Kailee paid $14.84 for stamps. the number of .49-cents stamps was four less then three times the number of 21-cent stamps. how many 49-cent stamps and how many 21-cent stamps did kailee buy?

Kailee bought 26 of 49-cents stamps and 10 of 21-cents stamps.

Step-by-step explanation:

Given:

Total Money paid for stamps = $14.84

Let the number of 49-cents stamps be x.

Also Let the number of 21-cents stamps be y.

Now Total Money paid is equal to sum of number of 49-cents stamps and number of 21-cents stamps.

100 cents = 1$

So 49 cents = $0.49

and 21 cents = $0.21

Hence equation be framed as;

Also Given:

number of .49-cents stamps was four less then three times the number of 21-cent stamps.

hence we can say that;

Now Substituting the value of equation 2 in equation 1 we get;

Now substituting the value of y in equation 2 we get;

Hence Kailee bought 26 of 49-cents stamps and 10 of 21-cents stamps.

55% are girls and 45% are boys : ) hope this

step-by-step explanation:

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )