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4 years ago

In 1989 Dutch ice skater dries van wijhe skated 200km at an average speed of 35.27 km/h. How long was he skating?

Mathematics

1 answer:

Lelu [443]4 years ago

7 0

200/35.27=<span>5.6022409 hours total
Hope this helps!
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When is the sum of two rational numbers with different signs positive?

Delvig [45]

When the sign of the number with the greatest absolute value is positive

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3 years ago

A line segment has (x1, y1) as one endpoint and (xm, ym) as its midpoint. Find the other endpoint (x2, y2) of the line segment i

Tasya [4]

Answer:

(3,7) for the first line, and (12,0) for the second one.

Step-by-step explanation:

Hi Isabella,

1) The Midpoint of a line, when it comes to Analytical Geometry, is calculated as Mean of two points it follows:

$x_{m}=\frac{x_{1} +x_{2} } {2}, y_{m} =\frac{y_{1}+ y_{2} }{2}$

2) Each segment has two endpoints, and their midpoints, namely:

a) (1,-9) and its midpoint (2,-1)

b) (-2,18) and its midpoint (5,9)

3) Calculating. You need to be careful to not sum the wrong coordinates.

So be attentive!

The first line a

$2=\frac{1+x_{2} }{2}\\ 4=1+x_{2}\\ 4-1=-1+1+x_{2} \\ x_{2}=3\\-1=\frac{y_{2}-9}{2}\\-2=y_{2}-9\\+2-2=y_{2}-9+2\\ y_{2}=-7$

So (3,7) is the other endpoint whose segment starts at (1,-9)

The second line b endpoint at (-2,18) and its midpoint (5,9)

$5=\frac{-2+x_{2} }{2} \\ 10=-2+x_{2} \\ +2+10=+2-2+x_{2}\\ x_{2}=12 \\ \\ 9=\frac{18+y_{2} }{2} \\ 18=18+y_{2} \\ -18+18=-18+18+y_{2}\\ y_{2} =0$

So (12,0) it is the other endpoint.

Take a look at the graph below:

8 0

3 years ago

Complete the unit rate:<br><br> 924 pages in 33 days : A.______ pages in B. _____ day/s

ValentinkaMS [17]

Answer:

28 pages in 1 day

Step-by-step explanation

you have to find the unit rate of pages to days, the number of days must be 1.

to find the amount of pages, you find 924/33, which equals 28.

a = 28

b = 1

8 0

3 years ago

WILL GIVE BRAINLIEST!

Dovator [93]

D.
or divide 900 by 20 and see the closest

7 0

3 years ago

Write an equation in point-slope form for the line that has a slope of 9/4 and contains the point (3, −4).

ozzi

Answer:

y+4 = 9/4(x-3)

Step-by-step explanation:

m=slope and b=y-intercept (probably useful for later on in the school years)

y-y1 = m(x-x1) where m is the slope and (x1,y1) is the point

Substituting in what we know

y--4 = 9/4(x-3)

y+4 = 9/4(x-3)

5 0

2 years ago

Read 2 more answers