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
klemol [59]
3 years ago
13

If you can multiply a number by 3 and then subtract 5,you will get 40.What is the number?

Mathematics
2 answers:
Tema [17]3 years ago
7 0

Let "a number" = x

3x - 5 = 40 is the equation you will use.

Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, add 5 to both sides

3x - 5 (+5) = 40 (+5)

3x = 40 + 5

3x = 45

Next, to isolate the x, divide 3 from both sides

(3x)/3 = (45)/3

x = 45/3

x = 15

15 is your answer

~

mylen [45]3 years ago
6 0

The number is 15.

40+5 = 45

45/3 = 15


You might be interested in
The surface areas of two similar solids are 384 yd squared and 1057 yd squared The volume of the larger solid is 1795. What is t
Arturiano [62]
This is the concept of scale factors, we are required to calculate for the volume of the smaller solid if the larger solid has a volume of 1975.
Area scale factor=(linear scale factor)^2
thus;
Area scale factor=(area of larger solid)/(area of smaller solid)=1057/384
linear scale factor=√(1057/384)=5.7019
the volume scale factor=(linear scale factor)^3=[volume of larger solid]/[volume of smaller solid]
The volume scale factor=(5.7019)^3=185.3772
therefore;
volume of smaller solid=[volume of larger solid]/[volume scale factor]

=1795/185.3772
=9.683 
The answer is 9.683 yd^3

5 0
3 years ago
Belinda wants to invest in an option that would help to increase your investment value by the greatest amount in 20 years. Will
Molodets [167]

Step-by-step explanation:

Part A, Option 1 is a exponential function while option is a linear equation.

Part B, Let y=b*a^(x) be the function for option 1. At x=1, y=1100 and at x=2, y=1210. 1100=b*a and 1210=b*a^2. Dividing them both we get, b=1.1 and a=1000. y=1000*(1.1)^(x). For option 2, it's a linear equation with a function y(x)=1000+100x.

The 20 year difference would be immense. With option 1, Belinda will get $6727.5 whereas with option 2, they will end up with $3000

5 0
3 years ago
Read 2 more answers
Cone A and Cone B are similar. The radius of
PIT_PIT [208]

Answer:

thats funny ahahahaaha

Step-by-step explanation:

7 0
3 years ago
The lines 3y + 1 = 6x + 4 and 2y + 1 = x - 9 are ?
harkovskaia [24]

Answer:

lines are not perpendicular or parallel

6 0
2 years ago
An archer is able to hit the bull's-eye 53% of the time. If she shoots 10 arrows, what is the probability that she gets exactly
Vesnalui [34]

Answer:

P(x=4)=.2458

hope it helps!

6 0
3 years ago
Other questions:
  • It's important to re-evaluate financial goals periodically. In which of the following situations would it be necessary to change
    15·2 answers
  • Calculate the standard deviation of the volume of water at a temperature of 25°C.
    13·1 answer
  • A dessert has both fruit and yoghurt inside.
    8·1 answer
  • A speed of 55 miles per hour is equal to how many feet per minute?
    8·2 answers
  • Find the area of the figure. Round to the nearest tenth if necessary.
    12·1 answer
  • A travel trailer is bought at the price of $35,000. The price decreases at the rate of .25 every year (t). The exponential expre
    10·1 answer
  • Write an exspression for ''h less than 13''
    10·2 answers
  • GEOMETRY HELP WILL MARK BRAINLIEST
    14·2 answers
  • I need help with these 2 <br> i need to get a answer and i have to explain pls help! :(
    10·1 answer
  • You have two identical boxes which an interior dimensions of 8.0x8.0x8.0. You completely fill one of the boxes with wooden spher
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!