Question

HAAAAAAAAAAAAAAAAAA last math

Answer 1

@dude

Answer 2

@dude

Answer 3

\(x+y=10\\
0.05x+0.25y=0.1(10)\)

Answer 4

?

Answer 5

Those are your equations

Answer 6

oh

Answer 7

x+y=10
Amount of liters for each

Answer 8

ohhh

Answer 9

\(0.05x+0.25y=0.1(10)\)

The % of each needs to be

Answer 10

10%?

Answer 11

I am just explaining the equations

Answer 12

oh

Answer 13

Yeah, now solve for x and y

Answer 14

._.

Answer 15

\(x+y=10\\
0.05x+0.25y=0.1(10)\)
Multiply one equation by -0.05

\(\color{red}{-0.05(}x+y=10\color {red}{)}\\
0.05x+0.25y=0.1(10)\)

=>
\(-0.05x-0.05y=0.5\\
0.05x+0.25y=1\)
Add

\(0.20y=1.5\)
Divide by 0.20
\(y=7.5\)

Answer 16

x=2.5

Answer 17

Substitute into one of the equations
\(x+7.5=10\\
x=2.5\)

Answer 18

Yes

Answer 19

92% ;o

Answer 20

oh.

Answer 21

oof
you mixed up the x and y

Answer 22

*deskpalm*

Answer 23

ets still an A

Answer 24

Sure I guess

Answer 25

took me a while to get to it, but yeah... I was gonna say that the y and x got mixed up

0.05x + 0.25y = 0.1
is the equation, not 0.1(10)
which is what went wrong

Answer 26

as for explaining why you set it up the way you do:

(percent)*(amount) + (percent)*(amount) = (ending percent)

for example,
(0.05 of a dollar)*(4 nickles) + (0.25 of a dollar)*(2 quarters) = (0.7 of a dollar)

Answer 27

Thanks Angle x.x