dedgefield
14.06.2020 •
Mathematics
Mrs. Hunt bought 6 spools of thread. Each spool of indigo thread is 10 metres long and each spool of red thread is 4 metres long. If Mrs. Hunt bought 30 metres of thread in total, how many rolls of each colour did she buy?
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Ответ:
Step-by-step explanation:
Total spools of thread bought by Mrs hunt = 6spools
Indigo thread = 10m long
Red thread = 4m long
If Mrs. Hunt bought 30 metres of thread in total, this means she can only buy 1 indigo thread not 2 in order to be able to buy equal amount of red thread without any left over length.
Since 1 indigo thread = 10m,
remaining meter of thread left = 30m - 10m = 20m metres
This means she has 20metres of red thread to buy.
Since 1 red thread = 4m
x red thread = 20m
Cross multiplying;
x * 4 = 20
x = 20/4
x = 5
This means she can buy 5 red threads with the remaining metres of thread.
In total Mrs. hunt bought 1 indigo thread and 5 red thread
Ответ:
The answer is i think -12*2
Step-by-step explanation: