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Reptile [31]
3 years ago
12

Determine if the following system of equations has no solutions ......................

Mathematics
1 answer:
topjm [15]3 years ago
8 0

Answer:

No solutions

Step-by-step explanation:

3x+4y=-4

15x+20y=-22

——————————

-5(3x+4y)=-5(-4) multiply 1st equation by -5 so you can eliminate the variables

-15x-20y=20. Modified 1st equation

15x+20y=-22.  2nd equation

0+0=-2. Added two equations together

since 0 does not equal -2, there is no solution.

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Sean and sarah spend $70 a month eating out how much money would they have after 15 years if they invested the money instead at
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Answer:

Future Value= $17,170.12

Step-by-step explanation:

Giving the following information:

Monthly deposit (A)= $70

Interest rate (i)= 0.04/12= 0.0033

Number of periods (n)= 15*12= 180 months

<u>To calculate the future value (amount saved), we need to use the following formula:</u>

FV= {A*[(1+i)^n-1]}/i

A= monthly deposit

FV= {70*[(1.0033^180) - 1]} / 0.0033

FV= $17,170.12

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You need 3 sticks of butter for every 24 cookies you bake. How many sticks of butter for 16 cookies
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Answer: 2 sticks.

Step-by-step explanation:

Given statement: You need 3 sticks of butter for every 24 cookies you bake.

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Then the number of sticks of butter used to bake 1 cookie=\dfrac{1}{8}\times16=2

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a population of rabbits is growing naturally at 20% each month. if the colony began with 2 rabbits, how many will there be in 5
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I know that real numbers consist of the natural or counting numbers, whole numbers, integers, rational numbers and irrational nu
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The imaginary unit i belongs to the set of complex numbers, denoted by \mathbb C. These numbers take the form a+bi, where a,b are any real numbers.

The set of real numbers, \mathbb R, is a subset of \mathbb C, where each number in \mathbb R can be obtained by taking b=0 and letting a be any real number.

But any number in \mathbb C with non-zero imaginary part is not a real number. This includes i.

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I'm not sure what you mean by this part of your question. It is possible to represent any real number as a complex number, but not a purely imaginary one. All real numbers are complex, but not all complex numbers are real. For example, 2 is real and complex because 2=2+0i.

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