Mathematics, 18.06.2020 21:57 von1144
At a portrait studio, three 8-inch-by-10-inch pictures and two 5-inch-
by-7-inch pictures cost a total of $52. Two 8-inch-by-10-inch pictures
and two 5-inch-by-7-inch pictures cost a total of $40. This situation
can be represented by the system of equations, where x is the cost in
dollars of each 8-inch-by-10-inch picture and y is the cost in dollars of
each 5-inch-by-7-inch picture.
3x + 2 y = 52
2x+2y = 40
What is the cost of one 5-inch-by-7-inch picture
Answers: 1
Mathematics, 21.06.2019 22:00, victordguerrero2535
Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of
Answers: 1
Mathematics, 22.06.2019 01:00, wwwvio7565
The table showed price paid per concert ticket on a popular online auction site. what was the average price paid per ticket
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At a portrait studio, three 8-inch-by-10-inch pictures and two 5-inch-
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