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Sophie [7]
3 years ago
13

Find the solution of the system of equations. 3x+3y= −6 10x+3y= −13

Mathematics
1 answer:
Fittoniya [83]3 years ago
6 0

Answer:

x=−1, y=−1

Step-by-step explanation:

Solve for x in the first equation.

x=−2−y

10x+3y=−13

Replace all occurrences of x with −2−y in each equation.

−20−7y=−13

x=−2−y

Solve for y in the first equation.

y=−1

x=−2−y

Replace all occurrences of y with −1 in each equation.

x=−1, y=−1

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Please help ?? =) ^-^
katrin2010 [14]

17 + 6 = 23

She has 23 quarters.

Each games cost 2 quarters.

23/2 = 11.5

She can play 11 games and has 1 quarter leftover.

7 0
3 years ago
Read 2 more answers
Evaluate the expression. 5^2. what is the value of the expression?​
vovangra [49]

Answer:

25

Step-by-step explanation:

Any numbers to the 2nd powered are always squared. Whenever you are given an exponent, the base is the number that you multiply, and the power is one more than how many times you multiply the base number together. In this case, you multiply five by itself once to get 25 as your answer.

7 0
3 years ago
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Identify the slope and y-intercept. y=−12x+7
Tatiana [17]

the slope is -12 because y=mx+b and m= slope

7 0
3 years ago
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17/20 - 2/15= ????????????????????
inn [45]

Answer:

Step-by-step explanation:

43/60

5 0
2 years ago
Write a proportion that can be used to find the cost of 10 notebooks if 3 notebooks cost $1.98.
Mariulka [41]
The solution to the problem is as follows:


For 3 notebooks you pay $1.98 so the ratio is 1:0.66.
For 10 notebooks, then we could scale the ratio and it will become 10:6.60. So they will cost you $6.60.


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
4 0
3 years ago
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