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
victus00 [196]
2 years ago
13

21 ≤ 2x + 3 = How do you work this out? And what is the answer? :)

Mathematics
2 answers:
nadya68 [22]2 years ago
7 0

Answer:

9

Step-by-step explanation:

  • 21≤2x+3
  • 21-3≤2x
  • 18≤2x
  • divide both side by 2
  • therefore the answer
  • x≥9
Igoryamba2 years ago
4 0
Just use app called Socratic will help out
You might be interested in
What is the solution to 89+k=-42
fiasKO [112]
Subtract 89 from -42. k=-131
6 0
2 years ago
Read 2 more answers
Pls look at picture and answer
Kay [80]

Answer:

i cant see the picture

Step-by-step explanation:

it looks pretty blurry

3 0
3 years ago
A room has three lightbulbs. Each one has a 30% probability of burning out within the month. Write the probability as a percenta
lesantik [10]

Answer:

97.3%

Step-by-step explanation:

Let the three bulbs be A, B and C respectively.

Let P(A) denote the probability that the first bulb will burn out

Let P(B) denote the probability that the second bulb will burn out

Let P(C) denote the probability that the third bulb will burn out

Now, we are told that Each one has a 30% probability of burning out within the month.

Thus;

P(A) = P(B) = P(C) = 30% = 0.3

Now, probability that at the end of the month at least one of the bulbs will be lit will be given as;

P(at least one bulb will be lit) = 1 - (P(A) × P(B) × P(C))

P(at least one bulb will be lit) = 1 - (0.3 × 0.3 × 0.3) = 0.973 = 97.3%

3 0
3 years ago
1 pint = ____ cups
katovenus [111]

Answer:

2, 4, 2, 8, 16

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
What is the measure of angle J in the triangle below? <br> A. 99<br> B. 42 <br> C. 9<br> D. 48
Leya [2.2K]
For this use the law of sines:
\sin( \alpha ) \div a = \sin( \beta ) \div b \\ \sin( \alpha ) \div 11 = \sin(103) \div 16
\frac{ \sin( \alpha ) }{11} = \frac{0.97}{16}
cross-multiply:
16×sin (J) = 11×0.97
sin(J) = 10.72/16
sin(J) = 0.67
hit the "arcsin" button on your calculator:
{ \sin}^{ - 1} (0.67) = 42.06 = 42.1 \: deg
therefore answer B. 42 is the correct answer!!
4 0
3 years ago
Other questions:
  • If matrix A has dimensions 3 x 2 and matrix B has dimensions 3 x 2, can matrix A and matrix B be multiplied?
    15·2 answers
  • What is the effect of k in the equation f(x)=x^2+k
    7·1 answer
  • Which is more, 1 yard or 64 inches?
    10·1 answer
  • A Microgates Industries bond has a 10 percent coupon rate and a $1,000 face value. Interest is paid semiannually, and the bond h
    7·1 answer
  • Nine students took the SAT. Their scores are listed below. Later on, they read a book on test preparation and retook the SAT. Th
    8·1 answer
  • while teresa listened to the radio, there were 9minutes of commercials, 12 minutes of talk, and 29minutes of music what percent
    7·1 answer
  • Find intervals of which
    6·1 answer
  • Which ordered pair is a solution of this equation y = 80 – 8x?​
    9·1 answer
  • Help! Give brainliest!
    9·2 answers
  • 2. A more efficient packing of the discs is obtained by dividing the metal sheet into hexagons and cutting the circular lids and
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!