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Yanka [14]
3 years ago
13

Algebra 1 help! •giving brainliest!

Mathematics
1 answer:
Alexxx [7]3 years ago
8 0
Compound interest:

A=P\left(1+\dfrac rn\right)^{nt}

where P is the amount you start with, r is the interest rate, n is the number of times interest is compounded per year, and t is amount of time that passes.

4272\left(1+\dfrac{0.12}1\right)^{1\times3}=4272\times1.12^3\approx6001.85
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Extra Credit (5pts) A new pair of shoes is advertised for $75. The sales tax is 8.25%. What is the total cost of the shoes? (Giv
torisob [31]

Answer:

I'm here to help!

First, we need to make a proportion to find the sales tax:

(Let x= Sales tax)

\frac{100}{8.25} =\frac{75}{x} \\100x=75*8.25\\x=6.1875

We have the sales tax!

Now we need to estimate, as you cannot have.75 of a cent...

x=about6.19

Now to add them:

75+6.19=81.19

There you go! The total cost is about 81.19!

Hope this helps!

P.S. Stay Safe!

6 0
3 years ago
A question to upload the GeoGebra downloaded file : Graph the quadratic function of your choice and find the vertex and axis of
Juliette [100K]

Answer:I drew a quadratic function with a vertex and axis of symmetry, hope this helps

4 0
3 years ago
Given f(x) = 5 - 3x, if f(x)= -19, find x.
liraira [26]
Answer is zero


f(x)=5-3x
f(x)=-19


-19=5-3x
-5 = -5-3x
0 = -3x
-3 = -3
0 = x
7 0
4 years ago
If
Verdich [7]
Each friend gets 1/18
Because 1/6 divided by 3 is 1/18
8 0
3 years ago
Read 2 more answers
A car travels 100 miles in 4 hours. What is its average speed?
mestny [16]

Answer:

25 miles per hour

Step-by-step explanation:

100 / 4 = 25

7 0
3 years ago
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