects 5 as a value for t.



What is the corresponding table entry for l?









A.

8.4








B.

425








C.

210








D.

420

Answer 1

just sub in 5 for t and what do you get ?

Answer 2

C.

Answer 3

I = 42t
I = 42(5)
I = 210
you are correct :)

Answer 4

:D I have a few more questions though

Answer 5

lets see them

Answer 6

brb got to go for a sec

Answer 7

back lol

Answer 8

The interest that Paula earns on her investment is given by the equation l = 36t where t is the time in years that her money is invested. She makes a table to determine how much money she would earn for different values of t. She selects 12 as a value for t.



What is the corresponding table entry for l?









A.

3








B.

3612








C.

432








D.

48

Answer 9

that was fast

Answer 10

I thought I posted the message when I left and when I came back I realized I never sent it lol

Answer 11

sub in 12 for t

Answer 12

thought so.

Answer 13

gtg brb

Answer 14

I = 36t
I = 36(12)
I = you can do this

Answer 15

I got the nswer @texaschic101 :D thx I have another queston though

Answer 16

Which is an equation of the given line in standard form?









A.

–7x + 6y =–11








B.

–6x + 7y = 11








C.

–6x + 5y = 13








D.

–6x +7y =–11

Answer 17

u there?

Answer 18

(1/2, 2) x1 = 1/2 and y1 = 2
(-3,-1) x2 = -3 and y2 = -1
slope(m) = (y2 - y1) / (x2 - x1)
slope(m) = (-1-2) / (-3- 0.5)
slope(m) = -3/-3.5
slope(m) = 3/3.5

y = mx + b
m = 3/3.5
(-3,-1) x = -3 and y = -1
-1 = 3/3.5(-3) + b
-1 = -9/3.5 + b
-1 + 9/3.5 = b
-3.5/3.5 + 9/3.5 = b
5.5 = b

y = 3.5x + 5.5 (multiply by 10)
10y = 35x + 55
-35x + 10y = 55 (reduce)
-7x + 2y = 11

crap...I can't figure out how they are getting 6

Let me try something else....hold on

Answer 19

Ok

Answer 20

thx

Answer 21

U THERE?

Answer 22

sorry caps

Answer 23

-6x + 7y = 11
7y = 6x + 11
y = 6/7x + 11/7
y intercept = 11/7 or 1 4/11
x intercept =
-6x + 7(0) = 11
-6x = 11
x = - 11/6 or - 1 5/6

Its gonna be this one...answer is B

sorry it took so long...I couldn't seem to get my answer to match your answer choices...I finally figured it out

Answer 24

ohhhh now I get it thx u r awesome :D, last question

Answer 25

Which is the equation of the given line?









A.

y = –2








B.

x = –2








C.

x = 2








D.

y = –2x

Answer 26

you got a horizontal line....its gonna be y = -2

Answer 27

thx!

Answer 28

was a little faster on this one...lol

Answer 29

yea XD

Answer 30

sorry I got one more it turns out plz! @texaschic101

Answer 31

nvm

Answer 32

http://www.mathpapa.com/algebra-calculator.html ,check here too