What is X divided by 4+11 that is equal to or greater than eight

Mathematics

2 answers:

irina [24]3 years ago

3 0

Answer:

greater than or equal to 120

Step-by-step explanation:

4+11=15

x is over 15

8*15=120

therefore x must be greater than or equal to 120

True [87]3 years ago

3 0

Answer and Explanation:

x≥8

Meaning it has to be greater or equal to eight. 4+11 is 15. So when we divide 15 from X, we want a quotient bigger or equal to eight. To do that, we have to do 15×8. Thta would be 120. So X would have to represent 120 or greater.

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It takes Leon 17 hours to seal his driveway working by himself. If Michael helps Leon, they can seal the driveway in 2 hours. Ho

Norma-Jean [14]

Answer:

It takes Michael 1 hour, 14 minutes and 7 seconds to seal the driveway close

Step-by-step explanation:

Leon do the work in 17 hours that means the rate of his work is $\frac{1}{17} work/hr$ , so he do $\frac{2}{17}$ of the work in two hours, therefore Michael do the other $\frac{15}{17}$ of the work, thus Michael rate will be $\frac{15}{17} \div\frac{1}{2} =\frac{30}{17} work/hour$ .

So it takes Michael $1h+\frac{4}{17}h$ to complete the work, or $\frac{4h}{17} \times \frac{60min}{1hour} =14\frac{2}{17} min\\\\\frac{2}{17} min \times \frac{60 secs}{1min}=7secs$