Calen correctly wrote the equation y-3=1/5(x-10) to represent a line that Mrs. Adams sketched. Mrs. Adams then changed the line
2 answers:
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Answer:
20 mangoes.
Step-by-step explanation:
Given:
Total number of mangoes, a trader bought =
A trader bought at the rate of 4 mangoes for 10 naira.
Five of the mangoes were bad.
He sold the remaining at the rate of 5 mangoes for 20 naira.
He made a gain of 10 naira
Question asked:
Total number of mangoes, a trader bought = = ?
Solution:
Unitary method
Cost price of 4 mangoes = 10 naira.
Cost price of 1 mango =
Cost price of mango =
As 5 of the mangoes were bad and he sold the remaining mangoes, then Total number of mangoes sold =
Sale price of 5 mangoes = 20 naira
Sale price of 1 mango =
Sale price of mango =
Now, as we know,
Adding both sides by 20
Multiplying both sides by 2
Dividing both sides by 3
Therefore, total number of mangoes, a trader bought is 20.
Number 1 is 2 because first you find out how many times 42 goes into 84 so you do 42x1, 42x2 and so on until you can't do anymore without going over 84 so 42x2 is 84 exactly so you put the two on top of the "house" above the 4 and put 84 under 84 then subtract 84-84=0 so you don't continue dividing and the number on top of the "house" is the answer
