regb25851

06.11.2020 • 

Mathematics

The costume jewelry and accessories for the show are bought from sales racks at two different stores on different days. Use x to represent the price of each item on the sales rack at the first store and y to represent the price of each item on the sales rack at the second store.
On the first day, the students spent $30 on 4 items from the first store and 7 items from the second store. On the second day, the students spent $22 on 3 items from the first store and 5
items from the second store. On the third day, the students need to buy 10 items from the first store and 17 items from the second store.
What is the amount of money the students will need on the third day? Find your answer by creating and solving a system of linear equations based on
Explain your reasoning.
first day and the second day.

Ответ:

melanie7152

07.07.2022

Mathematics

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​Every strand of RNA is a sequence of four building blocks called nucleotides. Each RNA nucleotide consists of three parts: a sugar, a phosphate group, and a nitrogen-containing base.

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