Ns A book has 150 pages and you read 3 pages per day.(After a certain number of days, there
are 60 pages left. Which of the following equations represents the day, d, when there are
60 pages left?
by

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Ответ:

raam360

28.06.2022

Mathematics

The quantities used by Manuela were correct

Step-by-step explanation:

The question is

Did Manuela use the right quantities?

Let

x -----> the parts of oil

y ----> the parts of vinegar

we know that

The ratio of the parts of oil by the parts of vinegar of recipe is

$\frac{x}{y} =\frac{3}{1}\frac{oil}{vinegar}$

Determine the relation used by Manuela

$\frac{x}{y} =\frac{6}{2}$

Compare with the recipe

$\frac{3}{1} =\frac{6}{2}$

$3(2)=6(1)\\6=6$

Is true, the quantities are proportional

therefore

The quantities used by Manuela were correct

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Ns A book has 150 pages and you read 3 pages per day.(After a certain number of days, there are 60 pages left. Which of the following equations represents the day, d, when there are 60 pages left? by