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DerKrebs [107]
2 years ago
6

How many solutions does this system have? 3 y = x-5 -3x+4y=-20

Mathematics
1 answer:
DaniilM [7]2 years ago
6 0

Answer:

x=0 and y=-5

Step-by-step explanation:

hope this helps!

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the initial price of a home entertainment system is $34,000. It is discounted by 10% and then by a further 26%. Find the price o
maria [59]
The final price of the item is $22,644

The initial discount of 10% leaves the price at 90% of the retail value:
\frac{x}{34000}  =  \frac{90}{100}
cross multiply to solve for x:
100x = 3,060,000
x = 30,600
This new price is then discounted 26%, which means the final price is 74% of $30,600:
\frac{x}{30600}  =  \frac{74}{100}
cross multiply to solve for x:
100x = 2,264,400
x = 22,644
The final price of the home entertainment system is $22,644
8 0
2 years ago
Elizabeth is going to roll a fair 6-sided die 600 times. Complete the following statement with the best prediction. Elizabeth wi
SCORPION-xisa [38]

Answer:

Close to 300 but not exaclty 300.

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Which could the confederate flag? hi guys
JulijaS [17]

Answer:

hi

Step-by-step explanation:

but that was no a question but thanks

6 0
2 years ago
Replace the exponent with a product and then transform the product into a polynomial. (x+10)^2
kupik [55]

Answer:

x^2 +20x+100

Step-by-step explanation:

(x+10)^2

(x+10) (x+10)

FOIL

first:x*x = x^2

outer: x*10

Inner 10*x

last: 10*10 =100

Add them together

x^2+10x+10x+100

x^2 +20x+100

4 0
3 years ago
What is the vaule of 12(3x+5x),when x=7
german
Fist plug in 7 in to the X values like so 12 (3 (7) +5 (7)) then solve in side the parenthesis 3×7 =21 and 5×7=35 then add them 35+21=56 and then you are left with 12(56) or 12×56= 672

8 0
3 years ago
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