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
netineya [11]
3 years ago
12

If you have an 81 for your 9 weeks grade but make a 70 on your exam whats going to be your final grade?

Mathematics
1 answer:
Ivan3 years ago
4 0
To do this you need the mean.
(81*9+70)/10 that is the mean equation.
Solve.
(799)/10
79.9
79.9% Will be your grade or a C
You might be interested in
Find the volume in the cylinder in terms of π (pi) and to the nearest tenth .
xenn [34]

Answer:

157 in(3)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Anna said that the product of 7/8 · 1 1/2 = 7/2<br><br>How can you tell that her answer is wrond?
Mazyrski [523]

Here is your answer:


1 1/2 = 3/2


7 × 3 = 21

8 × 2 = 16

Divided to equal 1\frac{5}{16} <--- Real answer:



The reason why she multiplied her answer wrong, she also "kept her original numerator and denominator."


Hope this helps!

5 0
3 years ago
Hi quick whats 18 x 1.25 <br> step by step !!
Ivan

Answer:

22.5

Step-by-step explanation:

125

x 18

---------

1. first set up your problem

2 4

125

x 18

------

1000

2. next multiply the 8 by 5 getting 40, drop the 0 anf move the 4 to the top above 2.

3. multiply 8 by 2 getting 16, then add the 4 you have ontop of the 2 to the 16 getting 20. Drop the 0 and bring the 2 over and place it above the one.

4. multiply 8 by 1 getting 8 then add the 2 above the 1 to 8 getting 10. Then put the ten infront of the tw zeros. 1000

125

x 18

--------

1000

0

Next add a 0 as a place filler under the 0 at the end.

125

x 18

-------

1000

1250

Then multiply the 1 by 5, then 1 by 2, then finnaly 1 by 1, getting you 1250.

1000

+1250

add together

getting 2250

then move 2 decimal places over to get 22.5

3 0
3 years ago
PLEASE ANSWER THIS QUESTION <br>Show that 4x – 7 is equivalent to 4(x - 1) – 3 when x = 3.​
Drupady [299]

Answer:

4(3) - 7 = 4(3 - 1) - 3

12 - 7 = 4(2) - 3

5 = 8 - 3

= 5

They are equivalent because when they are both simplified they have the same answer 5

7 0
3 years ago
Can somebody tell me what is 3x - 4 = 5?
lions [1.4K]

Answer:

x=3

Step-by-step explanation:

Move the -4 over to the other side.

3x=9

Divide both sides by 3.

x=3

4 0
3 years ago
Read 2 more answers
Other questions:
  • A can factory requires 2 sheets of metal to make 36 cans and 10 sheets of metal to make 180 cans. The proportionality constant b
    8·2 answers
  • Plaese help! been stuck on apex all day
    6·2 answers
  • I need this to be answered PLEASE!!!
    7·1 answer
  • The endpoints of AB are A(9,4) and B(5,-4). The endpoints of its image after a dilation ar A(6,3) and B(3,-3). a. explain how to
    14·1 answer
  • How? Please Help me ! And I will help others too
    7·2 answers
  • A while back, either James borrowed $12 from his friend Rita or she borrowed $12 from him, but he can’t quite remember which. Ei
    11·1 answer
  • For the following quadratic equation, find the discriminant.
    12·1 answer
  • Some angles are shown. Complete each of the 2 activities for this Task. Activity 1 of 2 The measure of angle NOP is 140°. Which
    13·1 answer
  • Kylie wants to add 10 to 167. She thinks that the 6 represents the number of tens and thats by adding a 10 there are a total of
    8·1 answer
  • A right triangle has a leg with a length of 18 and a hypotenuse with a length of 31 yards. Find the length of the other leg (nea
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!