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
posledela
3 years ago
15

Jose wants to have an average of 80 for his 4 exams. Each exam is scored on a scale of 0 to 100. His first three exam scores are

: 87, 72, 85. What does Jose need to score on the 4th exam to have a mean of 80 on all 4 exams?
Mathematics
1 answer:
Oxana [17]3 years ago
5 0

Answer:

76

Step-by-step explanation:

Assuming that all exams have the same weight, in order to achieve an average score of 80, the sum of all scores must equal 4 x 80. Therefore, the grade Jose needs in his last exam is:

87+72+85+x=4*80\\x=76

Jose needs to score a 76 in his last exam to have a mean of 80.

You might be interested in
The table below gives a record of variations of the values of y with the values of x. Draw a scatter plot for the data.
Paul [167]

Answer: taake this link,  it has all the answers

Step-by-step explanation:                 https://quizlet.com/183183758/statistical-studies-scatterplots-practiceamdm-flash-cards/

6 0
3 years ago
Read 2 more answers
What is 247,039 rounded to the nearest thousand
omeli [17]
Pretty sure the answer is 247,000
5 0
3 years ago
Read 2 more answers
A restaraunt has 1,600 milligrams and there’s gotta be 10 people how many grams do you need
natita [175]
You need 1.6 Grams. Hope this helped :P
8 0
3 years ago
NEED ANSWER ASAP PLEASE WILL GIVE BRAINLIEST An integer n is divided by 2 and the quotient is an even integer. What does this te
Nesterboy [21]

Answer:

n is a multiple of 4

Step-by-step explanation:

Let's think about this.

Even numbers are basically numbers that, when divided by 2, get us an integer.

This means that n must be an even integer.

<em>However,</em>

Every other even number, when divided by 2, gets you an odd integer.

This means that every second even number, n \div 2 gets us an even number.

This also means that every time n \div 2 is an even number, n will be a multiple of 4 (as 2\cdot 2 = 4).

Test this out with any even number that's a multiple of 4 (all multiples of 4 are even numbers)

Hope this helped!

4 0
3 years ago
Select a counter-example that makes the conclusion false.
Softa [21]
A counter-example could be

There are more than 3 marbles in the bag, and the other ones are red.

Hope this helps!
4 0
3 years ago
Other questions:
  • Which of the following is an extraneous solution of the square root of -3x-2=x+2
    6·1 answer
  • Pls can someone help me on this thank you
    15·3 answers
  • Simplify the expression below.
    7·1 answer
  • Which expression is equivalent to 63.56 + (–81.47)?
    11·2 answers
  • What is the surface area of this right rectangular prism with dimensions of 4 centimeters by 4 centimeters by 6 centimeters?
    5·1 answer
  • Matthew is making a sequence in which -3 is added to each successive term. The 6th term in his sequence is -1. What is the 1st t
    15·1 answer
  • Can someone give me the answer of the question b?
    14·1 answer
  • If y=56+7+8x find x​
    7·1 answer
  • X + 9 =20 x=___ help
    13·2 answers
  • plzzz help smart people, its math will mark branilyest (DONT ANSWER IF YOU DONT KNOW THIS TYPE OF MATH PLZZ SHOW WORK)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!