Li needs 15 pieces of string each 1/2 of a inch long. she cut a 6-inch piece of string into pieces that are each 1/2 of an inch long. how many more pieces of string does she need

Li need 3 more pieces of string

Solution:

Given, Li needs 15 pieces of string each of a inch long.

She cut a 6-inch piece of string into pieces that are each of an inch long.  

Now, let us find how many pieces she got from 6 inch string.

Then, she will get 12 pieces from 6 inch string.

Number of pieces she need more = total number of pieces she need – available pieces  

= 15 – 12 = 3

Hence, she need 3 more pieces.

x = 25

step-by-step explanation:

a^2+b^2=c^2

7^2+24^2=c^2

49+576=625

sqrt625=25

x=25

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)