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Otrada [13]
2 years ago
8

Pls help

Mathematics
1 answer:
BlackZzzverrR [31]2 years ago
8 0

Answer:

y =  8 \:  \:  \: x =  - 10

Step-by-step explanation:

4( - 6x - 9y =  - 12) \\ 3(8x + 9y =  - 8) \\  \:  \:  \:  \:  \:  \:  \\  - 24x - 36y =  - 48 \\ 24x + 27y =  - 24 \\  \\  - 9y =  - 72 \\ y = 8 \\  \\  \\  \\  \\  - 6x  -  9y=  - 12 \\  - 6x  -  72 = -  12 \\  - 6x =  - 12 + 72 \\  - 6x = 60 \\ x =  - 10

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Please help!!! 30 minutes left
NeX [460]

Answer:

Option "D" is correct.

Step-by-step explanation:

\frac{a^{3}b^{-2} }{ab^{-4} }

To eliminate negatives

They are interchanged thus it gives us option D.

7 0
2 years ago
You want to buy new pair of Air Jordans but you don’t have the money for them you borrow 130 from your sister to buy the shoes t
Firlakuza [10]

You do not have enough money to pay your sister back and the amount left is $29

<h3>A. Do you have enough money to pay your sister back? </h3>

The given parameters are:

Amount borrowed = $130

Earnings = $12 per hour for 4 hours

Earnings = $12 per hour for 6 hours

Tip = $5

The total earnings is

Total = 12 * 4 + 12 * 4 + 5

Evaluate

Total = $101

101 is less than 130

Hence, you do not have enough money to pay your sister back

<h3>How much money left</h3>

The amount left is calculated as:

Amount left = $130 - $101

Evaluate

Amount left = $29

Hence, the amount left is $29

Read more about equations at:

brainly.com/question/2972832

#SPJ1

7 0
2 years ago
Can u answer this???????????????
NeTakaya
8.9   really hope this helps little bro
6 0
3 years ago
You have one type of candy that sells for $1.70/lb and another type of candy that sells for $3.40/lb. You would like to have 8.5
Andrew [12]

Answer: You will need 3.5lbs of the cheaper candy

and 5 lbs of the expensive candy.

Step-by-step explanation:

Let x represent the number of pounds of the cheaper candy that you would need.

Let y represent the number of pounds of the expensive candy that you would need.

You would like to have 8.5 lbs of a candy mixture. It means that

x + y = 8.5

You have one type of candy that sells for $1.70/lb and another type of candy that sells for $3.40/lb. The candy mixture would sell for $2.70/lb. It means that the total cost of the mixture would be 8.5 × 2.7 = $22.95. The expression would be

1.7x + 3.4y = 22.95- - - - - - - - - - - 1

Substituting x = 8.5 - y into equation 1, it becomes

1.7(8.5 - y) + 3.4y = 22.95

14.45 - 1.7y + 3.4y = 22.95

- 1.7y + 3.4y = 22.95 - 14.45

1.7y = 8.5

y = 8.5/1.7

y = 5

x = 8.5 - y = 8.5 - 5

x = 3.5

5 0
2 years ago
The large rectangle below represents one whole. A large rectangle with 25 equal sections, 11 of which are shaded What percent is
MrMuchimi

Answer:

44%

Step-by-step explanation:

25 equal section represented the total area

11 out of 25 sections are shaded

Percentage shaded will be \frac {11}{25}\times 100%

Percentage shaded will be 0.44\times 100%=44%

Therefore, shaded area represented 44%

3 0
2 years ago
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