Asales associate in a department store earns a commission on each suit and each pair of shoes sold. one week, she earned $47 in commission for for selling 3 suits and a pair of shoes. the next week, she earned $107 in commission for selling 7 suits and 2 pairs of shoes. how much commission for selling each suit and each pairs of shoes? solve by substitution.

The commission for selling each suit is $ 13 and commission for selling each pairs of shoes is $ 8

Solution:

Let "a" be the commission earned on each suit

Let "b" be the commission earned on each pair of soes

One week, she earned $47 in commission for for selling 3 suits and a pair of shoes

Therefore, we frame a equation as:

The next week, she earned $107 in commission for selling 7 suits and 2 pairs of shoes

Therefore, we frame a equation as:

Substitute eqn 1 in eqn 2

7a + 2(47 - 3a) = 107

7a + 94 - 6a = 107

a = 107 - 94

Substitute a = 13 in eqn 1

b = 47 - 3(13)

b = 47 - 39

Thus commission for selling each suit is $ 13 and commission for selling each pairs of shoes is $ 8

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x