Can somebody just write the equation for these problems? I can solve them myself. Thanks! 1- On Saturday's, Jim likes to ride the bus to the mall to play video games. The bus fare is $1.80, and each video game costs $0.50. Jim has $6.30. How many video games can he play?
2- Linda currently has $48, and she earns $8 for one hour of babysitting. She needs at least $80 to buy a ski pass. How many hours does Linda need to babysit to be able to buy the ski pass?
3- Heidi's bank account has $2500 dollars in it, and her cell phone bill is automatically subtracting $50 from her account every month. The bank requires its customers to keep more than $250 in their account at all times. How many months until she needs to deposit more money?

the size of the resulting matrix is 1-by-3.

step-by-step explanation:

the size of the two matrices given are as follows:

no .of rows of matrix 1 = 1

no .of columns of matrix 1 = 3

no .of rows of matrix 1 = 3

no .of columns of matrix 1 = 3

to find the size of the resulting matrix without actually solving the multiplication of the matrix, this is what you do:

if resulting matrix = matrix 1 * matrix 2

no. of rows of the resulting matrix = number of rows of matrix 1

no. of columns of resulting matrix = number of columns of matrix 2

note: the order of the matrices matter!

the answer is b i just did that

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional