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2 years ago

A woman a walked 12km at 3km/hr and cycled 18km at 9km/hr. what is her average speed for the whole journey.

Mathematics

1 answer:

Deffense [45]2 years ago

7 0

Answer:

5 km/h

Step-by-step explanation:

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Sent a picture of the solution to the problem (s).

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2 years ago

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

2 years ago

there are 104 red candies in a candy machine. this represents 26% of the candy in the machine. how many total are in the candy m

Alborosie

There are 400 candies in the machine.

Step-by-step explanation:

Given,

Number of red candies in machine = 104

This represents 26% of the total candies.

Let,

x be the total candies in the machine.

According to statement;

26% of x = 104

$\frac{26}{100}*x=104\\0.26x=104$

Dividing both sides by 0.26

$\frac{0.26x}{0.26}=\frac{104}{0.26}\\x=400$

There are 400 candies in the machine.

Keywords: percentage, division

Learn more about percentages at:

#LearnwithBrainly

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3 years ago

A line that includes the point (2,10) has a slope of 9. What is its equation in slope-intercept form

Bumek [7]

Equation: y= 9x+ (y-intercept)

Step-by-step explanation:

equation in slope-intercept form is y=mx+b. m represents the slope of the line, and b represents the y=intercept, which is where the line crosses the y-axis.

3 0

3 years ago

Solve this system of equations using elimination. X-6=-17 -2x+12y=7

AfilCa [17]

Answer:

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

Point Form:

(−11,−5/4)

Equation Form:

x=−11,y=−5/4

8 0

2 years ago

A woman a walked 12km at 3km/hr and cycled 18km at 9km/hr. what is her average speed for the whole journey.​

A woman a walked 12km at 3km/hr and cycled 18km at 9km/hr. what is her average speed for the whole journey.