All categories

3 years ago

3 lawns in 9 hours.what was the rate of mowing in hours per lawn

Mathematics

2 answers:

k0ka [10]3 years ago

6 0

Answer:

Step-by-step explanation:

3 = 9 \:th \\ 1 = 3 \\ 3 \times 3 = 9 \\ 9 \div 3 = 3 \\ so \: that \: answer \: is \: 3

FrozenT [24]3 years ago

5 0

3 because 3x3 = 9 and that just makes more sense then to put anything other unless I’m missing something it’s 3

You might be interested in

What are two other ways to name plane C?

svetoff [14.1K]

Answer: Other names for plane C can be plane EFG or plane EBF hope that helps (:

4 0

2 years ago

If need any help editing an essay or something you can not do on here heres my number

stellarik [79]

Answer:

on what's app ?

Step-by-step explanation:

or telegram ?

7 0

2 years ago

A car has mass 1500 kg and is traveling at a speed of 35 miles/hour. what is its kinetic energy in joules? (Be sure to convert m

photoshop1234 [79]

Answer:

Factor by which kinetic energy increase = 4 times

Step-by-step explanation:

Given,

Mass of the car, v1 = 1500 kg

initial speed of car = 35 miles/h

$=\dfrac{35\times 1609.34}{3600}\ m/s$

= 15.64 m/s

Initial kinetic energy of the car is given by,

$k_1\ =\ \dfrac{1}{2}.m.v_1^2$

$=\ \dfrac{1}{2}\times 1500\times (15.64)^2\ joule$

= 183606.46 J

Final velocity of car v2 = 70 miles/hour

$=\dfrac{70\times 1609.34}{3600}$

= 31.29 m/s

So, final kinetic energy of car is given by

$k_2\ =\ \dfrac{1}{2}.m.v_2^2$

$=\ \dfrac{1}{2}\times 1500\times (31.29)^2$

= 734425.84 J

Now, the ratio of final to initial kinetic energy can be given by,

$\dfrac{k_2}{k_1}=\ \dfrac{734425.84}{183606.46}$

$=>\ k_2\ =\ 4k_1$

Hence, the kinetic energy will increase by 4 times.

7 0

2 years ago

What is an equation of the line that passes through the point (5,1)(5,1) and is parallel to the line x+y=9x+y=9?

disa [49]

Answer:

Step-by-step explanation:

Use the point-slope formula.

y - y_1 = m(x - x_1) you have : x_1 =5 and y_1 =1

m the slope m= -1 (same slope for the line : x+y=9 because this lines are parallel and you can write y=-x+9

an equation for this line is : y-1 = -(x-5)

4 0

2 years ago

What is the answer please help me now

Ann [662]

Answer:

the speaker of speaker is a very good speaker and the author is a little biased in this topic but the topic of

Step-by-step explanation:

he was very good and very good at it he had to do a very good thing to me he had to get the wrong answers

6 0

2 years ago