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mixas84 [53]
3 years ago
5

Which system of equations below has exactly one solution? y = –8x – 6 and y = –8x + 6 y = –8x – 6 and One-halfy = –4x – 3 y = –8

x – 6 and y = 8x – 6 y = –8x – 6 and –y = 8x + 6
Mathematics
2 answers:
murzikaleks [220]3 years ago
7 0

Answer:

y=-8x-6 and

y=8x-6 has exactly one solution

Step-by-step explanation:

meriva3 years ago
6 0

Answer:

y = –8x – 6 and y = 8x – 6

Step-by-step explanation:

-8x - 6 = 8x - 6

16x = 0

x = 0

y = 8(0) - 6 = -6

The only solution is (0,-6)

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Write Algebraically: Thirty less than negative fifteen times a number is greater than 54 more than negative three times a number
Yuri [45]

Answer

-15x - 30 > -3x + 54

Explanation

Let's break this sentence down.

Thirty less than means [whatever goes before] minus 30.

Negative fifteen is -15.

Times a number means multiplying by a number. The number will be a variable. And in this case, the variable will be x.

Is greater than means more than.

Negative three is -3.

Times a number means multiplying by a number (in case you forgot or get confused, I wrote it again). That number will be a variable; x. This is the same number.

Now let's write down the equation.

Let's break both sides of the inequality, meaning the left side of 'greater than' and the right side.

The left side says this; "thirty less than negative fifteen times a number."

So let's write this.

So thirty less is minus 30. You are subtracting from "negative fifteen times a number."

Negative fifteen is -15... times a number is -15x.

So the left side of the inequality is -15x - 30.

The right side says this; "54 more than negative three times a number."

54 more than means adding 54 meaning + 54.

And you are adding 54 to "negative three times a number."

Negative three is -3, times a number is -3x.

So the right side of the inequality is -3x + 54.

So the full inequality is -15x - 30 > -3x + 54.

6 0
3 years ago
Molly does 15% of her homework in study hall. If she spent 45 minutes on homework in stuffy hall, how much time in minutes dose
kherson [118]
The answer is 15/100 x 45 =6.75 minutes <span />
6 0
3 years ago
5.
Verdich [7]

Answer:

Step-by-step explanation:

let's say is 42 and 53 if u know your numbers of course you know  the answer but the number that is bigger like 53 that the bigger number but if negative that is the smaller number

4 0
3 years ago
Four Ice Skaters participate in an ice skating competition. The table shows their scores. Who has the highest score?
Lana71 [14]

Answer:

Your answer is Taylor

Step-by-step explanation:


8 0
3 years ago
Read 2 more answers
Helpppppppppppppppppp
Brilliant_brown [7]

Answer:

<em>Option A; the tournament did begin with 128 teams</em>

Step-by-step explanation:

We can see that this equation is represented by compound interest, in other words an exponential function, either being exponential growth or exponential decay;

f ( x ) = a + ( b )^x, where a ⇒ start value, b ⇒ constant, x ⇒ ( almost always considered ) time, but in this case rounds

Option A; The equation is given to be t ( x ) = 128 * ( 1/2 )^x. Given by the above, 128 should represent the start value, hinting that the tournament <em>did indeed begin with 128 teams</em>

Option B; As the rounds increase the number of teams approach 128. Now mind you 128 is the start value, not the end value, which would mean that <em>this statement is false</em>

Option C; The tournament began with 1/2 teams. Theoretically that would not be possible, but besides that the tournament began with 128 teams, only differed by 1/2 times as much every round. <em>This statement is thus false</em>

Option D; This situation actually represents exponential decay. If each round the number of teams differed by 1/2 times as much, the number of teams remaining is less than before, and thus this models exponential decay, not growth<em> ( statement is false )</em>

<em>Answer : Option A; the tournament did begin with 128 teams</em>

4 0
3 years ago
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