aloading6574

31.03.2021 • 

Mathematics

A nutritionist has designed an intervention to motivate parents of preschool children to provide more fruits and vegetables to their children. To study the effectiveness of this intervention, the
nutritionist will conduct an experiment in which half of the selected study participants will receive
the intervention and the others will not. Study subjects will be recruited from families with children
who receive medical care for their children through the university health center. The nutritionist will
compare the amount of fruit consumed per day by the children in families who received the
intervention and by those who did not. Which of the following is true?

Ответ:

therealdest

09.11.2020

Mathematics

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Number of small boxes shipped = 10

Number of large boxes shipped = 12

Step-by-step explanation:

Let x be the number of small boxes

and

y be the number of large boxes

According to the first statement, a total of 22 boxes were shipped

Equation 1 will be:

x+y=22

And

According to 2nd statement, Total weight was 1350 and we know the weight of one small box is 45 and large box is 75

So equation 2 will be:

45x+75y=1350

We will use the substitution method for solving the equation

So from equation 1

Putting the value of x in eqn 2

Putting the value of y in eqn 1

So,

Number of small boxes shipped = 10

Number of large boxes shipped = 12 ..

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