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
svetoff [14.1K]
3 years ago
10

Explain how to solve the equation b - 7 = 12

Mathematics
1 answer:
Ksju [112]3 years ago
6 0

Answer:

add 7 on both sides. b-7+7=12+7 to eliminate 7. you get b=19. hope this helps.

You might be interested in
What percentage of the data falls outside 1 standard deviation of the mean?
Alik [6]

We all know about the bell curve i.e. normal distribution curve. It is centered about the mean and spread equally on each side.

We describe the area of the curve with the help of standard deviations.

With in 1 standard deviation about the mean i.e. from -1 s.d. (left of mean) to +1 s.d. (right of mean), it covers 68% of the total area of curve.

So, the data that falls outside 1 standard deviation of the mean would be equal to (100% - 68%) i.e. 32%.

So, 32% is the final answer.

3 0
3 years ago
URGENT HELP ME OUT PLEASE 20 points <br><br> What are the solutions to the quadratic equation?
icang [17]
I think it’s c hope this helps you :)
8 0
3 years ago
A _________ is used to change one unit to another?
slamgirl [31]

Answer:

conversion factor

Step-by-step explanation:

A conversion factor is a number used to change one set of units to another, by multiplying or dividing. When a conversion is necessary, the appropriate conversion factor to an equal value must be used. For example, to convert inches to feet, the appropriate conversion value is 12 inches equal 1 foot.

8 0
3 years ago
In a research laboratory, a scientist measures the mass of a 1-carat diamond and finds it to be 200 milligrams, measured to the
vlada-n [284]

Answer:

D=3.5\ gr/cm^3

Step-by-step explanation:

<u>Density</u>

The density of an object of mass m and volume V is given by

\displaystyle D=\frac{m}{V}

It can be expressed in common units like gr/lt, Kg/m^3, gr/cm^3 or any other combination of proper mass [M] by volume [V] units.

The data provided in the question is

m=200\ mg = 0.2\ gr

V=0.057\ cm^3

Thus, the measured density is

\displaystyle D=\frac{0.2\ gr}{0.057 \ cm^3}

\boxed{D=3.5\ gr/cm^3}

We have expressed the result with 1 decimal place because the mass was measured to the nearest hundred milligrams (or one-tenth grams). Any further decimal is senseless because that precision comes from calculations, not from measurements.

6 0
3 years ago
If f(x)=4-11 what is the value of f(5)
Sveta_85 [38]

f(5) = 9

Do this by substitution:

f(x) = 4x - 11

f(5) = 4(5) - 11

f(5) = 20 - 11

f(5) = 9

3 0
3 years ago
Other questions:
  • Is 16x2 + 24x + 9 a perfect square trinomial
    6·1 answer
  • Solve for substitution<br> x-2y+z=-11<br> 3x+2y-z=7<br> -x+2y+4z=-9
    13·1 answer
  • A rectangle has the vertices of 0,0 3,0 0,6 what is the area
    14·1 answer
  • Solve this equation 1 = 1 - 2n + 8
    7·1 answer
  • The company financial officer was interested in the average cost of PCs that had been purchased in the past six months. She took
    12·1 answer
  • Work out the area of the triangle.
    13·1 answer
  • Plsss help ASAP I need a good grade
    12·1 answer
  • 4y =<br> = -x + 16 and y=x+9
    5·1 answer
  • Sheila turned on two buzzers at the
    14·1 answer
  • PLEASE HELP ME!!!! (;´༎ຶٹ༎ຶ`)<br> It needs to be put in slope intercept form
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!