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blsea [12.9K]
3 years ago
15

Solve each system of equations by adding, subtracting, or multiplying.

Mathematics
1 answer:
professor190 [17]3 years ago
3 0
Solve each system of equations by adding, subtracting, or multiplying.

1) 3x - 3y = -9
2x + y = -3

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The longest side of an acute triangle measures 30 inches. The two remaining sides are congruent, but their length is unknown.
lakkis [162]

The smallest perimeter is 72.44 inches. The longest side of an acute triangle measures 30 inches. The two remaining sides are congruent, but their length is unknown. As much as possible, the sum of the length of the two remaining side must be greater than the other side. Given the side is 30, then the sum of the two remaining sides should be greater than 30 inches.

7 0
3 years ago
1) 2x – y = 1
aleksandrvk [35]

Answer:

1) (2, 3)

2) (2, -5).

Step-by-step explanation:

2x – y = 1

2x +2y = 10   Subtract to eliminate  the 2x:

2x - 2x - y - 2y = 1  - 10

-3y = -9

y = 3.

Plug this into the first equation:

2x - 3 = 1

2x = 4

x = 2.

2)

5x – y =15

x + y = -3     Adding to eliminate y:

5x + x - y + y = 15 + -3

6x = 12

x = 2

Plug this into the first equation:

5(2) - y = 15

-y = 15 - 10 = 5

y = -5.

6 0
3 years ago
Does anyone know this lol
koban [17]

Answer:

62.5

Step-by-step explanation:

P = (6.50f) - 100

All you have to do is plug in 25 for f in the equation and solve for P.

P = (6.50*25) - 100

P = 162.5 - 100

P = 62.5

4 0
2 years ago
Write a real-world problem that gives extra information. Tell what the extra information is.
yawa3891 [41]
1.That there is still slavery in the word. CNN 10 reporters caught on film a slave trade in Africa

2. Extra information is adding more information in your sentence to make it seem more interesting

6 0
3 years ago
1. *
slavikrds [6]

Answer:

I am not so clear about this question

3 0
3 years ago
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