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
sergeinik [125]
3 years ago
15

David has scored 81 , 87 , 69 , and 82 on his previous four tests. what score does he need on his next test so that his average

(mean) is 82 ?
Mathematics
1 answer:
kvv77 [185]3 years ago
7 0
91 so the mean can avrege out to 82
You might be interested in
Find the solution to each equation mentally or use your calculator. (Hint: do the opposite of the number on the left side of the
il63 [147K]

Answer:

A. 10

B. 300

C. -3

D. -3,567

Step-by-step explanation:

im pretty sure this is coreect i apologize if not

3 0
3 years ago
Two angles of a quadrilateral are 40 degree and 60 degree and the ratio of remaining two angles is 7:6. The degree measure of re
Semenov [28]

Answer:

140,120

Step-by-step explanation:

sum of angles in a quadrilateral =360

sum of the 1st two angles=60+40=100

360-100=260

the ratio of the remaining angles 7:6

therefore:

\frac{7}{13}  \times 260

=140

for the second angle

260-140=120

5 0
3 years ago
Explain pls and thanks
murzikaleks [220]

Starting more simply, if we wanted to know how many students like pink in general, that's 68/100. We could do that for each single category and the fractions would add together to equal 1. Now say we wanted to know something about that 68/100 people. That 68 is our new 100%, or another way of looking at it is if we take however many people like pink and don't like black and those that do like black, they will equal 68/68.

The number of people that like pink but don't like black is 41/68 and those that like pink and black are 27/68. 27+41=68 For the question of your problem it is asking about those that do not like pink which you can tell from the table or use from my saying 68/100 like pink is 32. Now you can split that into those that do or don't like black, and the two results will equal 32/32.

7 0
3 years ago
Point m is the midpoint of ab¯¯¯¯¯ . am=3x+3, and ab=8x−6. what is the length of am¯¯¯¯¯¯ ?
LuckyWell [14K]
As given m is a midpoint of ab. So am is half of ab.

So we can write

am =  \frac{ab}{2}

As given am = 3x+3 , ab = 8x - 6.

So 3x+3 = \frac{8x - 6}{2}

3x+3 =  \frac{2(4x - 3)}{2}

3x+3 = 4x - 3

3+3 = 4x - 3x


6 = x

So x = 6.

So length of am = 3x+3 = 3*6 + 3 = 21
5 0
3 years ago
Write the fraction 7/10 as a sum of fraction three different ways
LUCKY_DIMON [66]
A . 2/10 + 5/10= 7/10
B. 3/10 + 4/10= 7/10
C. 6/10 + 1/10 =7/10
4 0
4 years ago
Other questions:
  • Can someone simplify 8.4 for me
    7·1 answer
  • 24 + 6a + b +3a + b + 3a
    11·1 answer
  • Ked
    14·1 answer
  • The ratio of pens to
    8·1 answer
  • A farmer is tracking the number of soybeans his land is yielding each year. He finds that the function f(x) = −x2 + 20x + 100 mo
    8·1 answer
  • Anyone help,easy questions ,10 points !!!
    15·1 answer
  • Use the next to find the approximate surface area of the cylinder to the nearest square meter.
    13·1 answer
  • Write it as a mixed number please
    5·2 answers
  • Which of the following relations is a function?
    11·1 answer
  • Type the expression that results from the following series of steps:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!