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kari74 [83]
3 years ago
13

A delivery truck drove 203 mi in 3.5 h. After unloading and loading new cargo, it traveled on another 243 mi for 4.5 h. What was

the average speed of the truck over its entire route? Round to the nearest hundredth, if necessary.
1. 55.75 mi/h
2. 56.00 mi/h
3. 58.00 mi/h                               PLZ HURRY!!
4. 63.70 mi/h
Mathematics
1 answer:
Firdavs [7]3 years ago
7 0
The average speed of the truck is calculated by dividing the total distance traveled in a span of the total time given. From the given above, the total distance traveled is
                       total distance = 203 mi + 243 mi = 446 mi
and the total time it took for the whole trip is
                       total time = 3.5 h + 4.5 h = 8 h
The average speed is therefore,
                       average speed = 446 mi/8 h = 55.75 mi/h
Thus, the answer is letter A. 
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FrozenT [24]

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Step-by-step explanation:

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Combine the term 3z + ¾ - 2z
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At the store 6 pounds of bananas cost 1.95 dollars how much does 18 bananas cost
Vladimir79 [104]

Answer:

Brainleist !

Step-by-step explanation:

6 bannas = 1.95

18 bannanas = ?

18/6 = 3

that means 18 is thriple 6, causeing the price of 6 to be tripled as well.

6 bannas = 1.95

18 bannanas = 5.85

5 0
3 years ago
Reasoning Graph the set of ordered pairs (0, 2). (1.4), (2,6). (3.8). Determine whether the relationship is a linear function Ex
polet [3.4K]

Answer:

No, it does not. See below.

Step-by-step explanation:

Lets find out the linear equation that passes trough (-2, 0) and (0, -6).

We know every linear equation has the form: y = mx + b

Where m is the slope on the curve and b the independent term.

We know that, given 2 points (x1,y1) and (x2,y2) we can find the slope m as:

m = (y2-y1)/(x2-x1)

In our case lets replace (x1,y1) and (x2,y2) by (-2, 0) and (0, -6) (notice it could be done in the inverse sense where (-2, 0) is (x2,y2) and (0, -6) is (x1,y1) ). So, our slope is:

m = [-6 - 0] / [0 - (-2)]

m = -6/2 = -3

So, we have a downward linear function with slope -3, this is:

y =  -3x + b

Now, for finding b just replace any of the 2 points given in the equation. Lets replace (-2, 0):

0 = -3(-2) + b

0 = 6 + b

Subtracting 6 in both sides:

-6 = b

So, our independent term is -6 and the function is:

y = -3x - 6

Now lets see if this linear eqution passes trough (2,6). If it does, we can replace the values on the equation. Replacing x by 2:

y = -3(2) - 6 = = -6 - 6 = - 12

So, in our equation, we x is 2 y is -12, and not 6 as in the point (2,6). So, our equation does not passes trough (2,6)

5 0
3 years ago
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