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2 years ago

11

Your delivery runs took 7 hours 12 minutes on Monday,6 hours 46 minutes on Wednesday and 6 hours 53 minutes on Friday. What was

the average time for a delivery run?

2 answers:

blagie [28]2 years ago

5 0

7 hours + 6 hours + 6 hours
=19 hours
12 minutes + 46 minutes + 53 minutes
=111 minutes
=1 hour 51 minutes

19 hours + 1 hour and 51 minutes is 20 hours and 51 minutes. This is the total time.

Average time = total time/number of deliveries

(20 and 51/60) divided by 3
=6.95 hours
= 6 hours and 57 minutes

olga55 [171]2 years ago

3 0

Answer:

5 hours 37 minutes

Step-by-step explanation:

Time taken on Monday = 7 hours 12 minutes

Time taken on Tuesday = 6 hours 46 minutes

Time taken on Wednesday = 6 hours 53 minutes

Total time taken = 7 hours 12 minutes + 6 hours 46 minutes + 6 hours 53 minutes

Total time taken = 15 hours 111 minutes

Average time = $\frac{Total Time Taken}{3}$

= $\frac{15 hours 111minutes}{3}$

= 5 hours 37 minutes

Hence , the correct answer is 5 hours 37 minutes

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3 years ago

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insens350 [35]

Answer:

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Step-by-step explanation:

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Remember that the sum of all the angles of ANY triangle is 180 degrees. To find the missing angle of the triangle all we need to do is subtract 180 degrees with 69 and 66 to get the missing angle of the triangle (45 degrees)

2. Angle Sum Theorem?: Note: the degrees of a straight line is 180 degrees

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Answer: 123 degree angle

6 0

2 years ago

A line segment AB has the coordinates A (2,3) AND B ( 8,11) answer the following questions (1) What is the slope of AB? (2) What

gizmo_the_mogwai [7]

Answer:

1) The slope of the line segment AB is $\frac{4}{3}$ .

2) The length of the line segment AB is 10.

3) The coordinates of the midpoint of the line segment AB is $M(x,y) = (5,7)$ .

4) The slope of a line perpendicular to line segment AB is $-\frac{3}{4}$ .

Step-by-step explanation:

1) Let $A(x,y) = (2,3)$ and $B(x,y) = (8,11)$ . From Analytical Geometry, we get that slope of AB ( $m_{AB}$ ), dimensionless, is determined by the following formula:

$m_{AB} = \frac{y_{B}-y_{A}}{x_{B}-x_{A}}$ (1)

If we know that $x_{A} = 2$ , $x_{B} = 8$ , $y_{A} = 3$ and $y_{B} = 11$ , the slope of the line segment is:

$m_{AB} = \frac{11-3}{8-2}$

$m_{AB} = \frac{4}{3}$

The slope of the line segment AB is $\frac{4}{3}$ .

2) The length of the line segment AB ( $l_{AB}$ ), dimensionless, can be calculated by the Pythagorean Theorem:

$l_{AB} =\sqrt{(x_{B}-x_{A})^{2}+(y_{B}-y_{A})^{2}}$ (2)

If we know that $x_{A} = 2$ , $x_{B} = 8$ , $y_{A} = 3$ and $y_{B} = 11$ , the length of the line segment AB is:

$l_{AB} = \sqrt{(8-2)^{2}+(11-3)^{2}}$

$l_{AB} = 10$

The length of the line segment AB is 10.

3) The coordinates of the midpoint of the line segment AB are, respectively:

$x_{M} = \frac{x_{A}+x_{B}}{2}$ (3)

$y_{M} = \frac{y_{A}+y_{B}}{2}$ (4)

If we know that $x_{A} = 2$ , $x_{B} = 8$ , $y_{A} = 3$ and $y_{B} = 11$ , the coordinates of the midpoint of the line segment AB are, respectively:

$x_{M} = \frac{2+8}{2}$

$x_{M} = 5$

$y_{M} = \frac{3+11}{2}$

$y_{M} = 7$

The coordinates of the midpoint of the line segment AB is $M(x,y) = (5,7)$ .

4) From Analytical Geometry we can determine the slope of a line perpendicular to line segment AB as a function of the slope of the line segment:

$m_{\perp} = -\frac{1}{m_{AB}}$ (5)

If we know that $m_{AB} = \frac{4}{3}$ , then the slope of a line perpendicular to AB is:

$m_{\perp} = - \frac{1}{\frac{4}{3} }$

$m_{\perp} = -\frac{3}{4}$

The slope of a line perpendicular to line segment AB is $-\frac{3}{4}$ .

7 0

2 years ago

Sarah’s company sells bracelets and rings. Her first customer buys 3 bracelets and 10 rings, spending a total of $48. Her second

timofeeve [1]

Sarah charges $6.00 for one bracelet.

We know that a collection of one or more linear equations containing the same variables is known as a system of linear equations in mathematics.

Let Sarah charges $x and $y for one bracelet and one ring respectively.

Since her first customer spends $48 on 3 bracelets and 10 rings, we can write it as

3x + 10y = 48 ...(1)

Since her second customer spends $54 on 7 bracelets and 4 rings, we can write it as

7x + 4y = 54 ...(2)

Now, we have to solve this system of linear equations.

Multiplying (1) by 2, 6x + 20y = 96 ...(3)

Multiplying (2) by 5, 35x + 20y = 270 ...(4)

Subtracting (3) from (4), 35x + 20y - 6x - 20y = 270 - 96

i.e. 29x = 174

i.e. x = 174/29 = 6

Therefore we can conclude that Sarah charges $6 for one bracelet. Option B is correct.

Know more about the system of linear equations here -

brainly.com/question/27664510

#SPJ10

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2 years ago

A.Find the slope of the graph using the points (1,2) and (5,10). Remember that the slope is the constant rate of change.

Reika [66]

Answer: your answer is D

Step-by-step explanation:

Ithe point is you have no question just answers but I believe your answer is D

8 0

3 years ago