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3 years ago

Leila is riding her bicycle. She rides 51.2 kilometers in 4 hours. What is her speed?

1 answer:

4 0

Speed = distance divided by time. Plug in what you know.

Speed = 51.2 km / 4 hrs. ****** Simplify *******************

Speed = 12.8 km/hr

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Write the equation of the line in fully simplified slope-intercept form.

Aneli [31]

Answer:

$y = -\frac{1}{5}x -1$

Step-by-step explanation:

Given

The attached graph

Required

Determine the line equation

First, list out two points from the graph

$(x_1,y_1) = (-5,0)$

$(x_2,y_2) = (0,-1)$

Next, calculate the slope (m)

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

$m = \frac{-1-0}{0 -(-5)}$

$m = \frac{-1}{0 +5}$

$m = -\frac{1}{5}$

The equation in slope intercept form is:

$y = m(x - x_1) + y_1$

This gives:

$y = -\frac{1}{5}(x - (-5)) + 0$

$y = -\frac{1}{5}(x +5)$

Open bracket

$y = -\frac{1}{5}x -1$

4 0

3 years ago

It takes nora two hours to paint a wall 5m by 8m, and zack three hours to paint a wall 4m by 9m. together, how long will it take

Zolol [24]

Nora's speed (5*8)m²/2h= 20 m²/h.
Zack's speed (4*9)m²/3h= 12 m²/h

Together for 1 h they paint (20+12) m²/h=32m²/h

Given area (10*12)m²=120 m²

120m² *1h/32m² = 3.75 h (3h 45 min) to paint 10m*12m together.

3 0

4 years ago

Which arc is congruent to EH?<br> Ο GH<br> Ο FH<br> Ο GE<br> Ο FG

telo118 [61]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Could somebody help me with this please? i forgot how to do these.

goblinko [34]

Since a full circle has 360degrees and this circle only has two angles, subtract the arc of the known angle to find the arc of the unknown angle.

Angle DGF + angle DEF= 360degrees

Angle DGF + 70degrees= 360 degrees

Angle DGF = 290 degrees

The arc of the unknown angle is 290 degrees

4 0

4 years ago

(GIVING BRAINLYST) 1(Multiple Choice Worth 2 points) (15.01 LC) Which number sequence follows the rule subtract 15 starting from

KatRina [158]

Step-by-step explanation:

The correct answer is option D, which is 105, 90, 75, 60, 45.

5 0

1 year ago