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kari74 [83]
2 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]2 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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A baseball team played 147 regular season games. The ratio of the number of games they won to the number of games they lost was
makvit [3.9K]

Answer:

They won 63 and lost 84.

Step-by-step explanation:

147 in 7 parts

1 part= 21

ratio of 3 parts to 4 parts

3 parts=63

4 parts=84

8 0
3 years ago
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lakkis [162]
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6 0
3 years ago
Find the value of y so that the points (-5,10) and (3,y) lie on a line with slope -3/8.
shtirl [24]

Answer:

y = 7

Step-by-step explanation:

calculate the slope m using the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (- 5, 10) and (x₂, y₂ ) = (3, y)

m = \frac{y-10}{3+5} = \frac{y-10}{8}

For this to equal - \frac{3}{8}

since the denominators are equal, equate the numerators

y - 10 = - 3 ( add 10 to both sides )

y = 7


8 0
3 years ago
What is a point-slope equation of the line with slope -10 that goes through the point (1,4)?
Svet_ta [14]

Answer:

<h3>The answer is option A</h3>

Step-by-step explanation:

To find an equation of a line in point slope form when given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

where

m is the slope

( x1 , y1) is the point

From the question

the slope is - 10

the point is (1,4)

So the equation of the line is

<h2>y - 4 =  - 10(x - 1)</h2>

Hope this helps you

8 0
2 years ago
10. Write the equation of the line with a slope of -1 and passes through the point (-13,0). Put in Standard
shepuryov [24]

Answer:

Step-by-step explanation:

slope m  = -1;   (-13,0)

y - y1 = m (x-x1)

y - 0 = (-1)* (x - [-13] )

  y  = (-1)* (x + 13)

   y = -1*x  + (-1)*13

   y =  -x -13

4 0
3 years ago
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