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tatyana61 [14]
4 years ago
7

Nancy’s parents gave her $200 to start her savings account. After 5 months of saving, Nancy has $350 in her account. What is the

rate of change of the amount of money in her account each month?
Mathematics
2 answers:
Viktor [21]4 years ago
7 0
Current Amount = Starting Amount (1 + rate of change)^number of months
350 = 200 ( 1 + r)^5
350/200 = (1+r)^5
sqrt5 (350/200) = 1+r
sqrt5 (350/200) - 1 = r
horrorfan [7]4 years ago
5 0
30 dollars every month

200+ 5x = 350

X=30
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yulyashka [42]

To find the markup, substract the price at which the car was bought from the price at which the car was sold:

26,808-20,480=6328

To find the markup as a percentage from the original price, set 20,480 to be equal to 100%. If <em>x%</em> represents 6328, then:

\begin{gathered} \frac{x}{6328}=\frac{100}{20,480} \\ \Rightarrow x=\frac{100\times6328}{20,480}=30.898\ldots \end{gathered}

To the nearest tenth, 30.898... = 30.9.

Therefore, the markup is equal to 30.9%.

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1 year ago
What is the value of x ?
miv72 [106K]

the answer is 63 because 63*2=126 and 126+54=180 and all triangles add up to 180

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The value of a piece of land deprecates at a rate of 0.60 per year after three years land is worth 2500 what was the original va
Setler79 [48]

Well, there is actually a formula for this kind of exercises:

n is the price the land had in the third year year

2500=n-nx0.6

2500=n(1-0.6)

2500=nx0.4

n=2500:0.4

n=6250

m is the price the land had in the second year

6250=m-mx0.6

6250=m(1-0.6)

6250=nx0.4

p=6250:0.4

p=15625

p is the price the land had in the first year

15625=p-px0.6

15625=p(1-0.6)

15625=px0.4

p=15625:0.4

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3 years ago
Classify the triangle shown below. Check all that apply.
Zielflug [23.3K]

Answer:

A and B

Step-by-step explanation:

A. Since 2 angles are congruent you know that there has to be 2 equal sides

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D. Not all sides are equal

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vova2212 [387]

Answer:

The bag contains $5.14

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40% of 50 = (.40)(50) = 20 dimes

2 more nickels than pennies = 9 + 2 = 11 nickels

40 coins so far, so 50 - 40 = 10 quarters

Total value:

9 x ($0.01) = $0.09  for pennies

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