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8th GL 2.1 LC: Post Secondary Proportions- Melle

Last updated about 2 years ago
7 questions

Enter numeric values only. Do NOT enter units.

Answers that contain fractions should be in simplest form.


Melanie collects coins from all over the world.

She is reorganizing her collection into coins from Europe and coins from other parts of the world.

After sorting the coins, she comes to the conclusion that 6 out of every 10 of the coins in her collection come from Europe.
Required
1

If she has 230 coins in her collection, how many coins are from Europe?

Required
1

If she has 450 coins,
how many are NOT from Europe?

Meghan is sorting through donations she received at the thrift store.

She determines that for every 3 pieces of adult clothing she receives 9 pieces of children’s clothing.

How many adult’s items, y, are there for x number of children’s items?


Required
5
Complete the table to represent this relationship.
Other Answer Choices:
3
148
54
42
108
66
6
0
12
72
Required
1

Write an equation to represent this relationship.

y = kx

A recent survey at PetPlus shows that five out of every seven of their customers' pets are dogs.


Required
2
The constant of proportionality (k) for y1 is _______ .

The constant of proportionality (k) for y2 is _______ .
A car dealership notices that two out of every six vehicles for sale is grey.

Required
2
The equation for y1 is _______ .

The equation for y2 is _______ .

y = kx
Required
1

Given y varies directly with x, if y = 15 when x = 5.

Calculate the value of y when x = 20.