Quizzes & Puzzles6 mins ago
Help please with 2 equations...
1. Jacky joins a video club.
She has to pay a membership fee and then 2 quid for each video she rents.
a) write this as a formula in words.
b) work out the total amount Jacky will pay if the memebership is 5 quid and she rents 15 videos.( is this 15 x 2 +5= 35 quid?)
2. The instructions for cooking a turkey are " allow 45 minutes for each kg the turkey weighs, then add another 30 mins"
a) copy and complete this formula in words:
time to cook a turkey =
b) how many minutes will it take to cook a turkey weighing 10 kg?
She has to pay a membership fee and then 2 quid for each video she rents.
a) write this as a formula in words.
b) work out the total amount Jacky will pay if the memebership is 5 quid and she rents 15 videos.( is this 15 x 2 +5= 35 quid?)
2. The instructions for cooking a turkey are " allow 45 minutes for each kg the turkey weighs, then add another 30 mins"
a) copy and complete this formula in words:
time to cook a turkey =
b) how many minutes will it take to cook a turkey weighing 10 kg?
Answers
Best Answer
No best answer has yet been selected by piggynose. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.you would´nt beleive it, but i was top of my class in maths about 40 years go, you ask what happened? looks like i´ve totally forgotten everything.
I´m trying to review maths by looking at a modern book. its embarrassing.
i even thought the turkey question was 10 x 45+30 = 750 mins, until i discovered a new formula, BIDMAS. now things are slightly clearer.
I´m trying to review maths by looking at a modern book. its embarrassing.
i even thought the turkey question was 10 x 45+30 = 750 mins, until i discovered a new formula, BIDMAS. now things are slightly clearer.
That's why the brackets are important, scotmans answer should really be
P=F+(2*N)
With the brackets showing you work the part out inside them first, in your example the correct answer to the first part is
5+(2*15)=35
without the brackets somebody might work the same sum out as
(5+2)*15=105
(either that or use Reverse Polish Notation, which I use on the calculator I use are work sometimes)
P=F+(2*N)
With the brackets showing you work the part out inside them first, in your example the correct answer to the first part is
5+(2*15)=35
without the brackets somebody might work the same sum out as
(5+2)*15=105
(either that or use Reverse Polish Notation, which I use on the calculator I use are work sometimes)
I don't understand what your comment means, piggynose. Changing the term BODMAS to BIDMAS makes absolutely no difference to how we get the answer to these problems.
I don't think we even need to think about BIDMAS/BODMAs here.
For example in question 2 if every kg needs 45 minutes then you simply multiply the weight in kg (10) by 45 to give 450 minutes. Then add on another 30 minutes. That gives you 480 minutes (6 hours)
I don't think we even need to think about BIDMAS/BODMAs here.
For example in question 2 if every kg needs 45 minutes then you simply multiply the weight in kg (10) by 45 to give 450 minutes. Then add on another 30 minutes. That gives you 480 minutes (6 hours)