Use one unit multiplier to write the expression needed to convert 42 meters to centimeters? It also said;Do not carry out the actual multiplication. So do I just write my answer 42m over 1 x 100cm over 1m?
Thank You for your help.
Short answer: yes, you are correct.
Some explanation... just watch the units. You can always multiply by 1 without changing the value of the expression.
1m = 100cm, so
1m/100cm = 1
100cm/1m = 1
Now, keep the units with the values. They cancel, just like factors:
42m * 100cm/1m = 4200cm
the various conversion factors you have learned are just different ways of writing 1, so that units cancel.
Thank You
Carl shades a row in the multiplication table . The products in the row are all even . The ones digits in the products repeat .0,4,8,2,6.whst row does Carl shade?
To convert from meters to centimeters, you can use the unit multiplier method. The unit multiplier is a fraction that is equal to 1, but expressed in different units.
In this case, you want to convert 42 meters to centimeters. Since there are 100 centimeters in 1 meter, you can set up the unit multiplier as follows:
42 meters x (100 centimeters / 1 meter)
Notice that the unit "meter" appears in both the numerator and the denominator, which cancels out, leaving you with:
42 x 100 centimeters
This expression represents the conversion from meters to centimeters. However, as indicated, you should not carry out the actual multiplication, so you can leave it as:
42 meters x (100 centimeters / 1 meter)
This format shows that you have set up the conversion correctly using the unit multiplier method.