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
agasfer [191]
3 years ago
15

A student has an average of 78 on seven chapter tests. If the student's scores on six of the tests are 76, 74, 76, 80, 83, and 9

1, what was the score on the remaining test? 80 66 78 79
Mathematics
1 answer:
zhenek [66]3 years ago
4 0

Answer:

The score is 66

Step-by-step explanation:

Say the unknown score is x

Average = Total score/no of occurrence

78 = (x + 76 + 74 + 76 + 80 + 83 + 91)/7

78 × 7 = x + 76 + 74 + 76 + 80 + 83 + 91

546 = x + 480

546 - 480 = x

66 = x

∴ x = 66

You might be interested in
X+56=88 what would x be???
Vanyuwa [196]

Subtract 56 from both sides to get


x+56-56=88-56


x=88-56



x=32

3 0
3 years ago
Read 2 more answers
If it takes 30 minutes to fill a 750000 cm3 (cubed) pool
Gala2k [10]
Step 1: Find out how many cm3 is filled in a minute.
750000/30 = 25000cm3 per minute
Step 2: Find out how many minutes it takes to fill 1200000cm3.
1200000/25000 = 48 minutes

Answer: 48 minutes
5 0
3 years ago
Read 2 more answers
Please help me! I’ll name you brainiest!!!
Kamila [148]

Answer:

80

Step-by-step explanation:

first, put in (5x-4) for the x in g(x).

g(f(x))=(5x-4)^2 -1

now, FOIL and simplify.

25x^2-40x+16-1

25x^2-40x+15

now, plug in -1 for x.

25(-1)^2-40(-1)+15

25+40+15

80

8 0
3 years ago
Read 2 more answers
What is the area of the actual square window shown in the scale drawing?
larisa86 [58]

The area of the actual square window = 2.25 m².

<h3>Scale Drawing</h3>

Scale drawing relates the actual length of an object to its length on a paper.

Given a scale of 1 in = 2 m, it means 1 in on paper is about 2 m of the actual length of the object.

Thus:

  • Length on scale drawing = 0.75 in
  • Actual length = x

Therefore:

1/2 = 0.75/x

  • Cross multiply

x = 1.5 m

Area of the actual square window = 1.5² = 2.25 m².

Learn more about scale drawing on:

brainly.com/question/25324744

5 0
2 years ago
D
spin [16.1K]

Answer:

AAS

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Find the x-intercept for the line represented by this equation.
    14·1 answer
  • 55745 rounded to the nearest thousand
    11·2 answers
  • 3/5 of your job is completed. What fraction of the job remains to be done?
    13·2 answers
  • There are 8 pencils in a package. How many packages will be needed for 76 children if each child gets 10 pencils ?
    13·2 answers
  • James wants to go to the Texans football game. A ticket costs $79.50 plus tax. The tax rate is 6%. What is the total purchase pr
    13·1 answer
  • A class survey in a large class for first-year college students asked, “About how many minutes do you study on a typical weeknig
    13·1 answer
  • Please help if u can
    13·2 answers
  • Which of the following best describes the expression 7(y + 5)?
    8·1 answer
  • The ratio of black marbles to red marbles is 3:2. If there are a total of 25 marbles in a bag,
    5·2 answers
  • PLEASE HELP FAST
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!