Ask question

Ask question

All categories

2 years ago

15

What is the average speed that robin mus drive to reach her friend's house 170 miles away in 2 1/2 hr

2 answers:

galina1969 [7]2 years ago

7 0

$v = d \div t$
$v = (170 \: mi \times 1.609 \: km) \div 2.5 \: hrs$
$v = 273.53 \: km \div 2.5 \: hrs$
$v = 109.412 \: kmhr - 1$
The average speed is 109.412 kilometers per hour.

Tamiku [17]2 years ago

4 0

68 miles / hour

Average speed = distance / time

distance = 170 and time = 5/2 ( as an improper fraction)

speed = 170 ÷ $\frac{5}{2}$ = 170 × $\frac{2}{5}$ = $\frac{340}{5}$ = 68

You might be interested in

Some farmers use a circular irrigation method. An irrigation arm acts as the radius of an irrigation circle. How much land is co

SIZIF [17.4K]

Answer:

The land that is covered with an irrigation arm of 370 ft is $430,084\ ft^2$

Step-by-step explanation:

<u>Area of the circle</u>

Being r the radius of a circle, its area can be calculated as follows:

$A=\pi\cdot r^2$

The irrigation arm acts as the radius of the irrigation circle, thus r=370 ft. The land covered is the area under the irrigation arm, thus:

$A=\pi\cdot 370^2$

$A=430,084\ ft^2$

The land that is covered with an irrigation arm of 370 ft is $430,084\ ft^2$

3 0

3 years ago

Plz help me with this

forsale [732]

Answer:

$\frac{31x}{30}$

Step-by-step explanation:

Before adding we require the fractions to have a common denominator

The lowest common denominator of 2, 5 and 3 is 30, thus

$\frac{15x}{15(2)}$ + $\frac{6x}{6(5)}$ + $\frac{10x}{10(3)}$

= $\frac{15x}{30}$ + $\frac{6x}{30}$ + $\frac{10x}{30}$

Add the numerators leaving the denominator

= $\frac{15x+6x+10x}{30}$ = $\frac{31x}{30}$

5 0

3 years ago

Read 2 more answers

What is the effect on the graph of the function f(x) = 2x when f(x) is replaced with f(x − 3 5 )? A) translate vertically 3 5 un

Arte-miy333 [17]

Answer:

D.

Step-by-step explanation:

Translates horizontally 3.5 units right.

3 0

2 years ago

Jodie has $70 to spend on flowers for a school event. She wants to buy roses for $24 and spend the rest on lilies. Each lily flo

ioda

Answer:

only 3

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Graph the equation by translating Y =|x|. Y=|x+1|-3

goldenfox [79]

Answer:

look at the graph i made with desmos, i just plugged the equation in.

Step-by-step explanation:

6 0

2 years ago