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Yuri [45]
3 years ago
8

Simplify 5(1-4x)+2x-40

Mathematics
2 answers:
forsale [732]3 years ago
7 0

Answer:

-35 - 18x

Step-by-step explanation:

Distribute to expand it: 5-20x + 2x -40

Collect like terms: (5-40)+ (-20x+2x)

Simplify to get the answer

Nitella [24]3 years ago
5 0

Answer:

-18x-35

Step-by-step explanation:

5(1-4x)+2x-40

5-20x+2x-40

-18x-35

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Help please. Just need to answer 29-31 then I’m done. Thanks
Free_Kalibri [48]

Answer:

29. See table below

30. See attached graph

31. The slope is m= 0.10

The slope represent the cost for every additional call minute.

Step-by-step explanation:

The cost is $0.5  first minute and $0.10 for any additional minutes

If c is the total cost of a call that last t minutes then;

c= 0.10t + 0.5-----where t is the time the call lasted

29. Use the equation above to create the table as;

t {x}            c{y}

1                  0.6

2                 0.7

3                 0.8

4                 0.9

5                 1.0

6                 1.1

The graph of this plot is as attached , where the coordinates are

{1,0.6} , {2,0.7} ,{3,0.8} ,{4,0.9} ,{5,1.0}, {6,1.1}

The slope can be found using the formula;

m=Δy/Δx

m= 1.1 - 0.6 / 6-1

m= 0.5 / 5 = 0.10

The slope represent the cost for every additional call minute.

5 0
3 years ago
If g is the variable, which mathematical sentence expresses the information below? "The number of gallons of gas in the tank plu
Firdavs [7]
An equation for the sentence would be g + 7 = 12, where g is the unknown number of gallons.
5 0
3 years ago
Read 2 more answers
1. 10(.15)=1.5
Fed [463]

Answer:

6.14125(0.15) = 0.9211875 (below 1)

6.14125 - 0.92118 = 5.22007

Step-by-step explanation:

Given data

1. 10(.15)=1.5

2. 10-1.5=8.5

3. 8.5 (.15)=1.275

4. 8.5-1.275=7.225

continuation the sequence

5)    7.225 (0.15) = 1.08375

6)    7.225 -  1.08375 = 6.14125

7)  <u> 6.14125(0.15) = 0.9211875   (below -one)</u>

8 ) <u> 6.14125 - 0.9211875 = 5.2200625 (get number 5)</u>

9)   5.2200625(0.15) = 0.783009

10) 5.2200625 - 0.783009 = 4.4370532

3 0
3 years ago
Which measure is a measure of center?
jok3333 [9.3K]
The Measures of Centrality are:
Mode, Median and Mean

From your list of answers therefore, it is the "mode".
6 0
4 years ago
Read 2 more answers
Let F of x equals the integral from 1 to 3 times x of the natural logarithm of t squared. Use your calculator to find F″(1).
eduard
Reading that as

F(x)=\displaystyle\int_1^{3x}(\ln t)^2\,\mathrm dt

By the fundamental theorem of calculus, the first derivative is

F'(x)=3(\ln(3x))^2

and so the second derivative would be

F''(x)=\dfrac{6\ln(3x)}x

which means

F''(1)=6\ln3
7 0
3 years ago
Read 2 more answers
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