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
Lesechka [4]
3 years ago
13

What is 8.6x+2.2(2x-5)=54

Mathematics
1 answer:
Alex787 [66]3 years ago
4 0
8.6x+2.2(2x-5)=54\\\\8.6x+(2.2*2x)+[2.2*(-5)]=54\\\\8.6x+4.4x-11=54\\\\13x-11=54\\\\13x=65\\\\\\x=5
You might be interested in
Plz help.. I asked this question on English, but no one answered.
enyata [817]

Answer:

Step-by-step explanation:

A. abject - 2. wretched

B. congenial - 6. friendly

C. deliberately - 7. thoughtfully

D. impetuous - 3. impulsive

E. misgiving - 4. doubt

F. perturbation - 5. disturbance

G. pervade - 8. permeate

H. transgress - 1. err

Hope this helps :)

4 0
3 years ago
Find an equation of variation in which y varies directly as x and y = 12 when x = 6
Margarita [4]
Direct variation:-

y = kx where k is a constant

y=12 when x=6 so we have:-

12 = k*6

k = 12/6 = 2

so our equation of variation is  y = 2x Answer
8 0
3 years ago
A study showed that the ratio of the number of people who get their news from social media to the number of people who their new
Kitty [74]

Answer: 240 people get the news from social media

Step-by-step explanation:

The ratio of the number of people who get their news from social media to the number of people who their news elsewhere is 3:7

Total ratio is the sum of the proportion of those that get their news from social media and those that got their news elsewhere.

It becomes 3+7 = 10

Total number of people in the town is 800

To determine the number of people that got their news from social media, we will divide the proportion of those that get their news from social media by the total ratio and multiply by the total number of people in the town. It becomes

3/10 × 800 = 240

6 0
3 years ago
I need help with this question.
skad [1K]
C would be the answer I think
5 0
3 years ago
A trough of water is 20 meters in length and its ends are in the shape of an isosceles triangle whose width is 7 meters and heig
Vaselesa [24]

Answer:

a) Depth changing rate of change is 0.24m/min, When the water is 6 meters deep

b) The width of the top of the water is changing at a rate of 0.17m/min, When the water is 6 meters deep

Step-by-step explanation:

As we can see in the attachment part II, there are similar triangles, so we have the following relation between them \frac{3.5}{10} =\frac{a}{h}, then a=0.35h.

a) As we have that volume is V=\frac{1}{2} 2ahL=ahL, then V=(0.35h^{2})L, so we can derivate it \frac{dV}{dt}=2(0.35h)L\frac{dh}{dt} due to the chain rule, then we clean this expression for \frac{dh}{dt}=\frac{1}{0.7hL}\frac{dV}{dt} and compute with the knowns \frac{dh}{dt}=\frac{1}{0.7(6m)(20m)}2m^{3}/min=0.24m/min, is the depth changing rate of change when the water is 6 meters deep.

b) As the width of the top is 2a=0.7h, we can derivate it and obtain \frac{da}{dt}=0.7\frac{dh}{dt}  =0.7*0.24m/min=0.17m/min The width of the top of the water is changing, When the water is 6 meters deep at this rate

8 0
3 years ago
Other questions:
  • A book sold 37,900 copies in its first month of release. Suppose this represents
    11·1 answer
  • Millie, Josh and Libby receive a bonus at work. They are paid in the ratio of 2 : 3 : 4.
    15·1 answer
  • 8 plus 3 cubed over 12-7
    15·1 answer
  • What is the y-intercept of this line?​
    8·2 answers
  • 3(n-4)=5n+4<br><br> What does n equal?
    11·1 answer
  • Is a rectangle with curved angles a polygon
    11·1 answer
  • A go kart speed is 607,200feet per hour what is the speed in miles per hour.
    8·2 answers
  • The augmented matrix of a consistent system of five equa- tions in seven unknowns has rank equal to three. How many parameters a
    8·1 answer
  • Show proof and work for brainliest
    14·1 answer
  • WILL GIVE BRAINLYEST
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!