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Alex73 [517]
3 years ago
8

Susy had 2/3 as much money as Mary at first. After receiving 1/2 of Mary's money, Susy had $210. How much money did Susy have at

first
Mathematics
1 answer:
Yuri [45]3 years ago
7 0

Answer:

Susy had 60 in the biggening

Step-by-step explanation:

First:

Susy:Mary=2:3

Next:

Susy:Mary=3.5:1.5=7:3

7=210,1=30

Susy had 60 in the biggening

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The first term in a sequence of numbers is 1/2
Andrei [34K]

Answer:

The correct answer is C. The 4th term is 11.

Step-by-step explanation:

Since the next term is one more than twice the previous, we can calculate it by the following expression:

a_{n} = 2*a_{n-1} + 1

So the second term is:

a_2 = 2*\frac{1}{2} + 1\\a_2 = 2

The third term:

a_3 = 2*2 + 1\\a_3 = 5

And the fourth term:

a_4 = 2*5 + 1\\a_4 = 10 + 1 = 11

The correct answer is C. The 4th term is 11.

7 0
3 years ago
Identify the exponential function below. Which of the following is the equation for this graph??
Elena-2011 [213]
Using a graph tool
see the attached figure

<span>let's graph all the cases to verify the answer

case A) f(x)=(3</span><span>^x)-2

case B) </span>f(x)=(4^x)-2

case C) f(x)=4^(x-2)

case D)  f(x)=4^(x-2) +2------> this is the solution

the answer is the option D

5 0
3 years ago
Which statement is true if CH = 6
Rashid [163]
C) because it equals each other
6 0
3 years ago
What is the approximate value of k?
lesya692 [45]

Hello from MrBillDoesMath!

Answer:

5.06

Discussion:

Angle J = 180 - (120 + 40) = 180 - 160 = 20 degrees,

From the law of sines

sin(120)/k = sin(20)/2  =>

sin(120) =  k *  (  sin(20)/2) )                (multiply both sides by "k")

k = sin(120)/  (   sin(20)/2)                    (divide both sides by sin(20)/2)

k =  (0.866) /  ( 0.171) =  5.06


Regards,  

MrB

 P.S.  I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!


6 0
3 years ago
3. When Antoine or Adriane is halfway to the top of the Ferris wheel, what is his or her elevation? (Use the
klemol [59]

Answer:  70

Step-by-step explanation:

Antoine's elevation when he is halfway to the top is 70. You cut the diameter (120) in half which gets you 60 and you add the height of the stand holding the wheel (10) which gets you 70.

3 0
3 years ago
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