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3 years ago

How do you know the correct order in which to evaluate algebraic expressions?

2 answers:

6 0

To evaluate algebraic expressions there is no order. You just need to follow something called pemdas. The way to remember this is

p = please
e = excuse
m = my
d = dear
a= aunt
s = sally

So just remember Please excuse my dear aunt sally or pemdas.

P = parentheses (Apply from left tor right)
E = exponent (Apply from left tor right)
M = multiplication (Apply from left tor right)
D = division (Apply from left tor right)
A = addition (Apply from left tor right)
S = subtraction (Apply from left tor right)

Then solve!

Hope this helps!! xD

lys-0071 [83]3 years ago

3 0

In solving algebraic expressions, there is an order in which to solve it.

1) perform the operation inside the parenthesis first
2) then perform the operation with the exponents
3) apply multiplication and division from left to right of the equation.
4) apply addition and subtraction from left to right of the equation.

Remember this: PEMDAS for easier recall. (parenthesis, exponents, multiplication, division, addition, subtraction)

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3 years ago

Find n. 8/12 = n/48. n = ?

Novosadov [1.4K]

Answer:

n = 32

Step-by-step explanation:

Given:

$\frac{8}{12}=\frac{n}{48}$

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$\mathrm{Cross\; Multiply:}$

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2 years ago

A sample of 36 observations is selected from one population with a population standard deviation of 4.2. The sample mean is 101.

Digiron [165]

Answer:

Step-by-step explanation:

Given that :

the null and the alternative hypothesis are computed as :

$H_o: \mu_1 = \mu_2$

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A model car is 5 inches long. The actual length of the car is 15 feet . What is the scale factor of the model car?

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To obtain the scale factor, the dimensions must be in the same units.

Using the conversion

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