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WINSTONCH [101]
3 years ago
13

Jonathan bought a calculator for X$. Cindy bought the same calculator for 3 times more than Jonathan paid for his calculator. Wh

ich expression represents the amount of money Cindy paid for her calculator ?​
Mathematics
1 answer:
Andrej [43]3 years ago
5 0

Answer:

3x or 3*x

Step-by-step explanation:

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Can someone plz ummmm help me :))))))
kykrilka [37]

The sequence is geometric. Any exponential function models geometric growth. Recall the general nth term of a geometric sequence is a*(r)^(n-1) which is very similar to the form y = a*b^x. The big difference is that the x function is continuous while the function in terms of n is discrete. In this case, the common ratio is r = 1.10 to indicate we have 10% growth. Notice how 100%+10% = 1.00+0.10 = 1.10

----------------------------------------

The first quadrant is where x and y are both positive. Since x is the time in years, it doesn't make sense to talk about negative years or negative years have passed by. We can have a negative balance in a bank account, so it makes sense to have y be negative. However, Mr Sullivan starts with some positive amount and his account grows every year. So there's no way that y can be negative in this case.

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The point (0,200) is the y intercept. It represents the starting amount he deposited into the account, which was the $200. Keep in mind that no other deposits were made, and he cannot pull money out of the account if he wants his account to grow according to the graph. Also, the interest rate must remain at 10%.

7 0
3 years ago
Which property does this represent?
ira [324]

Answer:

-3x1=-3 b multiplicative inverse

Step-by-step explanation:


5 0
3 years ago
Every day a kindergarten class chooses randomly one of the 50 state flags to hang on the wall, without regard to previous choice
Svet_ta [14]

Answer:

a.)  P(x = X) = \frac{1}{50}

b.) \frac{1}{50} \times\frac{1}{50} \times\frac{1}{50}  = \frac{1}{125000}

c.) 0.00118

Step-by-step explanation:

The sample space Ω = flags of all 50 states

a.) Any one of the flags is randomly chosen. Therefore we can write the    

   probability measure as P(x = X) = \frac{1}{50} , for all the elements of the sample

   space, that is for all x ∈ Ω.

b.) the probability that the class hangs Wisconsin's flag on Monday,

   Michigan's flag on Tuesday, and California's flag on Wednesday

 = \frac{1}{50} \times\frac{1}{50} \times\frac{1}{50}  = \frac{1}{125000}

c.) the probability that Wisconsin's flag will be hung at least two of the three days

= Probability that Wisconsin's flag will be hung on two days + Probability that Wisconsin's flag will be hung on three days

= P(x = 2) + P(x = 3)

= (\binom{3}{2}\times \frac{1}{50} \times \frac{1}{50}\times \frac{49}{50}) + (\binom{3}{3}\times \frac{1}{50} \times \frac{1}{50}\times \frac{1}{50})\\

= \frac{147}{125000} + \frac{1}{125000}

= \frac{148}{125000}

= 0.00118

7 0
3 years ago
Use the properties of equality to complete each proof. <br> Given: 6x-2y =14; Prove: y = 3x - 7
sveticcg [70]

Answer:

Step-by-step explanation:

6x - 2y = 14

x = (14 + 2y)/6

--------------------------

y = 3(14 + 2y)/6 - 7

y = (14 + 2y)/2 - 7

2y = 14 + 2y - 14

2y - 2y = 14 - 14

8 0
3 years ago
Read 2 more answers
Please help i really need this fast!
ankoles [38]

Answer:

first one is right b and c are 15mm

8 0
3 years ago
Read 2 more answers
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