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
Sindrei [870]
3 years ago
9

80% of the doctors surveyed believed exercising 30 minutes a day can help you live a healthier life. If 240 doctors believe in e

xercising, how many doctors were surveyed?
Mathematics
1 answer:
STALIN [3.7K]3 years ago
7 0

Answer:

Step-by-step explanation:

The question you should be asking yourself is, "80% of how many doctors is 240?"  Algebraically, 80% is .8, "of" is multiplying, "how many doctors" is our unknown, and "is" means equals.  Putting that all together:

.8x = 240 so

x = 300

You might be interested in
Solve the following system of equations using the elimination method.
Margaret [11]
So for eliminating, you only solve for one variable first.

I solved for y, so I multiplied by -4 to eliminate the x.

Then I got y= -1

I then substituted that to one of the equations to get x.

3 0
3 years ago
Find the value of x that makes this statement true
Brrunno [24]
\frac{(-2)^{5x-3}}{(-2)^{2x}} =(-2)^{21}

(-2)^{5x-3-2x}=(-2)^{21}  (The numerator and the denominator has same bases, therefore the powers will get subtracted. It is an exponential property)

(-2)^{3x-3}=(-2)^{21}

3x-3=21  (As the left hand side is equal to right hand side and the bases are on both the sides are equal too, we will equate their exponential power. Another property)

x-1=7

x=8  (After simplifying more, you'll get this)
4 0
3 years ago
Which has the greatest mass?
puteri [66]
A is the correct answer
8 0
2 years ago
What is the product of 2x(5+3)-4^2
Zigmanuir [339]

Answer:

2×8-4^2

=16-16

=0

0 is the porduct

7 0
3 years ago
Is order of operations and number of operations the same thing?
KonstantinChe [14]
No order of operations is what you might know as Pemdas ,number of Operations is something iv'e never heard of.
7 0
3 years ago
Read 2 more answers
Other questions:
  • How do you determine perimiter
    5·2 answers
  • - Two consecutive integers are 5 and 6. Write a quadratic equation that
    15·1 answer
  • find out volume of the solid obtained by rotating the region bounded by the given curves about the specified line. y=lnx, y=1, y
    6·1 answer
  • X(7-x)&gt;8<br><br> A: 8<br> B: 0<br> C: 2<br> D: -1
    13·1 answer
  • Given that the domain is all real numbers, what is the limit of the range for the function ƒ(x) = 42x - 100?
    13·2 answers
  • Pls help ur girl out with math
    6·1 answer
  • What were the two whole numbers?
    15·1 answer
  • I need helP on this Pattern Plz
    15·2 answers
  • The same garden shop sells mulch according to the equation y = 20x, where y represents the cost in dollars, and x represents the
    13·2 answers
  • Angle measure labeled a<br> The arc mesure labeled c
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!