There are many toys in a kindergarten. the ratio of the number of dolls to the number of balls to the number of cars is 7: 8: 5. if the total number of dolls, balls, and cars is 80, then how many of each type of toy are there?

There are 28 dolls, 32 balls,  20 cars   for 80 total toys

Step-by-step explanation:

dolls : balls: cars: total

7           8          5    (7+8+5)

7           8           5        20

We have a total of  80  

80/20 = 4

We need to multiply each number by 4

dolls : balls: cars: total

7*4     8*4     5*4      20*4

28       32      20       80

There are 28 dolls, 32 balls,  20 cars   for 80 total toys

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490

21

step-by-step explanation: