Louis has three more quarters than dimes in his pocket, for a total of $1.80. which of the following equation could be used to determine the number of dimes, x, in his pocket? .
a. 0.10(x+3)+0.25x=$1.80.
b. 0.10x+0.25(x+3)=$1.80.
c. 0.10(3x)+0.25x=$1.80.
d. 0.10x+0.25(3x)=$1.80

answer: none of these answers are correct only the second half is

step-by-step explanation:

fabric (square meters)                   cloaks

7                                                           21

4/3                                                         4

step-by-step explanation:

we are told that harry needs 2 square meters of fabric for every 6 wizard cloaks he makes.

1. first of all we will find how many cloaks can be made from 1 square meter of fabric by dividing 6 by 2.

we can see that 3 cloaks can be made from 1 square meter of fabric. now we will multiply 3 by 7 to find number of cloaks made from 7 square meters of fabric.

therefore, harry will make 21 cloaks from 7 square meters of fabric.

2. let us find how many square meters of fabric will be needed to make 4 cloaks.

first of all we will find fabric needed for 1 cloak by dividing 2 by 6.

we can see that fabric needed for 1 cloak is   square meter. now we will multiply   by 4 to find fabric needed for 4 cloaks.