jeffreyaxtell4542

14.12.2020 • 

Mathematics

Two processes for hydraulic drilling of rock are dry drilling and wet drilling. In a dry hole, compressed air is forced down the drill rods to flush the cuttings and drive the
hammer. In a wet hole, water is forced down. As part of an analysis to determine the
cost of drilling a hole, an experiment was conducted in the Great-Karoo near Graaff-
Reinet to determine whether the time it takes to dry drill a distance of 5 meters in rock
increases with the depth at which drilling begins. The results for one portion of the
experiment are shown in Table 1.

Ответ:

hddjdudusu

14.12.2020

Mathematics

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If there was a picture of the table it would be helpful

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Ответ:

yialefi

24.10.2021

Mathematics

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4/21 tablespoons of vanilla

Step-by-step explanation:

Let's have the ratios:

2/3 tablespoons of vanilla per 3 1/2 dozen cookiesx tablespoons of vanilla per 1 dozen of cookies

It is solved by cross multiplication as:

2/3 × 1 = 3 1/2 × x2/3 = 7/2xx = 2/3 ÷ 7/2x = 2/3 × 2/7x = 4/21

4/21 tablespoons of vanilla needed for 1 dozen of cookies

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