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
sergejj [24]
3 years ago
12

What number must be placed in the box in the equation below to produce an equation that has more than one solution: 5u+3(4u-6)=-

3u-27+20u+ ▢
Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
7 0

Answer: the number must be placed in the box is 9

suppose: the number must be placed in the box is x

have:

5u + 3(4u - 6) = -3u -27 + 20u + x

⇔ 5u + 12u - 18 = -3u - 27 + 20u +x

⇔ 17u + 3u - 20u = -27 + 18 + x

⇔ 0 = x - 9

⇔ x = 9

Step-by-step explanation:

You might be interested in
Halpppp and you get some hearts and branlists!
yaroslaw [1]

Answer:

153/20

Step-by-step explanation:

We want to have the mixed fraction turned into a improper fraction to make adding them both easier. We would change 5 2/8 to 42/8 and 2 4/10 to 24/10.

We now need to get them a common denominator. The LCM (least common multiple) of 8 and 10 is 40, so we multiply 42/8 by 5/5 getting us 210/40 and 24/10 by 4/4 to get 96/40.

Finally, we add them then simplify. 96/40 + 210/40 is 306/40. We then simplify that to 153/20.

4 0
3 years ago
Pls help solve a and b
Varvara68 [4.7K]
A is 9 for the proportion part but I can’t see the rest of b so I can’t answer that for you
6 0
3 years ago
select an appropriate unit from the choices below and convert that rate to that unit. I only need 24 and 26 please help!
Alex_Xolod [135]

Answer:

26: MPH 24: ft/s

Step-by-step explanation:


4 0
3 years ago
The Northwest High School senior class decided to host a raffle to raise money for their senior trip. They charged $2 for each s
prisoha [69]
Let x be the tickets that the adults bought, andy be the tickets that children bought.
From the problem we have the system of linear equations:
\left \{ {{2x+5y=2686} \atop {y=3x}} \right.

The first thing we are going to do to solve our system, is replacing equation (2) in equation (1), and  then, solve for x
2x+5y=2686
2x+5(3x)=2686
2x+15x=2686
17x=2686
x= \frac{2686}{17}
x=158

Now that we have the number of tickets that the adults bought, lets replace that value in equation (2):
y=3x
y=3(158)
y=474

Last but not least, to find the total number of tickets, we are going to add x and y:
158+474=632

We can conclude that <span>Northwest High School's senior class sold 632 raffle tickets.</span>
7 0
3 years ago
Read 2 more answers
The volume of an oblique pyramid with a square base is V units3 and the height is h units.
TiliK225 [7]
The volume of a quadrangular base pyramid is:
 V = (1/3) * (Ab) * (h)
 Where,
 Ab: base area
 h: height
 Clearing the area of the base we have:
 Ab = (3 * V) / (h)
 Answer:
 
An expression that represents the area of the base of the pyramid is:
 
A) 3v / h units
8 0
3 years ago
Read 2 more answers
Other questions:
  • Evaluate 7 a - 5 b when a = 4 and b = 3
    13·2 answers
  • Jejdhsgeuekdskdjduuwwoiehrddujeejdhxu
    6·2 answers
  • Solve for x.....................
    12·1 answer
  • How can you write 1,360/200 as a repeating decimal?
    8·1 answer
  • Let X1 and X2 be two random variables following Binomial distribution Bin(n1,p) and Bin(n2,p), respectively. Assume that X1 and
    7·1 answer
  • ALL MY POINTS !!! (But 2 for 1)
    9·2 answers
  • Helppp...........................math ​
    12·1 answer
  • How much does he/she pay with 10 %
    9·1 answer
  • I need ALL possible answers! Please help ASAP!
    8·2 answers
  • A right square pyramid has a slant height of 10 feet, and the length of a side
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!