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Arturiano [62]
3 years ago
15

Travis lives 195 miles from Dallas. On a normal trip, it takes 180 minutes to drive from his house to Dallas. What is Travis' av

erage rate of speed in miles per hour?
Mathematics
1 answer:
tankabanditka [31]3 years ago
6 0

Answer:

65 mph

Step-by-step explanation:

195 mi/180 min

195 mi/3 hr

65 mi/1 hr

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The tables below show the values of Y for different values of X
pogonyaev

Answer:

Option D

Step-by-step explanation:

Rate of change of a linear function between two points (x_1,y_1) and (x_2,y_2) is given by,

Rate of change 'm' = \frac{y_2-y_1}{x_2-x_1}

From the given table,

Rate of change of the function between (-2, 6) and (-4, 9),

Rate of change 'm' = \frac{9-6}{-4-(-2)}

                           m = \frac{3}{-2}

Initial value = y-intercept

Let the equation of the line passing through a point (h, k) is,

y - k = m(x - h)

If a point (-2, 6) is lying on the graph of the function,

y - 6 = -\frac{3}{2}(x+2)

y = -\frac{3}{2}x-3+6

y = -\frac{3}{2}x+3

Y-intercept of the function = 3

Therefore, initial value of the function = 3

Option D is the answer.

3 0
2 years ago
A number added to itself equals 3 less than the number..
ivanzaharov [21]
The answer would be -6.
3 0
3 years ago
Kelly bought a new car for $20,000. The car depreciates at a rate of 10% per year.
Vlad1618 [11]

Answer:

Use the formula.

P=P'(1-R/100)^T

where,

P=final rate

P'=initial rate

R=Rate of Depreciation

T=Time.

3 0
3 years ago
10x + 12 = [2+3(2x-4)+1]<br> Solve for x
pogonyaev

Answer:

-21/4

Step-by-step explanation:

3 0
3 years ago
The sum of two numbers is -6. The difference is 16. Find the two numbers.
Bess [88]

Answer:

-5\:\mathrm{and}\: 11

Step-by-step explanation:

We can write the following system of equations:

\begin{cases}x+y=6\\x-y=16\\\end{cases}

Adding both equations together, we isolate x and get:

2x=22,\: x=11

Plugging x=11 in any of the equations, we can solve for y:

11+y=6,\: y=-5

Verify that the solution pair (11, -5) works \checkmark

Therefore, the two numbers are \fbox{$-5\:\mathrm{and}\: 11$}.

7 0
3 years ago
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