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
Lyrx [107]
3 years ago
9

Please help me on these questions, when/if u answer do the answer like this please "1. x=5" or what ever just so i know which on

e.
1.Solve for the variable: 2x - 28 = 16 Options: 17 -6 11.5 22
2.Solve for the variable 12=5x+7 options: 1 -5 -1 25
3.Solve for x: 140=10x+4x Options: 10 3.5 13.6 136
Mathematics
1 answer:
CaHeK987 [17]3 years ago
7 0

1. x = 22, 2. x = 1, 3. x = 10

1.

2x - 28 = 16 ( add 28 to both sides )

2x = 44 ( divide both sides by 2 )

x = 22 ← solution

2.

12 = 5x + 7 ( subtract 7 from both sides )

5 = 5x ( divide both sides by 5 )

1 = x ⇒ x = 1 ← solution

3.

140 = 10x + 4x ( collect like terms on right side )

140 = 14x ( divide both sides by 14 )

10 = x ⇒ x = 10 ← solution


You might be interested in
What are the domain and range of the function f(x)=sqrt(x-7) +9
GenaCL600 [577]

Domain: x ≥ 7

Range (7,9)

5 0
3 years ago
Read 2 more answers
A building has a ramp to its front doors to accommodate the handicapped. If the distance from the building to the end of the ram
bija089 [108]
<span>The ramp forms a right triangle with legs 5 and 22. 
 Find the length of the hypotenuse using the Pythagorean theorem,
 c=raiz((5)^2+(22)^2)=</span><span> <span>22.56 ft
 Answer
</span></span> the ramp is 22.56 ft long. 
7 0
3 years ago
(0, -9) and (-3, -3)<br> I need this problem solved with work please!
nirvana33 [79]

Answer:

-9-(-3)/0-(-3) = -3/3 = -1

y+9= -1(x-0) <u><em>Point Slope form</em></u>

y+9<u>-9</u>= -1x<u>-9</u>

y= -x-9 <em><u>Slope Intercept form</u></em>

y<u>+x+9</u> = -x-9 <u>+x+9</u>

y+x+9= 0 <u><em>General form</em></u>

4 0
3 years ago
X^2 + 12 =3 solve, give exact solution(s) no rounding or decimals
Papessa [141]

Answer:0

Step-by-step explanation:

5 0
2 years ago
How many pounds of carbon dioxide would you prevent from entering the atmosphere in one year, if you were to replace a 100-watt
VikaD [51]
That's an excellent question but we don't have enough information to answer it. We would need to know how the electrical energy is generated. Nuclear, hydroelectric, coal burning, wind, and natural gas burning all produce different amounts of carbon for the same amount of electrical energy. If the utility that supplies your house uses nuclear or wind, then you can leave both bulbs shining 24/7 and they're not responsible for any carbon.
6 0
3 years ago
Other questions:
  • Peter bought 5.65 lbs of hamburger meat to make meatballs write 5.65 as a mixed number
    5·1 answer
  • What is the term in 3y=7x-9
    10·1 answer
  • Greatest to least 3.02 , 3.002 , 3.001
    13·2 answers
  • What is the percent of increase from 40.2 to 98.9?
    8·1 answer
  • Three family members clean the bathrooms, wash the dishes, and do the laundry. If the
    5·2 answers
  • Which single transformation can be applied to the graph of y = 72 StartRoot x EndRoot to produce the graph of y = 9 StartRoot x
    13·1 answer
  • How do I recognize geometric/arithmetic sequences used in real world situations?
    7·2 answers
  • What would be another way to write -8n-7
    7·1 answer
  • Can someone tell me the answer to this???
    9·1 answer
  • Which equation represents the line of best fit shown?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!