How long will it take for someone to run the whole United States?

SAT

2 answers:

tatuchka [14]3 years ago

8 0

Well if you were the president it would be 6-8 years. hope that helped

algol133 years ago

8 0

What? that's not even a real question for school or SAT... but 46 days, 8 hours<span>, and </span>36 minutes<span> set by a running shoe salesman named Frank Giannino Jr. on October 17, 1980. That's the record but here's my average estimate. If someone ran without sleeping at an average of 5 miles per hour, it would take 536 hours to run across from coast to coast. but that's without sleep or eating or resting or changing shoes. so you have to factor in about 14 hours for each day for those essentials</span>

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Soon Yi loves to bake, and she is making flaky pastry. Soon Yi starts with a layer of dough 222 millimeters (\text{mm})(mm)left

frozen [14]

Answer:

3 times

Explanation:

When the dough is folded, it increases by a constant factor. We can model the growth of the thickness using the exponential growth model

$T(n)=T_0(1+r)^n$

Where:

Initial thickness, $T_0$ = 2mm

Growth factor, r =8%=0.08

We want to find the smallest number of times Soon Yi will have to roll and fold the dough so that the resulting dough is at least 2.5mm.

i.e When $T(n)\geq 2.5$ mm$

$2(1+0.08)^n\geq 2.5\\2(1.08)^n\geq 2.5\\$Divide both sides by 2$\\\dfrac{2(1.08)^n}{2}\geq \dfrac{2.5}{2}\\\\1.08^n\geq 1.25\\\\$Change to logarithm form\\n \geq \log_{1.08}1.25\\\\n\geq \dfrac{\log 1.25}{\log 1.08} \\\\n\geq 2.9$