subject
Mathematics, 01.03.2021 18:20 timozy95

Isobel gives a puzzle to some people and records how long they take to solve it. Some of her results are summarised in the histogram. Four people took 20 minutes or less to solve it. Work out the percentage of the people who took 30 minutes or more.

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 17:30
The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.
Answers: 3
question
Mathematics, 21.06.2019 21:00
Askateboard ramp is in the shape of a right triangle what is the height of the ramp
Answers: 3
question
Mathematics, 21.06.2019 22:30
Abag contains 10 white golf balls and 6 striped golf balls. a golfer wants to add 112 golf balls to the bag. he wants the ratio of white to striped gold balls to remain the same. how many of each should he add?
Answers: 2
question
Mathematics, 22.06.2019 00:30
If it 8 inch candle burns at 7/10 inch per hour and a 6 inch candle burns at 1/5 inch per hour after how many hours would both candles be the same height
Answers: 1
You know the right answer?
Isobel gives a puzzle to some people and records how long they take to solve it. Some of her results...
Questions
question
German, 11.06.2021 19:40
question
History, 11.06.2021 19:40
question
Mathematics, 11.06.2021 19:40
question
Business, 11.06.2021 19:40
question
Mathematics, 11.06.2021 19:40
Questions on the website: 13722363