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Korolek [52]
3 years ago
13

Unit Test Review

Mathematics
1 answer:
Mrrafil [7]3 years ago
6 0
825 miles to drive 15 hours
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Lucy is knitting a blanket and needs to buy some more yarn. at her local craft store, 2 skeins of yarn cost $7 and 8 skeins of y
laila [671]

Answer:

4

Step-by-step explanation:

Proportionality between skein values

8:2=4:1

Proportionality between cost values

28:7=4:1

The variation(both the skein values and cost values) has the constant of 4 ie the 1st skein value × 4= the last skein value & the 1st cost value × 4=the last cost value

7 0
2 years ago
In the context of correlational research, if there is no relationship between two variables, what is the correlation coefficient
mel-nik [20]

Answer:

The Correlation coefficient is 0

Step-by-step explanation:

3 0
2 years ago
Solve for n: 21 K - 3n + 9 p is greater than 3 p + 12
Digiron [165]

Answer:

n > p + 1 + 7k

Step-by-step explanation:

21k - 3n + 9 > 3p + 12

21k - 3n > 3p + 12 - 9

3n > 3p + 3

3n > 3p + 3 + 21k

n > (3p + 3 + 21k)/3

n > p + 1 + 7k

6 0
3 years ago
Josh has three shelves of soccer trophies there are five shelves
motikmotik
Do you mean he had 3 shelves and 5 on each? If so the answer is 15
3 0
3 years ago
Out of a total of 300 animals in the zoo, 45 are birds. What percent of animals in the zoo are birds
Ulleksa [173]
The answer above isn't right- lol.

15% of the animals in the zoo are birds.

[45/300 is .15, or 15%.]
4 0
3 years ago
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