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
oksano4ka [1.4K]
4 years ago
14

A student has earned the following scores on four 100-point tests this marking period: 63, 72, 88, and 91. What score must the s

tudent earn on the fifth and final 100-point test of the marking period to earn an averagetest grade of 80 for the five tests?
Mathematics
1 answer:
solmaris [256]4 years ago
5 0
In order to have average 80 score from 5 tests, student needs to have 400 points (80%*500=0.8*500=400)
So far he has 63+72+88+91= 314
400-314=86

He needs to get 86 points from the last test.
Since he is obviously getting better at tests, i think he'll manage :)


You might be interested in
What is the domain of f(x)=
mars1129 [50]

Answer:

(c) all real numbers

domain of f(x)= x is the whole of real numbers R.

8 0
3 years ago
A, B & C share the rent in a ratio of 4:3:2. The rent is £216. How much does A pay?
zysi [14]
If the ratio is 4:3:2 each part of that ratio has a value of:

216/(4+3+2)

216/9=24

Since A pays four parts, 

A pays 4*24=£96
5 0
3 years ago
Read 2 more answers
What is the area of each shaded region? Use 3.14 for pie. PLS help this is due tonight
AnnZ [28]

Answer:

Step-by-step explanation:

do this is 2 parts

total = square + 1/2 circle

area of a square is side * side or  ... b/c the sides of a square are the same 2* side

area of a circle is Pi* r^2

total area = 12*12 + 1/2 * pi * 6^2

ta = 144 + 56.52

ta = 200.52  

ta da.. :P    total area is 200.52 ft^{2}

6 0
3 years ago
Simplify 5 2 thirds
erica [24]
Answer= 2/3
5 2/3= multiply 5x3=15, then 5x2=10 which makes the fraction: 10/15, simplify by finding the highest common denominator that divides 10 & 15 equally, which would be 5,
5 divided into 10 is 2. 5 devided into 15 is 3 which makes your answer, 2/3.
not 100%, but it makes sense to me...
8 0
3 years ago
Read 2 more answers
What is the quotient for the following expression? (2x^3-5x^2-4x-25)/(x-4)
cestrela7 [59]

Answer:

i hope that funtion you

Step-by-step explanation:

2x3−5x2−4x−25

x−4

=

2x3−5x2−4x−25

x−4

4 0
4 years ago
Other questions:
  • Calculate the mean, median, and mode of the following set of data. Round to the nearest tenth. 10, 1, 10, 15, 1, 7, 10, 10, 1, 6
    9·1 answer
  • 2 less than the product of w and 5
    15·1 answer
  • When tossing two dice, find the probability of rolling a sum greater than 7?
    10·1 answer
  • How do you write words to match the expression 24-(6+3)
    6·2 answers
  • If you make 1170 points out of 1800 what grade would I have​
    13·1 answer
  • A fair dice is rolled. Work out the probability of getting a number more than 5. Give your answer in its simplest form.
    13·2 answers
  • Kyle is determining any common multiple for 6 and 45. Which number could be the multiple?
    9·2 answers
  • OFFERING 20 PTS. PLEASE HELP ASAP!
    6·2 answers
  • Explain how to find the value of y in the equation 6(y+4)=12
    9·2 answers
  • Evan is going to the 50th state fair this weekend, it cost $10 to enter and each ride is $2. Create a linear function that could
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!