The number of dolls that lisa, mia and nina have are in the ratio 6: 4: 7 nina had 21 dolls. how many dolls does lisa have?

Lisa, mia, ninaratio of 6:4:7...added = 17so lisa has 6/17 of the total dollsmia has 4/17 of the total dolls and Nina has 7/17 of the total dolls.

Nina has 21 dollsshe also has 7/17 of the total dolls...
7/17x = 21with x being the total number of dolls
x = 21 / (7/17)
x = 21 * 17/7
x = 357/7
x = 51...so there are 51 total dolls

Lisa : she has 6/17 of the total dolls
6/17 * 51 = 306/17 = 18 dolls <

Mia : she has 4/17 of the total dolls
4/17 * 51 = 204/17 = 12

so in summary, Nina has 21 dolls, Lisa has 18 dolls and Mia has 12 dolls for a total of 51 dolls

Answer: 10pi

x = central angle apc = measure of minor arc ac

the two angles x and 30 add to 180, so x+30 = 180 and x = 180-30 = 150. the measure of minor arc ac is 150 degrees.

what we need to do from here is find the circumference and then multiply it by x/360 since there are 360 degrees in a circle. in this case, x = 150, so x/360 = 150/360 = 15/36 = 5/12. the shortest distance along the curve from a to c is 5/12 of the distance around the entire circle (aka circumference)

c = circumference

c = pi*d

c = pi*24

c = 24pi

now multiply this by 5/12 to get

distance along minor arc ac = (5/12)*(circumference)

distance along minor arc ac = (5/12)*(24pi)

distance along minor arc ac = 10pi

the formula you can use is

l = (x/360)*pi*d

with

l = length of minor arc

x = central angle

d = diameter

which essentially is the steps we took though a bit differently.

A)26•2=52there are 2 sides with the same length116-52=64the other 2 side have to be half of 64 each64/2=32the width is 32b)make two sentences about these steps because your teacher knows how you write and explain things.