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
il63 [147K]
3 years ago
15

If the sum of a number and three is doubled?, the result is seven less than the number. Find the number

Mathematics
1 answer:
pentagon [3]3 years ago
6 0
(x+3)*2=x-7
2x+6=x-7
x=-13
You might be interested in
Which expression is a sum of cubes?
luda_lava [24]
   
-27x^9+y^6 = (-3)^3\times \Big(x^3\Big)^3 + \Big(y^2\Big)^3=\boxed{\Big(-3x^3\Big)^3+\Big(y^2\Big)^3}



5 0
3 years ago
Read 2 more answers
Three out of every five cookies on the cookie treat our oatmeal raisin cookies if there are 45 cookies on the tray predict how m
snow_lady [41]

Answer:

45 divided by 3 equal 15

Step-by-step explanation:

45 Divided by 3 equal 15

4 0
3 years ago
What is the probability of getting dealt a hand equal to 21?
Grace [21]

Answer:

The odds to get a blackjack (natural) as arrangement: 128 / 2652 = . 0483 = 4.83%. 4.83% is equivalent to about 1 in 21 blackjack hands.

6 0
3 years ago
Octavia buys a pair of jeans for $20.50 plus 8% tax.
dezoksy [38]

Answer:

$56.70 all together

Step-by-step explanation:

$22.14 for the jeans

$34.56 for the jacket

$56.7 all together

Take your tax and move the decimal over to the left by 2 spaces

8. becomes .08

take .08 and multiply it by the price so

20.50 x .08= 1.64

and

32 x .08=2.56

the number you get is how much the tax is, $1.64 is 8% of $20.15

take that number and add it to your price

$1.64+$20.50= $22.14

5 0
3 years ago
Read 2 more answers
Write the cubic polynomial function f(x)in expanded form with zeros −6,−5,and −1, given that f(0)=60
RSB [31]

Answer:

f(x)=2x^{3}+24x^{2}+82x+60

Step-by-step explanation:

we know that

The roots of the polynomial are the values of x when the value of the polynomial f(x) is equal to zero

The roots of the polynomial function are

x=-6 -----> (x+6)=0

x=-5 -----> (x+5)=0

x=-1 -----> (x+1)=0

The equation of the cubic polynomial is

f(x)=a(x+6)(x+5)(x+1)

where

a is the leading coefficient

Remember that

f(0)=60

That means ------> For x=0 the value of f(x) is equal to 60

substitute the value of x and the value of y in the function and solve for a

60=a(0+6)(0+5)(0+1)

60=a(6)(5)(1)

60=30a

a=2

so

f(x)=2(x+6)(x+5)(x+1)

Applying the distributive property

Convert to expanded form                  

f(x)=2(x+6)(x+5)(x+1)\\\\f(x)=2(x+6)(x^{2}+x+5x+5)\\\\f(x)=2(x+6)(x^{2}+6x+5)\\\\f(x)=2(x^{3}+6x^{2}+5x+6x^{2}+36x+30)\\\\f(x)=2x^{3}+24x^{2}+82x+60

3 0
3 years ago
Other questions:
  • Can someone help my do step by step 579 divided by 3
    11·1 answer
  • 1. A college newspaper, The College Spy, has a fixed production cost of $70 per edition and it costs 40¢ per copy to print and d
    15·1 answer
  • The owner of Maumee Ford-Volvo wants to study the relationship between the age of a car and its selling price. Listed below is a
    13·1 answer
  • Explaining Graphs of Functions
    12·2 answers
  • Callie bought 2 gallons of juice for $2.58 per gallon. She sold the juice in 1-cup servings for $0.75 each. Each serving is 1/16
    6·2 answers
  • 20 pen cost $1.60 what is the unit rate
    10·2 answers
  • Help!!!? Does anyone know the answer to this question!!?
    15·1 answer
  • What's the square root of 1/36?
    7·1 answer
  • URGENTT!!!! help quick please
    14·1 answer
  • What does Sam need to score on the fourth test to ensure that she will have an average of 90% for all four tests?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!