3 years ago

Do you think increasing consumption of diet soda drinks causes traffic accidents

Mathematics

1 answer:

alexira [117]3 years ago

5 0

No, there is no discernible correlation
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Randall wants to mix 50 lb of nuts worth $2 per lb with some nuts worth $7 per lb to make a mixture worth $6 per lb. How many po

defon

A = nuts of $2/lb

B = nuts of $7/lb

let's say we'll mix "x" lbs of B to get a mixture with A of "y" lbs, therefore

$\bf \begin{array}{lcccl} &\stackrel{lbs}{quantity}&\stackrel{\textit{cost}}{per~lb}&\stackrel{\textit{cost}}{total}\\ \cline{2-4}&\\ A~ nuts&50&2&100\\ B~nuts&x&7&7x\\ \cline{2-4}&\\ mixture&y&6&6y \end{array} \\\\\\ \begin{cases} 50+x=\boxed{y}\\ 100+7x=6y \end{cases}\qquad \qquad \implies 100+7x=6\left( \boxed{50+x} \right) \\\\\\ 100+7x=300+6x\implies \blacktriangleright x=200 \blacktriangleleft$

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3 years ago

Last week Will power wailked 1 4/5 miles per day for each of the 7 days. During the same week, he also jogged 2 3/4 miles per da

natali 33 [55]

A total of 26 7/20 miles or in decimal form: 26.35 miles

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3 years ago

How do you do something like this?<br><br> (8/10)^-2

Nostrana [21]

( 4 / 5 )^-2 = ( 5 / 4 )^2 = 25 / 16 ;

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3 years ago

Ryan is a wrestler trying to make weight. He currently weighs 200 lbs. If he cuts 2 lbs. per week, how many weeks will it take h

Varvara68 [4.7K]

The inequality for this problem is

200 - 2w < 175 => 2w > 200-175 => 2w > 25 => w > 12.5

The conclusion is that Ryan will have less than 175 lbs after 13-th week.

Good luck!!!

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3 years ago

10.045+2.673+105.95 to the nearest whole number and then estimate the sum

horsena [70]

Answer:

119

Step-by-step explanation:

The nearest whole numbers from those listed are

106

The estimated sum = 119

The actual sum is 118.668

When you are doing a test, being able to estimate is a very powerful skill. 119 is close enough to the actual answer that you know your actual answer is likely correct.

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3 years ago