1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Thepotemich [5.8K]
3 years ago
14

Supposed Blue spruce was included in the list and the mean decreased to 165 what is the height of the Blue spruce?

Mathematics
2 answers:
postnew [5]3 years ago
7 0
The height of the blue spruce was 45.

We find the mean by adding all of the data points and dividing by the number of data points.  We will add the unknown value x and change the number we're dividing by to 7:

(160+320+100+110+200+220+x)/7 = 165
(1110+x)/7 = 165

Multiply both sides by 7:
1110 + x = 1155

Subtract 1110 from both sides:
x = 45
Alchen [17]3 years ago
6 0
The height of the Blue Spruce would be 45 feet.

If you add all of the value right now,  you will have 1110.

With the addition of the Blue Spruce, we will have 7 trees. If we multiply the new mean of 165 by 7, we get 1155. This is the amount we need to have the correct mean.

Subtract to find the difference needed by the Blue Spruce.

1155 - 1110 = 45
You might be interested in
Solve for x in 4x-4/x+4=10
Amiraneli [1.4K]

Answer:

-22/3 =x

Step-by-step explanation:

(4x-4) /(x+4) = 10

Multiply each side by (x+4)

(4x-4) /(x+4) * (x+4) = 10 * (x+4)

(4x-4) = 10 * (x+4)

Distribute

4x-4 = 10x+40

Subtract 4x from each side

4x-4-4x = 10-4x+40

-4 = 6x+40

subtract 40 from each side

-4 -40 = 6x+40-40

-44 = 6x

Divide each side by 6

-44/6 = -6x/6

-22/3 =x

4 0
3 years ago
Explain the areas in which you will find integration to be significant in your day to day work as an EHT.
andrey2020 [161]

Answer:

Step-by-step explanation:

An EHT is an Environmental Health Technician. Integration (Integral Calculus, if that's what you mean) will be applied to an Environmental Health Technician's job in the following way:

1. In the analysis or examination of samples from an environment, such as soil sample, water sample, domestic waste sample, septic waste sample, etc.

Essentially, Integral Calculus (and other forms of Maths) must be studied, before a person is able to be an Environmental Health Technician.

Degrees in any of the following fields are a necessary criterion;

- Applied Science

- Public Health

- Environmental Science

- Biochemistry

- Health Data Analysis

7 0
3 years ago
Find an equation of the plane that is parallel to the line of intersection of the planes ( x + 3y + z = 3 ) ( 3x - y - z = 0 ) a
NeTakaya

Answer:

Wow I got the first step

are you looking for the

intersection of the line perpendicular

to plane 1 thorough the origin and plane 2

for the first part???

7 0
3 years ago
BRAINLIEST! :3<br> How much is a $15 tip with the meal costing $18?
VARVARA [1.3K]
With the meal costing $18 and the tip being $15 the total will be $33
4 0
3 years ago
Please select the best answer thanks
Tasya [4]
I need a correct answer of Edith each sentence for pronoun usage.
1.  The instructor made clear to everyone what they had to do to pass the class.
2. Marcie signed up for advanced classes without consulting her advisor, which was a big mistake.
3. The computer did not allow access to students which tried to register before registration opened.
4. Many people shy away from the old because they think of it as being senile and withered.
5. It did not get above freezing today, so it is still too dangerous to drive on the back roads.
6. We always wait until the day before Christmas to buy a tree because they are discounted by then.
7. To end the strike, the union approved the agreement and told their members to go back to work.
8. Everybody agreed to do the maintenance ourselves rather than pay someone to do it.
9. Physical activity is good for you, but people lack the discipline to exercise as much as they should.
10. Mr. Roberts told his son that he didn't know to dance.


4 0
4 years ago
Other questions:
  • Several properties are used to evaluate this expression. Identify the property used in each step.
    7·2 answers
  • WHEN LOGARITHMIC FUNCTIONS ARE GRAPHED WHICH TRANSFORMATION WILL RESULT IN A Y INTERCEPT?
    13·2 answers
  • Which is a factor of 2x^2- 12x- 14
    7·1 answer
  • Help with number 5 plzzz
    6·2 answers
  • 4th grade math. Need help
    12·2 answers
  • Decide which of the two given
    13·1 answer
  • What is 62.5% of 1/5?
    12·2 answers
  • A number n is 13 less than a second number, and the second number is 10 more than a third number. If the third number is 54, wha
    11·2 answers
  • A circle has a radius of 8x^6y^4 cm . The area of a circle can be found using a= πr2. What is the area of this circle in square
    5·1 answer
  • Please help fast! I only want correct answers. Random answers will be reported.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!