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
siniylev [52]
3 years ago
10

Petra started with a number added 3 multiplied the result by 4 subtracted 6 and multiplied that result by 3 her final answer was

90 what did she begin with?
Mathematics
1 answer:
dlinn [17]3 years ago
4 0
We don't know the number she started with, so let's call it x.

<span>Petra started with a number added 3: x + 3
</span>
<span>multiplied the result by 4: 4(x + 3)

</span><span>subtracted 6: 4(x + 3) - 6
</span>
<span>and multiplied that result by 3: 3[4(x + 3) - 6]
</span>
her final answer was 90: <span>3[4(x + 3) - 6] = 90

Now we solve the equation for x.

</span><span>3[4(x + 3) - 6] = 90
</span>
<span>4(x + 3) - 6 = 30

4(x + 3) = 36

x + 3 = 9

x = 6

The number is 6.
</span>
You might be interested in
Find the values of x and y.
babunello [35]

Answer:

x=21°. :Angles subtended by the same arc

y=42°. :180-(117+21),angles subtended by the same arc

8 0
3 years ago
D 2.<br> The sum of 3x2 – 8x – 2 and 4x – 2 is
maw [93]

Answer:

3x^2 -4x -4

Step-by-step explanation:

3x^2 – 8x – 2 + 4x – 2

Combine like terms

3x^2 -8x+4x -2 -2

3x^2 -4x -4

8 0
3 years ago
Read 2 more answers
Show how to simplify this problem using the distributive property. <br> 4(12 + 6)
Sunny_sXe [5.5K]

Hey there!

4(12 + 6)

4(12) + 4(6)

4(12) = 48

4(6) = 24

48 + 24 = ?

48 + 24 = 72

Answer: 72 ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

5 0
3 years ago
Read 2 more answers
A fair spinner has 9 equal sections: 2 red, 3 blue and 4 green.
Alex17521 [72]

Answer:

The Probability of not getting two consecutive reds is 0.9506

Step-by-step explanation:

Number of sections = 9

Number of red sections = 2

Number of blue sections = 3

Number of green sections = 4

Probability of getting two consecutive reds = \frac{2}{9} \times \frac{2}{9}=\frac{4}{81}

So,The Probability of not getting two consecutive reds =1- \frac{4}{81}=\frac{77}{81}=0.9506

Hence The Probability of not getting two consecutive reds is 0.9506

3 0
3 years ago
THE BASE AND HEIGHT OF A TRIANGLE WHOSE HEIGHT IS FIVE MORE THAN 6 TIMES ITS BASE
Sedaia [141]
X by 6 then add it all togeth
8 0
3 years ago
Other questions:
  • These dot plots show hourly earnings for a sample of workers in two
    7·1 answer
  • Which is the simplified form of the equation 8p + 4 = -p + 7 + 2p + 3p ?
    10·1 answer
  • Add the numerator and denominator seperatly, then find the quotient <br> -3( - 8) / 5 + 7
    14·1 answer
  • A _____________________________ has a constant change in the x values and a constant ratio in the y values.
    7·1 answer
  • Simplify (√2)(3^√2)​
    5·1 answer
  • Work out 3/4 of 7kg please help
    14·2 answers
  • Use the inequality 18 &lt; -3(4x - 2)<br> Solve the inequality for x. <br> Show your work.
    11·1 answer
  • The cost of filling up Jason's car is directly proportional to the number of gallons purchased. It if costs Jason $32.40 to purc
    14·1 answer
  • In ADEF, e = 9.8 inches, f = 5.6 inches and ZD=149º. Find ZF, to the nearest 10th of
    13·1 answer
  • Make x the subject of the formula x/a -b=c
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!