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zysi [14]
3 years ago
10

Pedro opened his account with $680 and withdrew $35 per week. Maria opened her account with $570 and withdrew $25 per week. Solv

e the equation 680 - 35w = - 25w to find out in how many weeks their account will balances will be the same.
Mathematics
1 answer:
ipn [44]3 years ago
7 0

Answer:

11 weeks

Step-by-step explanation:

i did the math but there was to much to put down

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If n^-2 = 1/16, then n could be which of the following?
Zepler [3.9K]

Answer:

The correct choice is

\boxed{n=4}

Step-by-step explanation:

The given equation is

n^{-2}=\frac{1}{16}

We rewrite the left hand side of the equation as a power(a number to a given exponent.

n^{-2}=\frac{1}{4^2}

Recall that;

\frac{1}{a^m}=a^{-m}

We apply this property to obtain;

n^{-2}=4^{-2}

Since the exponents are the same, the bases are also the same.

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A simple modeling clay recipe
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A cube has a volume of 64 cubic feet. The surface area of the cube is?
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Pamela drove her car 99 kilometers and used 9 liters of fuel. She wants to know how many kilometers (k) she can drive with 12 li
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Answer:

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Step-by-step explanation:

Given: Pamela drove her car 99 kilometers and used 9 liters of fuel.

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Solution:

It is given that Pamela drove her car 99 kilometers and used 9 liters of fuel. Also the relationship between kilometers and fuel is proportional.

So, let us assume that she can travel x kilometers in 12 liters of fuel.

By proportionality we have,

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