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
elena-14-01-66 [18.8K]
3 years ago
7

In order to get a A in his math class, a student needs to get an average of a 95 on four tests. He scored a 94, 89, and a 98 on

his first three tests. What score does he need on his fourth test to earn the A? Define the variable, write and solve an equation, and answer the question.
Mathematics
1 answer:
liq [111]3 years ago
6 0

Answer:

99

Step-by-step explanation:

let x be the score in his fourth test.

average is calculated as

average = \frac{sum}{count} , thus

\frac{94+89+98+x}{4} = 95 ( multiply both sides by 4 )

281 + x = 380 ( subtract 281 from both sides )

x = 99

He needs a score of 99 on his fourth test.

You might be interested in
Compare rational numbers what is bigger 4.9 vs 4.6
slamgirl [31]
4.9 is the larger number. Another way to write this is: 4.9 \ \textgreater \  4.6
7 0
4 years ago
Form a polynomial whose zeros and degree are given. Use a leading coefficient of 1.
Vitek1552 [10]

Answer:d

Step-by-step explanation:

4 0
3 years ago
What is the sum of a rational and irrational number ?
statuscvo [17]
Hello I hope this helps.
The sum of a rational number and an irrational number is irrational." By definition, an irrational number in decimal form goes on forever without repeating (a non-repeating, non-terminating decimal). By definition, a rational number in decimal form either terminates or repeats.
3 0
4 years ago
Read 2 more answers
Can someone help me with this? Please and thank you!
sergiy2304 [10]

Answer:

She should find the squares between 4.2 and 4.3

Step-by-step explanation:

The square of 4.2 was too low and the square for 4.3 was too high so the answer is between the two.

5 0
3 years ago
What is 4 ÷ 3/5 ?<br> 6<br> 6 and two-fifths<br> 6 and two thirds<br> 8
elena55 [62]
The correct answer is C-6 and two thirds
6 0
3 years ago
Other questions:
  • In 7-10, write two decimals that are equivalent to the given decimal.
    9·1 answer
  • WILL GIVE BRAILEST Line segment AB is congruent to line segment CD. Which of the following is an equivalent statement? AB overba
    5·1 answer
  • 7,300 at 7% compounded semiannually for 3 years.
    7·2 answers
  • How to write 7/14 - 2/7 in simplest form
    12·2 answers
  • Directions: Write each equation in slope intercept form (y = mx + b)
    11·1 answer
  • 5. Ryan Just bought 10 gallons of gasoline, the amount of fuel used for the last 355 miles of driving. Being a curious sort , Ry
    13·1 answer
  • You want to buy some noodles. There are 3 options; 1 a 6-ounce package cost 1.86, 2 a 14-ounce package cost 4.20, 3 a 26-ounce p
    12·1 answer
  • Please help mi i really need it XD
    14·1 answer
  • What does u equal in 4/5u=8
    15·2 answers
  • Sally ate lunch at a restaurant.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!