back-of-the-envelope calculation

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back-of-the-envelope calculation

A calculation or mathematical formulation that is approximated in a quick, informal, and rough manner, as might be sketched out on a scrap of paper (such as the back of an envelope). When it came time to pay the bill, we had to do some back-of-the-envelope calculations to figure out who owed how much.
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Using back-of-the-envelope calculations of how air and heat flow through structures, he argues that fires with those proportions produce the hottest flames for their volume of fuel.
Back-of-the-envelope calculations suggest Cairo could receive a further $40 billion, in addition to the money pledged last month, if Saudi Arabia, the UAE and Kuwait were to match prior Qatari levels now Mursi has gone.
Back-of-the-envelope calculations suggest Cairo could receive a further $40bn, in addition to the money pledged last month, if Saudi Arabia, the UAE and Kuwait were to match prior Qatari levels.
Our back-of-the-envelope calculations suggest the impact on liquidity should be neutral to slightly tightening, but in any case will be very marginal and is unlikely to imply any shift in the policy stance.
Vedder's back-of-the-envelope calculations that he shared with me says that those missing workers could be costing the economy as much as $800 billion in GDP per year.
Because according to my back-of-the-envelope calculations we've got, like, a billion years of wind and solar energy ready to go.
He said: "I would agree that it is very difficult to accurately model the effects, and this study has been done very carefully using very sophisticated modelling techniques, but just about anybody could predict the magnitude of this effect doing back-of-the-envelope calculations because it is so significant.
While back-of-the-envelope calculations supported the design, no one could be sure without testing.
If you do some back-of-the-envelope calculations on their claims," he says, "you'll find that it takes about $286,500 in energy to produce and assemble a Prius, [which is] absurd.
The combination of gut feel, experience, keeping up to date with the latest technologies, and ability to perform back-of-the-envelope calculations are all tools employed by a successful manufacturing applications engineer.
Although these questions can, many times, be at least partially addressed by back-of-the-envelope calculations, we are most comfortable dealing with our own specialties, and rarely do we have the courage to venture beyond the well-defined borders of our own disciplines, especially where math and physics are involved
Citing various estimates of the annual economic contributions of these common assets to the economy, and doing back-of-the-envelope calculations, he concludes that common assets (excluding government-owned assets) exceed in value all private wealth.
And she dismissed concerns that one senior figure had described his calculations, made shortly after the election, as 'only back-of-the-envelope calculations at best'.
If we make some back-of-the-envelope calculations and assume that it can grow its EBITDA at that rate as well (which is a big assumption), to come to a valuation of $400 million, you would be assuming the riskiness of EAS' cash flow is only 30% greater than the stock market.