Final answer:
To find out how many stickers Cheko received, we can use the given ratio and the number of stickers Miko received. By dividing the number of stickers Miko received by the value of each part in the ratio, we can find the total value of all parts. Multiplying this total by the value of each part that Cheko received will give us the number of stickers Cheko received.
Step-by-step explanation:
To find out how many stickers Cheko received, we first need to find the total number of stickers in the ratio 4:7. Since the ratio represents a total of 4+7=11 parts, we can divide the number of stickers Miko received, 20, by 4 to find out the value of each part. Thus, each part is equal to 20/4=5 stickers. Since Cheko received 7 parts, we can multiply the value of each part by 7 to find out how many stickers Cheko received. Therefore, Cheko received 5 * 7=<<5*7=35>>35 stickers.