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slamgirl [31]
3 years ago
9

Liza opens a new savings account. Assuming she deposits $15 every week, which equation represents the balance, y, of the savings

account after x weeks?
A) y = 15
B) y = 15x
C) y = x + 15
D) y = x/15 + 1
Mathematics
2 answers:
Marizza181 [45]3 years ago
6 0
Y would equal be number 45;):)
fiasKO [112]3 years ago
3 0
B. “Y = 15x” would be your answer. Y is your end balance and x is the weeks. For example, if x is 3 weeks, your equation would be 45 = 15*3. In this case, y would be 45. Need anymore help?
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Write the number in 2 equivalent forms as a fraction, decimal, or percent.<br> 20<br> 20
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Answer:

11/100 as a fraction

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step-by-step explanation:

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-1/3 + 7/4. in simplest form plzz
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What is the scale factor of two similar pyramids with volume of 13824 cubic feel and 216 cubic feet?
velikii [3]

Answer: The scale factor is 4

Step-by-step explanation:

We know that the pyramids are similar. The volume of one of these pyramids is  13,824 cubic feet and the volume of the other one is 216 cubic feet. Then:

V_1=13,824ft^3\\V_2=216ft^3

By Similar solids theorem, if two similar solids have a scale factor of \frac{a}{b}, then corresponding volumes have a ratio of \frac{a^3}{b^3}

Then:

\frac{V_1}{V_2}=\frac{a^3}{b^3}

Knowing this, we can find the scale factor. This is:

\frac{13,824}{216}=\frac{a^3}{b^3}\\\\\frac{13,824}{216}=(\frac{a}{b})^3\\\\\frac{a}{b}=\sqrt[3]{\frac{13,824}{216}}\\\\scale\ factor=\frac{a}{b}=4

3 0
3 years ago
Larry Mitchell invested part of his $36,000 advance at 7% annual simple interest and the rest at 2% annual simple interest. If h
alisha [4.7K]

The amount invested at each rate

Investment at 7% = $25000

Investment at 2%  = $11,000

<h3>What is investment?</h3>

Investment definition is an asset acquired or invested in to build wealth and save money from the hard earned income or appreciation.

Given:

Larry Mitchell invested = $36,000 at 7% annual simple interest

the rest at 2% annual simple interest.

Total investment = 36000

let the investment at 7% is x

then, invested at 2% = 36000 - x

Total interest earned = $1,970

Simple interest = principal * rate * time

Investment at 4%:

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Hence,

Investment at 7% = $25000

Investment at 2% = $36,000 - $25000 = $11,000

Learn more about this concept here:

brainly.com/question/18801028

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2 years ago
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