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NeX [460]
3 years ago
11

Negative three times the sum of two times a number and 1 is equal to 5.” Write an equation that represents the equation, then so

lve
Mathematics
1 answer:
Kamila [148]3 years ago
8 0

So, we need to consider what is being done.


So, lets start with the -3.


-3*


Now, lets see what's next

2 times a number is the same as saying 2x, then add one.


That is equal to five.  

-3(-2x+1)=5

Now,

6x-3 = 5

6x = 8

x= 8/6

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4(2x + 3) in the simplest form
Aleonysh [2.5K]

Answer: 8x+12

Step-by-step explanation:

We can use the Distributive Property to get it in it's simplest form

4(2x+3)

(4)(2x)+(4)(3)

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3 0
3 years ago
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Natasha_Volkova [10]

Answer:

(0.4,1)

Step-by-step explanation:

I hope that this is for homework and not a quiz or test.

Since we already know the value of y which is 1, we can substitute it into the equation above it.

-5x+3=1

-5x=-2

x=2/5=0.4

So in (x,y) format (0.4,1)

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3 years ago
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Alex_Xolod [135]
25 /12*6 =12.5 or thats what i got 
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3 years ago
Write two expressions that are equivalent to the expression below.<br> (9-0) + (9-c) + (9-c) + (9-C)
Nikolay [14]

Step-by-step explanation:

4(9 - c) \\  36 - 4c \\  an \: example \: of \: two \: equivalent \\ expression \: includes \:  \\ the \: general \: experssion \: \\   and \: then \: the \: one \: that \: \\  the \: one \: that \: is \: factured

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Which is the best estimate for the average rate of change for the quadratic function graph on the interval 0 ≤ x ≤ 4?
tatuchka [14]

Answer:

The best estimate for the average rate of change is -2

Step-by-step explanation:

we know that

the average rate of change using the graph is equal to

\frac{f(b)-f(a)}{b-a}

In this problem we have

f(a)=f(0)=0  

f(b)=f(4)=-8

a=0

b=4

Substitute

\frac{-8-0}{4-0}=-2

4 0
3 years ago
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