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3 years ago

Can somebody explain PEMDAS (Order of Operations) to me?

Mathematics

1 answer:

s344n2d4d5 [400]3 years ago

6 0

It's simple.

P - Parentheses

E - Exponents

D - Division

M - Multiplication

A - Addition

S - Subtraction

Whenever we have an expression or problem that involves these operations. We solve them according to the order given above.

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Solve the linear system: y=4x-7 y=4x+4

STALIN [3.7K]

Answer:

Hi! The correct answer is No solutions!

Step-by-step explanation:

~solve for the first variable in one of the equations, then substitute the result into the other equation~

7 0

3 years ago

Can someone answer this for me please show every steps for it

VMariaS [17]

Answer:

x1=8 x2=-8

Step-by-step explanation:

since there is absolute , means any number inside that has negative value will become positive. so the answer is -8 and 8

sorry late reply :(

4 0

3 years ago

27< 3+5x+4 “With a step-by-step explanation be specific”

Nataly [62]

Answer:

$27 < 3 + 5x + 4 \\ 27 < 7 + 5x \\ 27 - 7 < 5x \\ 20 < 5x \\5x > 20 \\ x > \frac{20}{5} \\ \boxed{x > 4}$

<h3>x>4 is the right answer.</h3>

4 0

3 years ago

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He ride a bike for 15 miles oer hour how many miles did he ride

Klio2033 [76]

Yes it’s 15, Thats cool man

7 0

3 years ago

Choose the equation below that represents the line passing through the point (1, -4) with a slope of 1/2

tatiyna

For this case we have that by definition, the line equation of the slope-intersection form is given by:

$y = mx + b$

Where:

m: It's the slope

b: It is the cut-off point with the y axis

According to the statement we have:

$m = \frac {1} {2}$

Thus, the equation is of the form:

$y = \frac {1} {2} x + b$

We substitute the given point and find "b":

$-4 = \frac {1} {2} (1) + b\\-4 = \frac {1} {2} + b\\-4- \frac {1} {2} = b\\b = - \frac {9} {2}$

Finally, the equation is of the form:

$y = \frac {1} {2} x- \frac {9} {2}$

Answer:

$y = \frac {1} {2} x- \frac {9} {2}$

6 0

3 years ago