Skylar needs to buy a pair of dress pants for $40, a shirt for $30, and a tie for $20. Skylar has three coupons.

The first coupon gives him x percent off on a shirt.

The second coupon gives him y percent off on the dress pants.

The third coupon gives him z percent off on his total purchase.

He cannot combine the coupon for the total purchase with the other two coupons. These expressions give both possibilities for the total cost of Skylar's purchase after the coupons are applied. The variables represent percentages as decimals.

(1−x)30+(1−y)40+20

(1−z)(40+30+20)

Skylar uses the dress pants coupon.

Which part of the expression represents the percent that Skylar will pay for the dress pants?

(1−y)

40

40 + 30 + 20

40(1−y)

is should be y = 5x

step-by-step explanation:

correct me if im wrong

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.

salary

step-by-step explanation: