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
maks197457 [2]
3 years ago
12

Jeannie's scores on her first four tests were 80, 65, 87, and 75. What will

Mathematics
1 answer:
Ivan3 years ago
6 0
She will have to score 93.
(80+65+87+75+x)/5 = 80
307+x = 400
x =400-307=93
Another way, easier to do in your head:
Notice that 65 is 15 below 80, 87 is 7 above 80, and 75 is 5 below 80. The overall situation is 13 below 80 (because -15+7-5=-13). For a number to push the average back to 80, it must be 13 higher than 80. 80+13=93
You might be interested in
Chase works as a welder making $21.50 per hour. He works 40 hours.
m_a_m_a [10]
What is his net weekly pay?
5 0
2 years ago
Read 2 more answers
A building 50 feet high casts a shadow 68 feet long. Find the measure of the angle of elevation of the sun. Round answer to near
Vedmedyk [2.9K]

Answer:

36 °

Step-by-step explanation:

In this case a rectangular triangle is formed so we can use the trigonometric functions to calculate the angle, they give us the value of the two legs, therefore we can apply the tangent function.

Tan A ° = opposite / adjacent

replacing:

Tan A ° = 50/68

Tan A ° = 0.735

A ° = arc tan (0.735)

A ° = 36.32

Which means that the angle of inclination is 36°

4 0
3 years ago
Factor of 3x-3a+xy-ay
Pachacha [2.7K]

Answer:

(3 - y) & (x - a) are the factors

Step-by-step explanation:

3x-3a+xy-ay

=> 3x - xy - 3a - ay

=> x(3 - y) - a(3 - y)

=> (3 - y)(x - a)

8 0
3 years ago
Read 2 more answers
How to put 1.3, 1 1/3, 1.34 in order from least to greatest
Natasha_Volkova [10]
11/3, 1.3, 1.34 Is the correct way to put it. PLZ give me the Brainliest answer. :)
7 0
3 years ago
Read 2 more answers
What’s the answer??????????
LUCKY_DIMON [66]
The ans is: 
cos 20 =x/80
x=75.2
8 0
3 years ago
Other questions:
  • If a five digit number is rounded to the ten thousands place is it possible for the rounded number to be a six digit number.
    15·1 answer
  • A quiz has 8 multiple choice questions and 4 options for each. How many ways are there to answer the questions
    14·1 answer
  • Find the 70th term of the following arithmetic sequence.<br><br> 12,17,22,27,...
    14·2 answers
  • What is the volume of a 6.5 ft sphere
    13·1 answer
  • Cody donated $15 to the local Humane Society his brother donate at four dollars less than twice the amount that Cody donated how
    8·1 answer
  • Does this image have a vertical reflection, horizontal reflection, and rotation? I'll give brainiest!
    10·1 answer
  • Twice Jaden's age is equal to 3 times his age minus ten. How old is Jaden? Write only his age.
    12·1 answer
  • (Ill give brainliest if ya help me :D)
    11·1 answer
  • Please help I WILL GIVE BRAINLIEST
    6·1 answer
  • Atasha jumped 2 1/5 meter in a long jump competition. Arya jumped 1 2/3 meter. Who jumped longer and how many meters?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!