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Alik [6]
3 years ago
13

Find the solution of the system of equations. –7x – 3y = –20 3х + 6= -15

Mathematics
1 answer:
Nutka1998 [239]3 years ago
7 0

Answer:

(-7,23)

Step-by-step explanation:

You can use the app photo math

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The table below shows the amount of money that Bonnie spent during her last trip to Target. Target Purchases Clothing $56 Grocer
padilas [110]
Its C.





.test test test test


3 0
4 years ago
The Pick 4 games in many state lotteries announce a four‑digit winning number each day. Each of the 10,000 possible numbers 0000
Finger [1]

Answer:

Step-by-step explanation:

Given that the Pick 4 games in many state lotteries announce a four‑digit winning number each day. Each of the 10,000 possible numbers 0000 to 9999 has the same chance of winning. You win if your choice matches the winning digits. Suppose your chosen number is 3079 .

a) The probability that the winning number matches your number exactly

= 1 out of 10000 = 0.0001

b) the probability that the winning number has the same digits as your number in any order

This includes 0379, 0397, 0739, 0793, 0937, 0397 i.e. starting from 0 there are 6 = 3! ways

Or 3079 can be arranged in 4! ways = 24

Favorable outcomes = 24

Prob of winning = 24/10000 = 0.00024

=0.0002

4 0
3 years ago
No fake answers please easy question You are solving systems of equations by graphing and you get the following graph shown belo
RideAnS [48]

Answer:

Hi There! There are no solutions to this system.

Step-by-step explanation:

nd When graphing a set of equations, make sure that the slopes are not equivlient. If the slopes are equivlient, the lines are parallel, and parallel lines do not intersect. You can check the slope of the equations to find if they are equal. Both graphs go down by 3 each time they go over 2, making the slope -3/2. If they have the same slope, but a diffrent Y interset, they are parallel.   You can also set the equations equal to  each other, and when solving find that 7 does not equal 1, or

-3/2X+7=-3/2X+1

+3/2X

7=1

Because this is false, the lines will not intersect.  

6 0
3 years ago
Perform the indicated operation<br> (1 – 3i)(5 + 5i)(4 – 1i) =
almond37 [142]

(1 - 3i)(5 + 5i)(4 - 1i)

= (5 + 5i - 15i - 15i²)(4 - 1i)

= (5 - 10i - 15i²)(4 - 1i)

= 20 - 40i - 60i² - 5i + 10i² + 15i³

= 20 - 45i - 50i² + 15i³

7 0
4 years ago
Read 2 more answers
Don’t answer unless you’re 100% sure<br> Also, explain how you also got the answer.
mojhsa [17]

Answer:

a ( copper and nickel

b ( 1034.9

Step-by-step explanation:

Add all the values of melting points

2,651 + -37.89 = 2613.11

2613 + -458 = 2155.11

2155.11 + 1984.32 = 4139.43

Divide the number by the number of numbers: 4139.43/4 = 1034.8575

1034.8575 rounded to the nearest tenth is 1034.9, thats how you find the mean, or the average.

6 0
3 years ago
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