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
Svetradugi [14.3K]
3 years ago
7

3(a+9/12)=3(a+7/12)+ (?)

Mathematics
1 answer:
rosijanka [135]3 years ago
5 0
3a+2.25=3a+1.75
Implies 3a+2.25=3a+1.75+.5
Answer is 0.5
You might be interested in
A girl buys a shirt that was originally $45 but is now $15. What is the rate of change?
jok3333 [9.3K]
So first we find the change
45 to 15=45-15=30

change is 30
rate of change=(change)/(original)

original=45
change=30
30/45=10/15=2/3=0.66666666=66%
rate of change is 66.66%
4 0
3 years ago
a chord of 12cm long of 8cm is away from the of the circle what is the lenght of the chord which is 6cm away from the centre
lana66690 [7]

Answer:

The length of the chord is 16 cm

Step-by-step explanation:

Mathematically, a line from the center of the circle to a chord divides the chord into 2 equal portions

From the first part of the question, we can get the radius of the circle

The radius form the hypotenuse, the two-portions of the chord (12/2 = 6 cm) and the distance from the center to the chord forms the other side of the triangle

Thus, by Pythagoras’ theorem; the square of the hypotenuse equals the sum of the squares of the two other sides

Thus,

r^2 = 8^2 + 6^2

r^2= 64 + 36

r^2 = 100

r = 10 cm

Now, we want to get a chord length which is 6 cm away from the circle center

let the half-portion that forms the right triangle be c

Using Pythagoras’ theorem;

10^2 = 6^2 + c^2

c^2 = 100-36

c^2 = 64

c = 8

The full

length of the chord is 2 * 8 = 16 cm

5 0
3 years ago
Every year, for the annual school bake sale,
Leno4ka [110]

Answer: Annie will have to make 228 cookies

explanation:

let y represent the total number cookies   that Annie will make.

<h3>y= 342*(2/3)</h3><h3>y=228</h3><h3 /><h3 />

5 0
3 years ago
If two cards are randomly chosen from a standard deck, what is the probability that a 6 is chosen, replaced, and another 6 is ch
lord [1]

|\Omega|=52^2=2704\\ |A|=4^2=16\\\\ P(A)=\dfrac{16}{2704}\Rightarrow{\text{B}}

7 0
3 years ago
4125 x 10 to the 3rd power
Kobotan [32]

In standard form, it would look like this:

4125 * 1000

This would be 4,125,000

4 0
3 years ago
Read 2 more answers
Other questions:
  • A piece of string is 325 centimeters long.
    12·1 answer
  • Adult male heights are normally distributed with a mean of 70 inches and a standard deviation of 3 inches. The average basketbal
    8·2 answers
  • ??????could anyone help
    15·1 answer
  • Is 8 10 13 a right triangle
    11·2 answers
  • Marvin collects trading cards.He stores them in boxes that hold 235 cards each.If Marvin has 4 boxes full of cards, how many car
    9·2 answers
  • Ayuda con mi tarea de matemáticas , dice asi : En una biblioteca hay 5 estantes , 2/5 de uno de ellos está ocupado por libros de
    14·1 answer
  • Logx - 2log y + 3 log z
    12·1 answer
  • What is the solution to the system of equations below? y = negative one-fourth x + 2 and 3 y = negative three-fourths x minus 6
    5·2 answers
  • Solve the system need help ASAP
    7·1 answer
  • Select the equation that most accurately depicts the word problem.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!