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elena-s [515]
3 years ago
8

Fifty percent of students in your school own a bike. Of a sample of students in your school, the ratio of students who own a bik

e to students who do not own a bike is 4:8 does the sample closely estimate the percentage of students in your school who own a bike? Yes or no?
Mathematics
2 answers:
Svetradugi [14.3K]3 years ago
8 0

Answer:

Yes

Step-by-step explanation:

If 4 is half of 8, and 50% is half of 100%, then 4:8 is an accurate ratio depecting that half the school owns a bike.

Hatshy [7]3 years ago
4 0
The answer would be yes
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Mac's age is 3 years less than twice Joe's age. The sum of their ages is 30. Find their ages.
k0ka [10]

Answer:

Mac is 19 years old, Joe is 11 years old

Step-by-step explanation:

2J - 3 = M

J + M = 30

M = 30 - J

2J - 3 = 30 - J

3J = 33

J = 11

M = 30 - 11

M = 19

4 0
3 years ago
Solve each single-step equation. Show your work. -15+n=-9
Serggg [28]

Answer:

6

Step-by-step explanation:

-15+6 means it goes minus basically its 15-6(-15+6)=-9

3 0
3 years ago
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If 15 percent of the sixth graders have blonde hair, and there are 120 sixth graders, how many of them have blonde hair?
Vlada [557]
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3 years ago
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Bumek [7]
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5 0
3 years ago
Name the property or definition illustrated below
dimulka [17.4K]

Answer: Substitution

Step-by-step explanation:

GIVEN:

y=3x

2x+4y=12

Then, 2x+4(3x)=12

-----------------------------------------

Substitution: replacing one variable in terms of another variable.

As we can see from the given aspects, y=3x, and the conclusion expression has no y instead of 3x. This means it represented y in terms of x, which fits the definition of substitution that replaces one variable.

Hope this helps!! :)

6 0
3 years ago
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