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Assoli18 [71]
3 years ago
5

What is -64/5 as a mixed number

Mathematics
1 answer:
Slav-nsk [51]3 years ago
8 0
Your answer to the question:

-12 4/5

And then decimal form:

-12.8
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This system has one solution.
mel-nik [20]

Answer:

<h2>y = 2</h2>

Step-by-step explanation:

y=8x-14\qquad(1)\\y=x^2+4x-10\qquad(2)\\\\\text{compare equations}\\\\x^2+4x-10=8x-14\qquad\text{subtract 8x from both sides}\\\\x^2-4x-10=-14\qquad\text{add 14 to both sides}\\\\x^2-4x+4=0\\\\x^2-2x-2x+4=0\\\\x(x-2)-2(x-2)=0\\\\(x-2)(x-2)=0\\\\(x-2)^2=0\iff x-2=0\qquad\text{add 2 to both sides}\\\\x=2\\\\\text{Put the value of x to (1)}:\\\\y=8(2)-14=16-14=2

4 0
3 years ago
Show and explain how replacing one equation by the
kvv77 [185]

Answer:

<h3>x = 1/2 and y = 5</h3>

Step-by-step explanation:

First, let's multiply the first equation by two on the both sides:

8x + 7y = 39 \times 2

⇒ 16x + 14y = 78

Now, the system is:

16x + 14y = 78\\\\4x -14y = -68

After adding this up in the column:

(16x + 4x) + (14y - 14y) = 78 - 68\\\\20x = 10\\\\ x = 10/20 = 1/2

y can be calculated by replacin the x:

8x + 7y = 39\\\\ 8* 1/2 + 7y = 39\\\\4 + 7y = 39\\\\7y = 39 - 4\\\\7y = 35\\\\ y = \frac{35}{7}  = 5

<h3>x = 1/2 and y = 5</h3>

8 0
3 years ago
Read 2 more answers
Can you please help me find out what m
andrew-mc [135]

Answer: B.

Step-by-step explanation: A triangle is 180 degrees. m< a + b + c = 180, so 75+20+x=180, so x = 85. B.

3 0
3 years ago
Given 7x + 2 &gt; 58, which number is not in the solution set?
Hoochie [10]

Answer:

option 1

Step-by-step explanation:

7x + 2 > 58 ( subtract 2 from both sides )

7x > 56 ( divide both sides by 7 )

x > 8

So only values greater than 8 are in the solution set

6 is not greater than 8, then is not in the solution set

7 0
3 years ago
The function f(x)=3(2.5)^x is shown on the coordinate plane.
Simora [160]
The function f(x)=3(2.5)^x is shown on the coordinate plane.

Select from the drop-down menus to correctly describe the end behavior of f(x) .


As x increases without bound, the graph of f(x) increases without bound
3 0
4 years ago
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