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jenyasd209 [6]
2 years ago
8

Amanda and Jessica bought vegetables for their newly opened restaurant. Amanda bought potatoes and onions. For every 18 pounds o

f potatoes that Amanda bought, she bought 4.5 pounds of onions. Jessica bought broccoli and onions. For every 18 pounds of broccoli that Jessica bought, she bought 4 pounds of onions.
If Amanda bought 60 pounds of potatoes last week, and Amanda and Jessica bought the same amount of onions, then how many pounds of broccoli did Jessica buy last week?
Mathematics
1 answer:
Korolek [52]2 years ago
7 0
First, we determine the number of onions bought by Amanda using the given ratio above,

      O1 = (60 lbs potato)(4.5 lbs onion/18 lbs potato)
       O1 = 15 lbs onions

This should also be the same as the amount of onions bought by Jessica. With this, we can then determine the amount of broccoli bought by Jessica given the ratios.

         B = (15 lbs onions)(18 lbs broccoli/4 lbs onions)
                 B = 67.5 lbs broccoli.

Answer: 67.5 lbs broccoli
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Answer:

it is decreasing in the time interval 0<x<2 hours.

Step-by-step explanation:

Graph of first line going through ordered pairs A(0, 40) and B(2, 10).

Graph of second line going through ordered pairs B(2, 10) and C(4, 10). Graph of third line going through ordered pairs C(4, 10) and D(7, 50).

When movement is from point A to B, change in x = 2 and change in y = -30

Hence change for unit x = -30/2 = -15 ... i

When movement is from point B to C, change in x = 2 and change in y = 0

Hence change for unit x = 0/2 = 0 ... ii

When movement is from point C to D, change in x = 3 and change in y = +40

Hence change for unit x = 40/7 = 5.71  .. iii

Hence from A to B it is decreasing, B to C it remains constant and C to D it is increasing.

x coordinate represents hours and y coordinate degrees.

Hence answer is it is decreasing in the time interval 0<x<2 hours.

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2 years ago
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The function of the trapezoid area is:

A(x)=(B+b)*h/2

Where B and b are the bases and h is the height.

With the given data: h=10 B and b =7 and x (it may vary which one is bigger)

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So that function becomes:

A(x)=(7+x)*10/2

A(x)=(7+x)*5

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So if you want the inverse function, you have to operate to find x:

A(x)/5=7+x

A(x)/5-7=x

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So the new function is:

x(A)=A/5-7

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Answer: C

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Answer:

I hope this image and explanation helps you!

Step-by-step explanation:

All students in the eighth grade were surveyed, so we can make the valid conclusion that 18% of all students in the eighth grade at Lincoln Junior High School have pancakes as their favorite breakfast.

However, the question did not ask about the students' favorite meal of the day, so we cannot draw any valid conclusions about the students' favorite meal.

The valid conclusion:

18% of all students in the eighth grade at Lincoln Junior High School have pancakes as their favorite breakfast, but we cannot conclude anything about the percent of the population who have breakfast as their favorite meal.

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