Mathematics, 04.11.2019 05:31 jaaay10
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?
Answers: 2
Mathematics, 21.06.2019 23:00
The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?
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Mathematics, 22.06.2019 00:50
Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.
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Mathematics, 22.06.2019 03:00
The algebraic expression shown below is missing two whole number constants. determine the constants so that the expression simplified to 14x + 11 4x + 8(x + + + 2x
Answers: 1
Skylar needs to buy a pair of dress pants for $40, a shirt for $30, and a tie for $20. skylar has th...
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