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
horrorfan [7]
3 years ago
9

Four less than the sum of a number and 20 is 16. What is the number

Mathematics
1 answer:
Allushta [10]3 years ago
3 0
[tex]4 - (x + 20 ) = 16

x=0
You might be interested in
A3-b3=(a-b)(a2+an+b2) 64x6-27
olga nikolaevna [1]
<span>a³-b³=(a-b)(a²+ab+b²)

64x⁶ - 27

64 = 4³, 
x⁶ = (x²)³
27 = 3³

</span>64x⁶ - 27 = 4³(x²)³ -3³ = (4x²)³ -3³.  Now, we can use a formula where a=4x², b=3

(4x²)³ -3³ = (4x² -3)((4x²)² +4x²*3 + 3²) =  (4x² -3)(16x⁴ +12x² + 9) 
<span>
Answer: </span>64x⁶ - 27=  (4x² -3)(16x⁴ +12x² + 9) <span>

</span>
4 0
4 years ago
Jasmine purchased a laptop worth $1,500 in 2007. It loses its value by %32 each year. What is the value of the laptop in 2010? R
Lunna [17]

Answer:

$471.65

Step-by-step explanation:

-The value of the laptop after each year is calculated by the formula:

P_t=P_o(1-d)^t

where:

P_t is the value at time t

P_o is the initial value

d is the rate of depreciation

t is the time

#We substitute the values to solve for the value after 3 years(2010-2007=3):

P_t=P_o(1-d)^t\\\\=1500(1-0.32)^3\\\\=\$471.65

Hence, the value of the laptop in 2010 is $471.65

3 0
3 years ago
Help please, 10 points ​
damaskus [11]

Answer:

<u>12 feet</u>

Step-by-step explanation:

<u>Finding the missing side</u>

  • (?)² + (35)² = (37)²
  • ?² + 1225 = 1369
  • ?² = 144
  • ? = √144
  • ? = <u>12 feet</u>
7 0
2 years ago
KL has a midpoint at M (3,5) Point L is at (2,3) find the coordinates of point K.
Marrrta [24]

Why did the narrator use the phrase “fit together like puzzle pieces” to describe how the cells of a developing human embryo form a human face

6 0
3 years ago
Which numbers are​ rational?
QveST [7]

Answer:

0 is a rational number.

-7 is a rational number.

10 is a rational number.

Step-by-step explanation:

Not sure about the rest but these numbers I know for a fact are 100% rational.

3 0
3 years ago
Other questions:
  • Plz help me its in a picture thank you
    13·2 answers
  • A system of equations is shown below: x + y = 3 2x − y = 6 The x-coordinate of the solution to this system of equations is _____
    9·2 answers
  • If 4 out of 25 phone chargers in a box are defective, what is the probability of picking out 2 of them and getting 2 defective c
    5·1 answer
  • A box contains five balls numbered 1, 2, 3, 4, 5. Three balls are drawn randomly at the same time from the box.
    13·1 answer
  • Solve 2/3 plus 5/6 and put answer in simplest form. A 9/6 B 2/3 C 7/6 D 1 1/2
    12·2 answers
  • NEED HELP I SUCK AT GEOMETRY (OFFERING 100POINTS)!!! best answer get brainlest
    8·2 answers
  • PLZ HELP REALLY FAST!!
    15·2 answers
  • The concentration of a drug in a patient's bloodstream t hours after injection is given by C =
    6·1 answer
  • The amount of time needed to complete a job, t, varies inversely with the number of workers, w. If 11 workers can complete a job
    6·1 answer
  • What is 1000-300+74+1000-300+5000-1000
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!