All categories

3 years ago

Order of operations

Mathematics

2 answers:

oee [108]3 years ago

4 0

Use the PEMDAS rule. So first do whatever is in the parenthesis. 8 squared is 64 so 65-64 is 1 and 1-2 is -1

dedylja [7]3 years ago

4 0

You would first do 13x5 which equals 65, then you would 8x8 which equals 64, then you would subtract 65-64 which equals 1, finally you would subtract 2-1, which equals 1, im pretty sure im right, but dont be afraid to tell me if im wrong :)

You might be interested in

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x + 10) degrees, what is the value of x?

user100 [1]

Answer:

Correct option is

∘

,90

∘

,90

∘

Let AB and CD be two lines Intersecting at O, such that, ∠AOD=90

∘

Now, ∠AOD=∠COB=90

∘

(Vertically opposite angles)

⟹∠AOD+∠DOB=180

(Angles on a straight line)

⟹90+∠DOB=180

∠DOB=90

∘

∠DOB=∠AOC=90

∘

(Vertically opposite angles)

Thus, all angles are 90

∘

7 0

2 years ago

A sample of adults was asked to choose their favorite sport to watch from a list of four sports.

Dmitriy789 [7]

Answer:

15/39

Step-by-step explanation:

7 0

3 years ago

Sam and Harry are family. Sam is currently is three times Harry's age. Sam's age is also 10 more than twice Henry's age. What ar

kramer

Answer:

<em>Sam is 30 years old, and Harry is 10 years old.</em>

Step-by-step explanation:

Let us assume that the age of Sam is x and the age of Harry is y.

Sam is currently is three times Harry's age.

So, $x=3y$ ----------------------1

Sam's age is also 10 more than twice Harry's age.

so, $x=2y+10$ ---------------2

Subtracting 2 from 1, we get

$\Rightarrow x-x=3y-2y-10$

$\Rightarrow 0=y-10$

$\Rightarrow y=10$

putting this in equation 1,

$x=3(10)=30$

Therefore, Sam is 30 years old, and Harry is 10 years old.

6 0

3 years ago

Read 2 more answers

Five-sevenths minus four-sixths

bekas [8.4K]

5/7-4/6
take the least common multiple of six and seven
which is 42
5*whatever multiple of 7 that gives you 42
5*6=30
plus
4* whatever multiple of six that gives you 42
4*7=28
subtract 28 from 42
your answer 14

8 0

3 years ago

Read 2 more answers

Identify the slope and y intercept of 4x + 2y = 8

Sergeu [11.5K]

Answer:

The slope is -2

and the 'y' intercept point is 4

Step-by-step explanation:

First lets start by writing the given equation in slope-intercept form, by isolating 'y' variable

y=4-2x

Since in this form, the slope of the line is the coefficient of 'x'. our slope is -2

and the 'y' intercept point is 4

4 0

4 years ago