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
Alecsey [184]
3 years ago
13

Help with #7 please :) i’ll mark you brainily

Mathematics
2 answers:
TEA [102]3 years ago
8 0

Answer:

x = 11

Step-by-step explanation:

The student didn't divide two on both sides in the step 1. This the mistake that the student made.

The correct solution

2√( 3x + 3 ) = 12

Divide 2 on both sides,

2√( 3x + 3 ) / 2 = 12 / 2

√( 3x + 3 ) = 6

Square on both sides,

[ √( 3x + 3 ) ]² = 6²

3x + 3 = 36

3x = 36 - 3

3x = 33

x = 33 / 3

x = 11

kiruha [24]3 years ago
3 0

Answer:

x=11

Step-by-step explanation:

✌️❤️✌️

............

You might be interested in
Evaluate j/4<br> when j=12
Aleks04 [339]
I'm guessing, you substitute j with 12 and then you would have 12/4 and that would be 3
7 0
3 years ago
Read 2 more answers
7.5% of what is 7.38
Rashid [163]
Turn the percentage into a decimal 
7.5%=0.075

 .075x=7.38  

Divide both sides by .075 to isolate x
 
x=98.4

3 0
3 years ago
An equation for the depreciation of a car is given by y = A(1 – r)t , where y = current value of the car, A = original cost, r =
r-ruslan [8.4K]
<span>A(1 – r)t , where y = current value of the car,</span>
4 0
3 years ago
Read 2 more answers
Fred has 45 books. Sally has 27 times more books than Fred. How many books does Sally have?
hodyreva [135]

Answer:

fred = 45 books

sally has 27 times more book than fred

sally = 45 X 27

= 1215 books

5 0
3 years ago
Write an algebraic expression for the word phrase. five fewer than d days d – 5 5 + d 5 – d d + 5
Troyanec [42]

Answer:

(d-5)

Step-by-step explanation:

we know that

The phrase"five fewer than d days" is equal to subtract 5 from the number d

so

d minus 5-----> (d-5)

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the following quotient? √96/√8
    10·2 answers
  • Solve and graph the absolute value inequality: |2x + 4| &gt; 8. number line with open circles on negative 6 and 2, shading in be
    9·1 answer
  • A music teacher had six recorders but she decided to buy 4 more boxes with 2 in each box. How many recorders does she have now a
    8·1 answer
  • - 19.8=x over 1.8 what’s the answer
    13·1 answer
  • -1/3(n + 15) = -2<br><br> Explain how to solve it.
    9·2 answers
  • At a high school movie night, the refreshments stand sells popcorn and soft drinks. Of the 100 students who came to the movie, 6
    11·1 answer
  • 8TH GRADE MATH!!<br> PLEASE HELP ME
    12·2 answers
  • Pls help me anyone! pls im so stuck here
    11·1 answer
  • Http://www.gilbertmath.com/uploads/1/4/2/7/14279231/3c_u4_assignment1.pdf
    11·1 answer
  • A. 23,320ft<br>b. 5,830 ft<br>c. 11 660 ft<br>d. 18,000 ft​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!