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pashok25 [27]
3 years ago
9

Joe goes running in the park. He runs 3 miles and does it in 42 minutes. How many minutes doe it take him to run a mile?​

Mathematics
2 answers:
Simora [160]3 years ago
6 0
14 minutes per mile since 42/3 is 14
nlexa [21]3 years ago
5 0

Answer:

14 minutes

Step-by-step explanation:

  1. Set up a proportion: \frac{42}{3} = \frac{x}{1}  
  2. Cross multiply, then divide: 42 × 1 = 42, 42 ÷ 3 = 14
  3. So, it takes Joe 14 minutes to run 1 mile

I hope this helps!

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The sale price of apples at a local grocery store is $1.35 for the first pound and $1.10 for each additional pound. Which functi
FromTheMoon [43]

Answer:

  1.)  y = 1.10(x – 1) + 1.35

Step-by-step explanation:

When x pounds of apples are purchased, the number of "additional" pounds is (x-1). The cost of those additional pounds is then added to the cost of the first pound to get ...

  y = 1.10(x -1) +1.35

_____

<em>Comment on the function rule</em>

Personally, I think it is easier to write the rule as y = 1.10x +0.25, considering the first pound to have a $0.25 premium added to its otherwise $1.10 cost. This saves an operation when evaluating the formula for some value of x.

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Today only , a table is being sold at 34% discount. The sale price is $495. What was the price yesterday?
tekilochka [14]
In the given problem, it is given that the table is sold at a discount of only one day and that is today. so the table would be have been sold at its original price yesterday. The discount given today is 34% and the sale price for today is $495.
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Then we can write the equation as
x = 295 * (100/34)
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Not enough information to this question 
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Which fraction out of 5/8 and 7/11 is closest to 2/3?
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Well... hell, let's just convert them all with the same denominator then

hmmm let's see, we have the denominators of 8,11 and 3

so... we'll multiply the 5/8 times (11*3) or 33
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and then we'll multiply 2/3 times (8 * 11)

notice, we're simply using the other's denominator's product, to multiply the fractions... anyhow... let's check

\bf \cfrac{5}{8}\cdot \cfrac{3\cdot 11}{3\cdot 11}\implies \cfrac{165}{264}&#10;\\\\\\&#10;\cfrac{7}{11}\cdot \cfrac{8\cdot 3}{8\cdot 3}\implies \cfrac{168}{264}&#10;\\\\\\&#10;\cfrac{2}{3}\cdot \cfrac{8\cdot 11}{8\cdot 11}\implies \cfrac{176}{264}\\\\&#10;-------------------------------\\\\&#10;\textit{now, which of }\cfrac{165}{264}\textit{ and }\cfrac{168}{264}\textit{ is closest to }\cfrac{176}{264}\quad ?
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