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
Otrada [13]
3 years ago
8

7-8x+4y+18-3x-y simplify​

Mathematics
1 answer:
Katyanochek1 [597]3 years ago
7 0

Answer:

-11x +3y + 25

Step-by-step explanation:

7-8x+4y+18-3x-y

= -8x-3x +4y-y +18+7 (putting like terms together)

= -11x +3y + 25 (Adding like terms)

You might be interested in
A pharmacist wishes to mix a solution that is 6% Minoxidil. She has on hand 100 ml of a 2% solution and wishes to add some 8% so
son4ous [18]

Answer:

200 ml

Step-by-step explanation:

It's proportions basically.

frst off, 2% of 100 ml is 2 ml, so the 100 ml solution has 2 ml of Minoxidil.

Eventually we want 6/100 to be the porportion.  so the total is going to be 100 (from the initial 100 ml) plus however much is needed x.  And we want the amount of Minoxidil to be 2 + 8 percent of x.  so this gets us the equation

6/100 = (2 + .08x)/(100+x)  Then we solve

(100 + x) 6/100 = 2 + .08x

(100 + x) 6 = 200 + 8x

600 + 6x = 200 + 8x

400 = 2x

x = 200

so they should add 200 ml

You can check too.  there is 100 + 200 ml of solution total and 2 + 16 ml of Minoxidil so that's 18/300 = 6/100

6 0
3 years ago
Represent the following expressions as a power of the number a (a≠0): c ((a2)−2)5÷(a4a)3
s2008m [1.1K]

Answer:

1/a²⁷

Step-by-step explanation:

Given: $ \frac{((a^2)^{-2})^5}{a^4.a^3} $

We know that when the bases are same the powers can be added. i.,e.,

                                           (xᵃ)ᵇ = x ⁽ᵃ ⁺ ᵇ⁾

⇒ $ \frac{((a^2)^{-2})^5}{a^4.a^3} \implies \frac{(a^2)^{-10}}{a^7} $

$  \implies \frac{a^{-20}}{a^7} = a^{-20 - 7} = a^{-27} $

Also, $ \frac{x^a}{x^b} = x^{a - b} $

This is nothing but, $ \frac{1}{a^{27}} $.

Note that $ a $ cannot be zero here. The condition is provided in the question as well.

7 0
3 years ago
Please Help Asap!!!!!!!!!!
timurjin [86]

Answer:

Step-by-step explanation:

125

3 0
3 years ago
Can someone help me pls
creativ13 [48]

Answer:

69

Step-by-step explanation:

caculator

69 hahahahahahaha

5 0
3 years ago
2+2 so you can get 40 pts I need to just write 20 characters so... ndds8bdsudbsd8s shdds8sjd sudh89hd
Zanzabum

Answer:

2+2 is 4

Step-by-step explanation:

You can imagine 2 cookies and then you get 2 more which is 4.

4 0
3 years ago
Other questions:
  • you want to create a rectangular display of 50 quarters with the same amount of quarters in each row. how many ways can you arra
    5·2 answers
  • Francisco’s game involves a bag of 3 green, 2 yellow, 4 red, and 3 black marbles. Andrew wants to increase the likelihood of sel
    9·2 answers
  • An arrow is shot vertically upward at a rate of 240 feet per second from ground level. Use the projectile formula to determine w
    6·1 answer
  • 15,840 feet = ___ miles
    10·1 answer
  • A bicyclist rides 1/5 mile in 1/65 hour. Write this rate as a unit rate
    13·2 answers
  • Mean absolute deviation of the fulfilled items on Sherrie's registry. $29, $58, $15, $129, $75, $22
    9·1 answer
  • Chords AB and CD intersect inside a circle at point E. AE= 2, CE =4 , and ED =3 . Find EB.
    6·1 answer
  • Change fraction to decimal 4/9​
    14·2 answers
  • <img src="https://tex.z-dn.net/?f=%5Cleft%28%5Csqrt%7B2%7D%2B1%5Cright%29%5Cleft%285%2B%5Csqrt%7B2%7D%5Cright%29" id="TexFormula
    14·2 answers
  • 4:00 am to 8:00 is how many hours
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!