3 years ago

Karla has spent $42 on food. She bought

Mathematics

1 answer:

Mandarinka [93]3 years ago

4 0

Answer:

What is the question?

Step-by-step explanation:

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A plane left Chicago at 8 A.M. At 12 P.M., the plane landed in Los Angeles, which is 1,700 miles away.

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First find the amount of time:
12 pm - 8 am = 4 hours

now divide the total miles traveled by the amount of time travleed:

1700 miles / 4 hours = 425 miles per hour

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3 years ago

The graph shows the relationship between the number of hours that Michelle has been driving and the distance that she has left t

nikitadnepr [17]

Answer:

(b) For each hour that Michelle drove, she traveled an additional 50 miles.

Step-by-step explanation:

Given

$(x_1,y_1) = (0,350)$ ---- start

$(x_2,y_2) = (7,0)$ --- end

Required

Which is true

(a): Journey = 6 hours

This is false, because:

$x = x_2 - x_1$

$x = 7-0$

$x = 7$ ---- 7 hours

(b): The average rate is 50 miles per hour

To do this, we calculate the slope (m) using:

$m = \frac{y_2 -y_1}{x_2- x_1}$

$m = \frac{0 - 350}{7-0}$

$m = -\frac{350}{7}$

$m = -50$

This means that the rate is 50 miles driven in 1 hour.

<em>(b) is correct</em>

<em>Others are incorrect</em>

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3 years ago

The midpoint of AB is M(-1, –4). If the coordinates of A are (-3, -7), what are

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Answer:

Step-by-step explanation:

If M(-1, 4) is midpoint of AB then:

$x_M-x_A=x_B - x_M\qquad\quad\ \wedge\qquad y_M-y_A=y_B - y_M\\\\ -1-(-3)=x_B-(-1)\qquad\wedge\qquad -4-(-7)=y_B -(-4)\\\\ -1+3=x_B+1\qquad\qquad\wedge\qquad\ \ -4+7=y_B+4 \\\\ {}\qquad x_B=1\qquad\qquad\wedge\qquad\qquad \ y_B=-1$

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3 years ago

Susan has 5 pounds of flour. She is purchasing more flour. She can purchase up to 5 bags of flour. Each bag weighs 20 pounds. Su

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Hello,

<span>all real numbers from 1 to 5 inclusive

Hope this helps</span>

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3 years ago

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colin has a plank of wood that is 2 yards long. If he plans to cut this plank into 6/7 yard pieces, how many pieces can he cut?

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He can cut 2 3/7 peices

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3 years ago