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svp [43]
3 years ago
14

Mrs. Trout estimated her math class next year would include 28 students. The actual size of the class turned out to be 32 studen

ts. She calculated the percent error in the following way. 28 - 32 = -4 432 = 0.125% Is Mrs. Trout correct? Explain why or why not.
Mathematics
2 answers:
Alja [10]3 years ago
7 0
The answer she has is not correct.
 All the steps she did are correct, except they forgot to convert the decimal answer into the proper percentage by multiplying it by 100.

The correct answer should be 0.125 * 100 = 12.5%
Alik [6]3 years ago
5 0

Answer:

Mrs. Trout set up the ratio correctly, but she forgot to multiply by 100 to get the correct percent.

Step-by-step explanation:

This was the sample response on edge

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Can 12m, 35m and 37m make a right triangle
antoniya [11.8K]

Answer:

YES

Step-by-step explanation:

Explanation:

If this is a right triangle we can then substitute the sides of the triangle (12 and 35) and the hypotenuse (37) into the Pythagoras Theorem and the two sides of the equation will be equal. If this is not a right triangle the two sides of the equation will not be equal.

The Pythagoras Theorem is  

a

2

+

b

2

=

c

2

Substituting we get:

12

2

+

35

2

=

37

2

12

⋅

12

+

35

⋅

35

=

37

⋅

37

144

+

1225

=

1369

1369

=

1369

Because these are equal this is a right triangle.

3 0
2 years ago
Read 2 more answers
What is 78% of 50?????
Alecsey [184]
30 i the correct answer
6 0
3 years ago
Read 2 more answers
Jacob went on a fishing trip. This year he caught 30 fish, which is six more than twice the number he caught last year. How many
NARA [144]

Answer:

12 fish

Step-by-step explanation:

You need to work this problem backwards. If he caught 30 fish, which was six more than twice the number he caught last year, you would start by subtracting six, leaving you with 24. Then you'd have to divide by 2, because it was twice plus six as many fish, which would give you 12 fish.

\frac{30-6}{2} = x

\frac{24}{2} = x

12 = x

5 0
3 years ago
Use the distributive property to write the next step in simplifying the equation. Use the asterisk symbol (*) to represent multi
Maksim231197 [3]

Given:

The equation is:

x(4+5)=54

To find:

The next step in simplifying the equation by using distributive property.

Solution:

Distributive property: According to this property if a, b and c are three real numbers, then

a(b+c)=ab+ac

We have,

x(4+5)=54

Using the distributive property, we get

x(4)+x(5)=54

It can be written as:

4x+5x=54

Therefore, the next step of the simplification is 4x+5x=54.

5 0
3 years ago
Help me fast times-a-ticking
d1i1m1o1n [39]

No, because it has a constant rate of change

By looking at this table

The y value changes at a constant multiple of 2

6  4

7  2 (4-2 is a difference of 2)

8  0 (2-0 is a difference of 2)

9  -2 (0-2 is a difference of 2)

This means it is Linear

8 0
3 years ago
Read 2 more answers
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