1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mote1985 [20]
3 years ago
10

What is 11+5+3x2+8x1

Mathematics
2 answers:
bogdanovich [222]3 years ago
8 0
Please Excuse My Dear Aunt Sally... this is a good way to remember the acronym PEMDAS which tells you the order of operations in an equation. First you do what's in parentheses, then exponents, multiplication, division, addition, and finally subtraction.

11+5+3×2+8×1 =

With only addition and multiplication you multiply first...

11+5 + 6 + 8 =

Now just add across

30
VladimirAG [237]3 years ago
6 0

The correct answer is: 30

Explanation:

To perform mathematical operations, you have to follow the following rules:

1. Parenthesis has the highest precedence when evaluating the expression. It means that anything that is within the parenthesis should be solved first.

2. Exponents have the second precedence.

3. Multiplications and Divisions have the third precedence. As you can see, both are at the same level, the expression in which both of them are involved should be solved using left to right approach--meaning whatever comes first from the left should be solved first and then the second.

4. Additions and subtractions have the fourth precedence. As you can see, both are at the same level, the expression in which both of them are involved should be solved using left to right approach--meaning whatever comes first from the left should be solved first and then the second.

Now keeping above rules in mind, solve 11+5+3x2+8x1:

Step-1:

There are two "multiplies," now we have to first apply left to right approach as follows:

11 + 5 + 6 + 8x1 (as 3x2 = 6)

Step-2:

Now the other multiply operation:

11 + 5 + 6 + 8 (as 8x1 = 8)

Step 3:

Now all operators are "Additions," so apply left to right rule one by one to get the answer:

16 + 6 + 8 (as 11+5=16)

22 + 8 ( as 16+6 = 22)

30 (as 22+8=30)

The correct answer is: 30

NOTE: Shortcut to remember the precedence is: PEMDAS (But MD are at the same precedence, likewise AS).

You might be interested in
What is the solution for the system of equations {9x+8y=3 6x−12y=−11?
lions [1.4K]

Answer:

( - \frac{1}{3}, \frac{3}{4} )

Step-by-step explanation:

Given the 2 equations

9x + 8y = 3 → (1)

6x - 12y = - 11 → (2)

To eliminate the y- term multiply (1) by 1.5

13.5x + 12y = 4.5 → (3)

Add (2) and (3) term by term

(6x + 13.5x) + (- 12y + 12y) = (- 11 + 4.5)

19.5x = - 6.5 ( divide both sides by 19.5 )

x = \frac{-6.5}{19.5} = - \frac{1}{3}

Substitute this value into either of the 2 equations and solve for y

Using (1), then

- 3 + 8y = 3 ( add 3 to both sides )

8y = 6 ( divide both sides by 8 )

y = \frac{6}{8} = \frac{3}{4}

Solution is (- \frac{1}{3}, \frac{3}{4} )

6 0
3 years ago
Suppose that x and y vary inversely, and x = 12 when y = 8 . Write the function that models the inverse variation.
Alja [10]

Answer:

y=\frac{96}{x}

Step-by-step explanation:

So when x and y, vary inversely, it means that the product of x and y will remain constant such that: xy=c. This means that the function can be defined as y=\frac{c}{x} by dividing both sides by x. In this case x=12, and y=8, this means the constant is equal to 12 * 8 which is 96. So we have the equation:  xy = 96, which can be defined as y=\frac{96}{x}

7 0
2 years ago
How many yards off the line of scrimmage does the pass rusher need to line up?
stich3 [128]

The pass rusher, which is typically line up on the line of scrimmage.

Have a Great Day :)

3 0
3 years ago
1 over 3b = 4 over 5 . Which of the following equals b in this equation? (4 points)
vfiekz [6]

Answer:

none of the answers listed are equivalent to b (22/5, 11/8, 2/5, 1/4)

Step-by-step explanation:

\frac{1}{3b} = \frac{4}{5}

to simplify, cross multiply

(1 · 5  =  3b · 4)

(5 = 12b)

divide both sides by 12 to isolate b,

\frac{5}{12} =\frac{12b}{12}

\frac{5}{12} = b

None of the answers listed are equivalent to 5/12

\frac{5}{12} \neq\frac{22}{5}

\frac{5}{12} \neq\frac{11}{8}

\frac{5}{12} \neq\frac{2}{5}

\frac{5}{12} \neq\frac{1}{4}

8 0
2 years ago
1-sin^2x / sin^2x + cos^2x
Hunter-Best [27]

Answer:

Solution answer is cos^2x

Step-by-step explanation:

1-sin^2x  = cos^2x

sin^2x + cos^2x = 1

then

1-sin^2x / sin^2x + cos^2x = cos^2x / 1

So

Solution answer is cos^2x

5 0
3 years ago
Other questions:
  • Ariel's guitar teacher charged $35 each month for lessons. Her new rate is $40 a month.
    7·2 answers
  • I need help on 9-10 , I will mark brainliest
    12·2 answers
  • wants to buy a video game that cost $299 and his parents will pay 40% what will be the part he has to pay
    15·2 answers
  • Given that y^x=x^y, wich of the following expressions equal dy/dx?
    11·2 answers
  • Katie is buying souvenir gifts for her big family back home. She wants to buy everyone either a key chain or a magnet. The magne
    9·2 answers
  • Please help asap! if you could also explain how you did it so I can answer the other questions by myself
    9·1 answer
  • Solve for a.<br> ab +c=d<br> a=b/(c-d)<br> a = (d - C)/b<br> a=b+c/d
    11·2 answers
  • Adrianna has a garden where she measured the height of a sunflower plant. on the first day it was 1.25 m tall, after 2 weeks it
    10·1 answer
  • Can y’all please help me fast
    7·1 answer
  • If f(x) = 5x2 - 3x , what is f(-3)
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!