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julia-pushkina [17]
3 years ago
13

12 packs of skwunch apple juice cost $3.00 after a 40% discount. which equation would allow you to find the oringnal price of th

e 12 pack
Mathematics
2 answers:
andreev551 [17]3 years ago
8 0
0.6x=3 would be the equation
mixas84 [53]3 years ago
4 0
After 40% discount, it is selling at 60%
60% = 3.00
1% = 0.05
100% = 0.05 x 100 = $5.00

original price = $5.00
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Use the substitution and to rewrite the equations in the system in terms of the variables and . Solve the system in terms of u a
Tatiana [17]

Answer:

x = -1 and y = 1/2

Step-by-step explanation:

Let u = 1/x, and v = 1/y

Then the pair of equations

-3/x + 4/y = 11

1/x - 2/y = -5

Can be written as

-3u + 4v = 11 .................................(1)

u - 2v = -5......................................(2)

From (2)

u = 2v - 5 .......................................(3)

Substituting (3) into (1)

-3(2v - 5) + 4v = 11

-6v + 15 + 4v = 11

-6v + 4v = 11 - 15

-2v = -4

v = 4/2 = 2

Substituting this value of v in (3)

u = 2v - 5

u = 2(2) - 5

= 4 - 5

= -1

That is

u = -1, v = 2

Since u = 1/x, and v = 1/y, we have

1/x = -1

=> x = -1

And

1/y = 2

=> y = 1/2

Therefore

x = -1 and y = 1/2

4 0
3 years ago
6:
horrorfan [7]

Step-by-step explanation:

charging the phone for 1 minute ,it has 2%

i.e,1----->2

After 2 minutes from that time ,i.e total 3 minutes

it has 6% charge

i.e,3--------->6

from the both the above cases ,1 minute provide 2%=6/3

=2

Hence,

for getting 50%charge=50/2

=25 min

and,for 90 %charge=90\2

=45 min

8 0
2 years ago
DUDE THIS IS MY LAST QUESTION PLEASE HELP
Alborosie

Answer:

B

Step-by-step explanation:

3 x -3 is -9

-2 x 4 is -8

-9 x -8 is 72

7 0
3 years ago
Read 2 more answers
Omg someone pleaseeee help me!!! 30 points!!!
Crank

add the volume of a cone, V=1/3 pi times radius squared times h. The volume of the cone is V=355. Then you add the volume of the cone to the volume of the cylinder. the formula for the volume of a cylinder is V= pi times radius squared times h. So the volume of the cylinder will be V=923. if you add those two together the overall volume is 1,278.

8 0
3 years ago
140 equals the sum of k and 38
Mandarinka [93]

Answer:

102

Step-by-step explanation:

140-38=102

5 0
2 years ago
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