Question

A.) A woman spent $250 for jeans and a ski jacket. If she spent y dollars for the ski jacket, represent the amount she spent for the jeans.

B.) The width of a rectangle is x centimeters. Represent the lenghth of the rectangle if it exceeds twice the width by 3 centimeters

Answer 1

Since the sum of the two values must equal 250, then we have:
\[
j+y=250
\]Solving for \(j\) we get:
\[
j=250-y
\]Since:
\[
(250-y)+y=250
\]Then, the amount spent on jeans is:
\[
250-y
\]And so, we're done.

Answer 2

I dont really get how you did that

Answer 3

i feel so stupid

Answer 4

i get it up to

Since:
(250−y)+y=250
Then, the amount spent on jeans is:
250−y
And so, we're done.

Answer 5

It's all right, here:
So we know we have the two values, which must add up to 250. Using that, we get:
\[
j+y=250
\]Subtract y from both sides:
\[
j+y-y=250-y\implies\\
j+0=250-y\implies\\
j=250-y
\]So, the price for the jeans is \(250-y\), where \(y\) is the price for the jacket.

Answer 6

Oh, that's just to show that the expressions are equal, it's an added detail, not really all that important.

Answer 7

thanks so muchh!!!!!!!!! can you also help me with b? its fine if you cant but thanks again

Answer 8

Sure, sorry I was out eating. If the length exceeds twice the width (which we call \(x\)) by three, then:
\[
2x+3=l
\]

Answer 9

thanks thats what i got

Answer 10

Nice, and sure thing.