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2 years ago

Is number 19 correct

Mathematics

2 answers:

olganol [36]2 years ago

8 0

Yes it is. Hope it helps.:)

levacccp [35]2 years ago

5 0

Yes, number c is correct. Good Luck!!

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Banneker Middle School has 750 students. Lynn surveys a random sample of 50 students and finds that 27 of them have pet dogs. Ho

Alika [10]

Answer: 405 students

Step-by-step explanation:

From the question, Banneker Middle School has 750 students and we are told that Lynn surveys a random sample of 50 students and finds that 27 have pet dogs. The number of students at the school that are likely to have pet dogs goes thus:

Since out of 50 students surveyed, 27 have pet dogs, this means we multiply the fraction by 750. This can be mathematically written as:

= 27/50 × 750

= 27 × 15

= 405

This means 405 students are expecting to have pet dogs.

3 0

3 years ago

What is the average rate of change from x = −3 to x = 3? (1 point)

adoni [48]

Answer:

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Step-by-step explanation:

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5 0

3 years ago

Solve in PEMDAS: 3 + [2 + 3 X (6 X 3)]

sladkih [1.3K]

The answer should be 59

3 0

2 years ago

24/10 into hundredths

dalvyx [7]

Answer:

240/100

Step-by-step explanation:

just multiply 24 by 10 to get hundredths

6 0

2 years ago

The heights of a maple tree and a cherry tree have a ratio of 5:2. If the maple tree grew 20 cm and 20 cm was cut off the top of

elena-14-01-66 [18.8K]

Let x be the heights of a maple tree and y be the height of the cherry tree.
We know:
 $\frac{x}{y} = \frac{5}{2}$
The new ratio is obtained like this:
 $\frac{x+20}{y-20} = \frac{3}{1}$ .
From the above equation we get $x= (y-20)\frac{3}{1} -20$ .
then $\frac{ (y-20)\frac{3}{1} -20}{y} = \frac{5}{2}$
Solving the above equation for y we get: $y=160$
So $x=400$
So the first tree is (400-160=240) more taller than cherry tree.

7 0

3 years ago