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
pychu [463]
3 years ago
14

The average of Manny's three tests is an 84. What must he get on a 4th test to raise his averageto a 87?

Mathematics
1 answer:
Ad libitum [116K]3 years ago
6 0

90 because 84 plus 90 divided by 2 is 87.

You might be interested in
Sean is a bookworm on average he reads 1 1/2 pages in 3 1/3 min. Sean's average unit rate is?
kiruha [24]
<span>1 1/2 = 3/2

3 1/3 = 10/3

3/2  /   10/3    = 3/2 x 3/10 = 9/20

answer
unit rate = 9/20 pages per minute</span>
7 0
3 years ago
Read 2 more answers
Find the areas of the trapezoids.
IceJOKER [234]

Answer:

30 units^2

Step-by-step explanation:

The area of a trapezoid is

A = 1/2 (b1+b2)h

The scale is 2 units per line

b1 = 2 units

b2 = 8 units

h = 6 units

A = 1/2 ( 2+8) * 6

   = 1/2 (10)6 = 30 units^2

5 0
3 years ago
The area of a square is 321 square feet. Which best represents the length of a side?​
sdas [7]
The side length is about 17.916

7 0
2 years ago
108 - 271 + 215-_____= -103
kupik [55]
108-271+215-_____=-103
Im going to combine the first thee numbers and replace the blank with a variable, lets use x. 
52 - x=-103
now I am going to subtract 52 on both sides to get the variable alone
-x=-155
Im going to multiply both sides to eliminate the negitive in the variable
x=155
If you want to check just plug 155 into the blank
108-271+215-155=-103
-163+215-155=-103
52-155=-103
-103=-103

so after checking work the blank is equal to 155.


5 0
3 years ago
Eric wrote the number 57,378. How many
melisa1 [442]
It is one hundred times greater, 7000= 70 x 100
7 0
3 years ago
Other questions:
  • The sum of 3 fifteens and 4 twos
    7·2 answers
  • Please help due today
    5·2 answers
  • I need help ASAP. Will give 20 points :0 It may look easy, but it's really hard for me
    15·2 answers
  • Which graph shows the solution set of the inequality 29(x+8) &lt; 26.19<br> 10<br> HELLLLP
    5·1 answer
  • Which is true about the polynomial-8m3+11m
    14·2 answers
  • Wimming Pool On a certain hot summer's day, 528 people used the public swimming pool. The daily prices are $1.25 for children an
    5·2 answers
  • Can somebody help me please I need this answer
    14·1 answer
  • In the function, g(x) = -2x, the independent variable has a value of 6. Find the value of the dependent variable. Type a
    10·2 answers
  • Find the total surface area of the shape
    12·1 answer
  • A is the point ( 7, 12 ) and B is the point ( 2, -1 ). Find the Length of AB.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!