Question

Solve the system

y=2.6x−3.4

−1.6x+0.4y=−0.8

Answer 1

well it is easier to use substitution in this occasion?
do you know how?

Answer 2

i do

Answer 3

do i just plug the y equation (1st equation into the second?

Answer 4

can you solve now?

Answer 5

yes:)

Answer 6

ok :)

Answer 7

THANK U SOO MUCH

Answer 8

ur welcome :)

Answer 9

DID U SOLVE THIS ONE?

Answer 10

I WAN TO COMPARE ANSWERS

Answer 11

ok so i got x=-1

Answer 12

and y=-6

Answer 13

what did you get?

Answer 14

I GOT DECIMALS. (0.8, -1.32)

Answer 15

really how?

Answer 16

ILL SHOW YOU

1.6X+0.4(2.6X-3.4)=0.8
1.6+1.04X-1.36=0.8
2.64X-1.36=0.8
+1.36 +1.36
2.64X=2.16
2.64X= 2.64
X= 0.81

Answer 17

and these you got were wrong, right?

Answer 18

were mine wrong?

Answer 19

YOURS WERE CORRECT

Answer 20

I DONT KNOW WHAT IM DOING WRONG

Answer 21

ok wait up, let me check :)

Answer 22

KK

Answer 23

oh i see , so this is ur equation right?
1.6X+0.4(2.6X-3.4)=0.8

Answer 24

ur setup ^^^ right?

Answer 25

?

Answer 26

YES. -0.8

Answer 27

i believe you missed the -0.8 at the end after the =
you put = 0.8
but its supposed to be = -0.8

Answer 28

0K

Answer 29

can you solve and then tell me what you get then?

Answer 30

0.56/2.64=0.21 :(

Answer 31

I DONT GET A NEGATIVE AT ALL

Answer 32

ok sorry but its supposed to be:
-1.6X+0.4(2.6X-3.4)=-0.8

you just made a simple mistake of missing the negative in front of -1.6 and -0.8

Answer 33

ok can you solve now:
-1.6X+0.4(2.6X-3.4)=-0.8

try it i guarantee you, that you will get the correct answer now :)

Answer 34

OK:)

Answer 35

I GOT -6

Answer 36

THANK YOU!!!!!! FOR BEING SO PATIENT

Answer 37

The Bread Alone Bakery has a daily overhead of $90. It costs $0.60 to bake each loaf of bread, and the bread sells for $1.50 per loaf.

a. Write an equation for the cost, C, in terms of the number of loaves, x.
b. write an equation for the revenue R

Answer 38

can u help me with this one ?