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2 years ago

How do you do simultaneous equations by the method or substitution?

Mathematics

1 answer:

ozzi2 years ago

5 0

Answer:

Here's the simplest example possible: let's say x + y = 3 and x - y = 1. Solve the second equation for x by adding y to both sides: (x - y) + y = 1 + y. So x = 1 + y. Take that value of x, and substitute it into the first equation given above (x + y = 3).

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What's your real rate of return if your savings account pays 2.5% interest and inflation is at 1%?

kolbaska11 [484]

Answer:

Real rate of return = 1.5%

Step-by-step explanation:

Given:

Savings account return = 2.5%

Inflation rate = 1%

Find:

Real rate of return = ?

Computation:

⇒ Nominal rate of return = Real rate of return + Inflation rate

⇒ Real rate of return = Savings account return - Inflation rate

⇒ Real rate of return = 2.5% - 1%

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3 years ago

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Semmy [17]

Answer: Option b

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Step-by-step explanation:

Linear equations have the following form:

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Where the exponents n, m, s and h are always 0 or 1

To know which equations are nonlinear, identify among the options given, those that have exponents other than 1 or 0

Note that in option b) the exponent of the variable x is $n = 4$ therefore the equation is nonlinear

Finally the answer is the option b

3 0

3 years ago

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vivado [14]

Answer:

Step-by-step explanation:

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3 years ago

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The answer I get

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Step-by-step explanation:

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2 years ago

How do you do simultaneous equations by the method or substitution?​

How do you do simultaneous equations by the method or substitution?