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
Ostrovityanka [42]
4 years ago
10

With a quick explanation please

Mathematics
1 answer:
Tju [1.3M]4 years ago
6 0
\dfrac{40}{5x-2}=\dfrac{55}{6x+6}\ \ \ |\text{cross multiply}\\\\40(6x+6)=55(5x-2)\\\\240x+240=275x-110\ \ \ |-240\\\\240x=275x-350\ \ \ \ |-275x\\\\-35x=-350\ \ \ \ \ |:(-35)\\\\\boxed{x=10}

Look at the picture.

You might be interested in
Please help me with this question
almond37 [142]
C. None from the above
8 0
3 years ago
Fei Yens dog eats 8 ounces of dog food each day. Fei Yen bought a 28 pound bag of dog food. how many 8 ounce servings are in a 2
steposvetlana [31]
One pound is 16 ounces so 28 pounds is 28x16 which is 448. 448 divided by 8 ounces per serving is 56 ounces per bag
4 0
3 years ago
Evaluate the function f(x)=x^2+6x+2 at the given values of the independent variable and simplify.
____ [38]

Answer:

a) 18

b)x^2+10x+18

c)x^2 -6x+2

Step-by-step explanation:

This is a case of plugging in the value into f(x).

a) f(-8)= -8^2 + 6(-8) +2

f(-8)= 64 + (-48) +2

f(-8)=64 + (-46)

f(-8)=18

b)  f(x+2)= (x+2)^2+6(x+2)+2

So here I'll take a break to explain what's going on, because x+2 is a binomial meaning two terms and it is being squared I have to multiply the whole thing by itself. Meaning: (x+2) x (x+2), this is also known as foiling!! and for the next part its distributing 6 into x and 2.

    f(x+2)= x^2+4x+4+6x+12+2

I'll reorder it

 f(x+2)= x^2+4x+6x+12+2+4

    f(x+2)= x^2+10x+18

c) f(-x)= -x^2+6(-x) +2

f(-x)= x^2 -6x+2

6 0
3 years ago
H(a)=2a+4 <br> g(a)-2a^2+2 <br> find (h+g)(a+3)
Lunna [17]

Answer:

hello :  

(g/f)(3) = g(3)/f(3)

but : g(3) =3(3)+2 = 11

f(3) 2(3)-4 = 2

g/f)(3) = 11/2

3 0
3 years ago
Please help, thank you guys
DiKsa [7]

Step-by-step explanation:

1) 165⁰

2) 180⁰

Note:FOR initial temperature check the temperature at t=0

I hope it helped you

6 0
2 years ago
Other questions:
  • Andrea wanted to run at least 3 more kilometers on Sunday than she ran on Friday and Saturday combined. Did she reach her goal?
    14·2 answers
  • PLEASE HELP! BRAINIEST WILL BE MARK IF RIGHT!
    13·2 answers
  • Please help me with #75. Thanks
    6·1 answer
  • A social scientist uses a survey to study how much time per day people spend doing yard work. The variable given on the survey w
    9·1 answer
  • Solve this and you'll get brainliest!!<br>thank you!!​
    11·2 answers
  • Clara is running a bakery. She's has made a street sign to direct people to her bakery. She painted one side of the post and sig
    8·1 answer
  • Help please, help me out
    11·1 answer
  • PLEASE PLEASE HELP ILL MARK U AS BRAINLIST I NEED HELP ASAP !
    15·2 answers
  • Anyone happen to know the answer?
    10·1 answer
  • Can you plsss help me due now
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!