Using two unit multiplier 628 km is equal to 62800000 cm
<u>Solution:</u>
628 kilometer to centimeter
We will go from kilometers to meters to centimeters.
Start by putting 628 km over 1:
![\frac{628 km}{1}](https://tex.z-dn.net/?f=%5Cfrac%7B628%20km%7D%7B1%7D)
We want to get rid of km and bring in m.
We know that 1000 m = 1 km.
Since km is in the numerator, we will make the first unit multiplier by putting 1 km in the denominator and 1000 m in the numerator, so the km will cancel. So we multiply by the unit multiplier,
![\frac{628 km}{1} \times \frac{1000m}{1km}](https://tex.z-dn.net/?f=%5Cfrac%7B628%20km%7D%7B1%7D%20%5Ctimes%20%5Cfrac%7B1000m%7D%7B1km%7D)
Now the km's will cancel:
![\frac{628}{1} \times \frac{1000m}{1}](https://tex.z-dn.net/?f=%5Cfrac%7B628%7D%7B1%7D%20%5Ctimes%20%5Cfrac%7B1000m%7D%7B1%7D)
Now we want to get rid of m and bring in cm.
We know that 100 cm = 1 m.
Since meter is in the numerator, we will make the first unit multiplier by putting 1 meter in the denominator and 100 cm in the numerator, so the meter's will cancel. So we multiply by the unit multiplier
![\frac{100cm}{1m}](https://tex.z-dn.net/?f=%5Cfrac%7B100cm%7D%7B1m%7D)
![\frac{628}{1} \times \frac{1000m}{1} \times \frac{100cm}{1m}](https://tex.z-dn.net/?f=%5Cfrac%7B628%7D%7B1%7D%20%5Ctimes%20%5Cfrac%7B1000m%7D%7B1%7D%20%5Ctimes%20%5Cfrac%7B100cm%7D%7B1m%7D)
We cancel the m's and we end up with:
![628 \times 1000 \times 100 cm](https://tex.z-dn.net/?f=628%20%5Ctimes%201000%20%5Ctimes%20100%20cm)
= 62800000 cm
Thus 628 km is equal to 62800000 cm
Answer:
0.71
Step-by-step explanation:
9.23 divided by 13 easy
Answer:
B (6,0) because when graphed it would make a 90° angle
We set up a proportion:13/?= 21/100
Cross multiply:
21*?= 13*100
⇒ ?= 13*100/21= 61.905
13 is 21% of 61.905~