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
nata0808 [166]
3 years ago
15

If Isabel has 19 stamps.her friends each gave her 9 how many stamps does Isabel have

Mathematics
2 answers:
dimaraw [331]3 years ago
7 0
19 (the amount of stamps Isabel had) - 9 (the amount of stamps she gave to her friends) 
19 - 9 = 10

Isabel has 10 stamps.
lakkis [162]3 years ago
7 0
How many friends is it. There is no way to answer that unless you know the total number of friends.
You might be interested in
Find all real solutions to the equation (x² − 6x +3)(2x² − 4x − 7) = 0.
Jet001 [13]

Answer:

x = 3 + √6 ; x = 3 - √6 ; x = \frac{2+3\sqrt{2}}{2} ;  x = \frac{2-(3)\sqrt{2}}{2}

Step-by-step explanation:

Relation given in the question:

(x² − 6x +3)(2x² − 4x − 7) = 0

Now,

for the above relation to be true the  following condition must be followed:

Either  (x² − 6x +3) = 0 ............(1)

or

(2x² − 4x − 7) = 0 ..........(2)

now considering the equation (1)

(x² − 6x +3) = 0

the roots can be found out as:

x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}

for the equation ax² + bx + c = 0

thus,

the roots are

x = \frac{-(-6)\pm\sqrt{(-6)^2-4\times1\times(3)}}{2\times(1)}

or

x = \frac{6\pm\sqrt{36-12}}{2}

or

x = \frac{6+\sqrt{24}}{2} and, x = x = \frac{6-\sqrt{24}}{2}

or

x = \frac{6+2\sqrt{6}}{2} and, x = x = \frac{6-2\sqrt{6}}{2}

or

x = 3 + √6 and x = 3 - √6

similarly for (2x² − 4x − 7) = 0.

we have

the roots are

x = \frac{-(-4)\pm\sqrt{(-4)^2-4\times2\times(-7)}}{2\times(2)}

or

x = \frac{4\pm\sqrt{16+56}}{4}

or

x = \frac{4+\sqrt{72}}{4} and, x = x = \frac{4-\sqrt{72}}{4}

or

x = \frac{4+\sqrt{2^2\times3^2\times2}}{2} and, x = x = \frac{4-\sqrt{2^2\times3^2\times2}}{4}

or

x = \frac{4+(2\times3)\sqrt{2}}{2} and, x = x = \frac{4-(2\times3)\sqrt{2}}{4}

or

x = \frac{2+3\sqrt{2}}{2} and, x = \frac{2-(3)\sqrt{2}}{2}

Hence, the possible roots are

x = 3 + √6 ; x = 3 - √6 ; x = \frac{2+3\sqrt{2}}{2} ; x = \frac{2-(3)\sqrt{2}}{2}

7 0
3 years ago
Look at the two expressions.<br><br>3x−18<br><br>3⋅(x−6)<br><br>Are the two expressions equivalent?
Ivanshal [37]
Yes because if you distribute the 3 and multiply it with 3 • x and 3• 6 you’ll get 3x-18
8 0
3 years ago
Read 2 more answers
Idk can someone help
Evgesh-ka [11]

Answer:

if its 2/7 then 98 the luck also counts so 20

Step-by-step explanation:

luck+98+the premtier

4 0
3 years ago
Read 2 more answers
VERY IMPORTANT QUESTION I WILL GIVE 50 POINTS TO WHOEVER ANSWERS THIS QUESTION
solmaris [256]
I think it might be  expression one =14 i think and number 2 is obviously is 19 but you would put parenthesis around 5+4_2+6 

I think i did this right its been a while since i did this 
 
8 0
3 years ago
8(3x+1) please give me your Brainly answer
kodGreya [7K]

Answer:

its 3

Step-by-step explanation:

Simplifying

8 = 3x + -1

Reorder the terms:

8 = -1 + 3x

Solving

8 = -1 + 3x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3x' to each side of the equation.

8 + -3x = -1 + 3x + -3x

Combine like terms: 3x + -3x = 0

8 + -3x = -1 + 0

8 + -3x = -1

Add '-8' to each side of the equation.

8 + -8 + -3x = -1 + -8

Combine like terms: 8 + -8 = 0

0 + -3x = -1 + -8

-3x = -1 + -8

Combine like terms: -1 + -8 = -9

-3x = -9

Divide each side by '-3'.

x = 3

Simplifying

x = 3 this took forever to type hope it helped

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is 1.625 rounded to the nearest tenth
    6·2 answers
  • Marcellus sent four faxes to Gem. The first fax took 14 seconds to send, the second fax 19 seconds, the third 16 seconds, and th
    10·2 answers
  • How do the graphs of y=1/x and y=5/(x+6 )compare
    12·1 answer
  • Find the slope between the points (4, -6) and (-2, -6).
    13·1 answer
  • Help as soon as possible please
    12·1 answer
  • What is 1/2 x 1/2? Please help me i a, confuses
    7·2 answers
  • What is the answer to a situation that could be modeled with the ratio 4 to 1
    11·1 answer
  • Mai biked 3 1/2 miles today, and Noah biked 1 1/8 miles. how many times the length of Noah's bike ride was Mia's bike ride
    9·1 answer
  • What is the value of log <br><img src="https://tex.z-dn.net/?f=%20%7B16%7D%5E%7B4%7D%20" id="TexFormula1" title=" {16}^{4} " alt
    13·2 answers
  • Which prism has a greater volume?<br><br> Prism.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!