Complete the statement to explain why 8,000 divided by 800 = 10

2 answers:

8 0

It equals 10 because if you multiply 10 by 800 you should get 8000 because 10 multiplied by 8 is 80 so all you need to do from there is add all the zeros.

ddd [48]3 years ago

7 0

Because when you multiply by 10, it adds a zero to the end of the number, like 12*10 = 120, so vise versa for dividing

You might be interested in

4. x^2+13x=-42

Mrrafil [7]

$x^2+13x=-42\ \ \ |+42\\\\x^2+13x+42=0\\\\x^2+6x+7x+42=0\\\\x(x+6)+7(x+6)=0\\\\(x+6)(x+7)=0\iff x+6=0\ \vee\ x+7=0\\\\x=-6\ \vee\ x=-7$

Anaswer: <span>a. x = -6 or x = -7</span>

8 0

3 years ago

Anna went from home to school with the speed 3 km/hour. She ran back home with the speed 6 km/hour.Her sister Olga went to schoo

PIT_PIT [208]

Let:
v = Olga's speed
t = the time Anna spent going to school (3 km/hour)
t/2 = the time Anna spent running back home with speed of 6 km/hour
So, t + t/2 = 3t/2 is the total time
In the meantime distance = speed*time and the both made the same distance we can put it as:
3t + 6*(t/2) = (3t/2)*v
6t = (3/2)tv divide both sides by t
(3/2)v = 6
v = 2*6/3
v = 4 km/hour
Olga's speed was 4 km/hour.

3 0

3 years ago

What is 21/4 in simplest form

scZoUnD [109]

This is already in simplest form. it can't be reduced furthermore.

As a mixed number is 5 1/4

As a decimal is 5.25

3 0

3 years ago

Which can be used to expand the expression below?

musickatia [10]

What is the question

7 0

3 years ago