All categories

2 years ago

Heike runs 800 meters every day. After 9 days, how many kilometers have Heike run? please help.

Mathematics

1 answer:

Nina [5.8K]2 years ago

8 0

Answer:

7.2 Kilometers

Step-by-step explanation:

800 meters = 0.8 kilometers

Therefore, do 0.8 x 9

0.8 x 9 = 7.2 kilometers

You might be interested in

Can someone pls help me

GenaCL600 [577]

The m in y=mx+b stands for the Slope of the equation

3 0

3 years ago

Read 2 more answers

A spinner and 4 cards are shown below:

yan [13]

Answer: 1 over 20

Step-by-step explanation: If the spinner has 5 parts to it at purple is one of those parts then the spinner has a 1/5 chance of it landing there.

If there are 4 cards and 1 of them are pink then there is a 1/4 chance of picking pink(if done randomly)

So if we mutiply 1/4 and 1/5, we get 1/20

That is how I arrived at my answer of 1 over 20

8 0

2 years ago

Read 2 more answers

PLEASE HELP!

Alexus [3.1K]

Answer:

4x+5y-34=0

Step-by-step explanation:

The slope-intercept form of a line is y=mx+b where m is the slope and b is the y-intercept.

My goal is to put in in this form first. Then I will aim to put it in general form, ax+by+c=0.

So let's give it a go:

m is the change of y over the change of x.

To compute this I'm going to line my points up and subtract vertically, then put 2nd difference over 1st difference. Like this:

( 1 , 6)

-(6 , 2)

----------

-5 4

So the slope is 4/-5 or -4/5.

So m=-4/5.

Now we are going to find b given y=mx+b and m=-4/5 and we have a point (x,y)=(1,6) [didn't matter what point you chose here].

6=-4/5 (1)+b

6=-4/5 +b

Add 4/5 on both sides:

6+4/5=b

30/5+4/5=b

34/5=b

So the y-intercept is 34/5.

The equation in slope-intercept form is:

y=-4/5 x + 34/5.

In general form, it is sometimes the goal to make all of your coefficients integers so let's do that. To get rid of the fractions, I'm going to multiply both sides by 5. This clears the 5's that were on bottom since 5/5=1.

5y=-4x+34

Now add 4x on both sides:

4x+5y=34 This is standard form.

Subtract 34 on both sides:

4x+5y-34=0

8 0

3 years ago

Read 2 more answers

Find the area of the

Alex73 [517]

162 m^2

you can make a triangle in the corner with legs length s/2 and the angles are 45 degrees. in a 45 45 90 triangle, the legs are h/sqrt(2) where h is the hypotenuse. this means that s/2=9/2 sqrt(2), s=9 sqrt(2)

and s^2=162

5 0

3 years ago

Please answer both thank you

jeyben [28]

Answer:

Solution given;

male=15

female=27

1st term=5*3

2nd term=3*3*3

now

Highest common factor=3

The maximum number of groups that the teacher can make is 3.

and each team contains 5 male and 9 female.

7 0

3 years ago