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
Novosadov [1.4K]
3 years ago
5

Brian scored 92, 87 and 88 on three science tests. Write and solve an equation to find the score Brian will need on the fourth s

cience test so that the mean test score is 90.
Mathematics
1 answer:
Marta_Voda [28]3 years ago
3 0

Answer:

You would need to score a 93% to have an average of 90.

Step-by-step explanation:

Well, to check my work you would need to find the average.

So, 93 + 92 + 88 + 87 = 360. Then you divide by four; 360 / 4 = 90. ^^

You might be interested in
4. Solve. x² – 81 = 0 (1 point) 0 –9 –9, 9 9
Rudik [331]

x^2 - 81 = 0. Add 81 to each side.

x^2 = 81. Take the square root of each side.

x = 9, -9

5 0
3 years ago
Read 2 more answers
Which arc is a minor arc? <br><br> SQ<br><br> PSR<br><br> PS
laila [671]

Answer:

probably would say PS would be your best

4 0
3 years ago
Mia has a rectangle shape brownie. She cuts the brownie into 3 equal pieces.Which sentence is true ?
MAXImum [283]

Answer:

The whole brownie is 3/3

Step-by-step explanation:

Hello!

This is a classic fractions exercise.

The whole brownie was cut in three equal pieces. Each piece represents 1/3 of the brownie.

If you add the three pieces together 1/3+1/3+1/3 you get the whole brownie again 3/3 = 1

-Options-

The whole brownie is 1/3.

<em>The whole brownie is 3/3. </em>

The whole brownie is 2/3.

The whole brownie is 3/2.

I hope this helps!

4 0
3 years ago
100x^2-4=0<br> quick pls with all work
Finger [1]
4(5x+1)(5x-1) = 0

1. Take out the GCF (in this case, 4)
4(25x^2-1) = 0

2. This can be further factored. Factor the values within the parenthesis
4(5x + 1)(5x -1) = 0

4 0
2 years ago
Read 2 more answers
Jalen and his 2 brothers each ate 3/4 of a cupcake. How many cupcakes did they eat altogether?
Luda [366]

The answer is 2 1/4 cupcakes

3 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone please help me i would just need the answer
    14·1 answer
  • The diagonals of a rectangle must____.
    5·1 answer
  • What is the approximate value of x in the equation below. log3/4 25=3x-1
    14·2 answers
  • Which set of ordered pairs does not represent a function?
    13·1 answer
  • 7/10 + 1/2 Find sum in simplest form
    10·2 answers
  • HELP PLEASE
    12·2 answers
  • Solve the system of equations. -5x - 12y - 43z = -136 -4x - 14y - 52z = -146 21x + 72y + 267z = 756
    12·1 answer
  • A marketing consultant observed 40 consecutive shoppers to estimate the average money spent by shoppers in a supermarket store.
    10·1 answer
  • Jamie King wants to buy a new car in 5 years. Jamie
    5·1 answer
  • 1.) With which kind of triangles can you always use the Pythagorean<br> Theorem?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!