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
12345 [234]
3 years ago
13

Determine the solution and indicate the restrictions on the variable.

Mathematics
1 answer:
cupoosta [38]3 years ago
5 0

Answer:

B

Step-by-step explanation:

Subtract 20 from both sides:

-\sqrt{9-8x} =-15

Divide both sides by -1:

\sqrt{9-8x} =15

Square both sides:

9-8x=255

Subtract 9 by both sides:

-8x=216

Divide both sides by -8:

x=-27

That means that either a or b is correct and since 9/8 is positive that means it needs to bee less than 9/8 so the correct answer is B

You might be interested in
Can you solve 4 + 2/3 x = -5 in fraction form?
guapka [62]

Answer:

\frac{-27}{2} = (-13)(\frac{1}{2})

Step-by-step explanation:

The given equation is 4 + 2/3 x = -5

Taking variable on one side and constants on other side, we get

-9 = (\frac{2}{3})(x)

x = (\frac{3}{2})(-9) = \frac{-27}{2} = (-13)(\frac{1}{2}) = -13.5

The number in decimal form is given by -13.5

The number in fraction form is given as \frac{-27}{2} = (-13)(\frac{1}{2})

3 0
3 years ago
What are the coordinate of ABC after a dilation with center 0,0 and a scale factor of 3
lora16 [44]
You times the x and y by 3 good luck
8 0
3 years ago
Mariam and Sana are excited that a new store just opened in town! They go together the first day it opens! Each time Mariam goes
Vadim26 [7]

Answer:

Mariam went to the store 5 times, while Sana went 3 times.

Step-by-step explanation:

Since Mariam and Sana are excited that a new store just opened in town, and they go together the first day it opens, and each time Mariam goes to the store she plans to spend Rs. 30, and each time Sana goes to the store she plans to spend Rs. 50, and a few weeks from now, Mariam and Sana are surprised to find out that they have spent the exact same total amount of money at the store, to determine what is the least possible number of times that Mariam has been to the store the following mathematical reasoning has to be done:

To know how many times Mariam went and how many times Sana went to the store, since she spends Rs. 30 and the other Rs. 50, and they have spent the same after a few weeks, it is through the search for the lower common multiple of both numbers.

Thus, the common multiple less than 30 and 50 is 150 (30 x 5 or 50 x 3). Therefore, Mariam went to the store 5 times, while Sana went 3 times.

8 0
3 years ago
what is 2.9+3.9 estimated, 12.99-3.95 estimated, 8.1+3.7+7.9 estimated, and 3.8+4.1+3.3 estimated answer ASAP plz
DIA [1.3K]

Answer:

7, 17, 20, 11

Step-by-step explanation:

you just round each number to the nearest whole number and then add them

3 0
3 years ago
What is 20 percent of 248
Dvinal [7]

Answer:

20% of 248 is 49.6

Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
Other questions:
  • How do you do this page
    11·1 answer
  • Which two numbers does the square Root of 52 lie between on a number line?
    12·1 answer
  • What is the prime factorization for 356
    10·1 answer
  • Solve. 12 students in the classroom and she wants to create a student to teacher ratio of three to one (three students per teach
    14·1 answer
  • HELP ASAP PLEASE!!!!!!!!
    13·1 answer
  • Could anyone help me with this? T+S+U=130 T=3(U) S= T+10 U= ?? I need to decipher the value of T,S and U.
    11·1 answer
  • Plz help me there are 4 questions
    9·1 answer
  • Solve x2 - 10x = -21
    8·2 answers
  • Help help help help please pleaseeeee
    6·1 answer
  • Solve for x. Enter the solutions from least to greatest.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!