Why is it important to use the order of operations to evaluate algebraic expressions?

Answers

Answer 1
to see your work and be able to check if you have messed up on anything

Related Questions

what is 9x-4y if x= -7 and y= -6

Answers

Answer:

-39

Step-by-step explanation:

Plug the x and y variables in

9(x)-4(y)

9(-7)-4(-6) = -39

Answer:

(Steps below)

Step-by-step explanation:

9x -4y

9(-7) - 4y

9(-7) - 4(-6)

-63 - 4(-6)

-63 - -24

=

-39

HOPE THIS HELPEDDDD :DDDD

estimate the solution of the equation to the nearest whole number.

7.8 + n = 38.2

Answers

ANSWER: 30

EXPLANATION:
7.8+n=38.2
n=38.2 - 7.8
n=30.4
nearest whole no.=30

Answer: 30

Step-by-step explanation:

what happens if you take 65% of $21.00 and compute 110% of the reduced price

Answers

Answer:

21.94

Step-by-step explanation: because i did some basic math

15.015- 21.00x0.65x1.1

-3y-7x
When x=6, y=3

Answers

-9y-42x

Because they are like terms that is the lowest they can go

please help me its very serious & i need an answer

Answers

Answer:

1

Step-by-step explanation:

the answer is 1 sorry if you don't need it anymore

Please help meeeeeeeee help help please

Answers

Answer:

27. My fiend solved the inequality correctly but graphed it incorrectly. The statement "x > 5" is correct but but since the symbol is "greater than" it should have been graphed with an open circle to the right rather than a closed circle to the right.

28. My friend is incorrect for both solving the inequality and graphing. The correct answer for solving the inequality would be "5 ≥ x ". And for graphing the correct answer would be closed circle to the right since the symbol is greater than.

Step-by-step explanation:

27. Solving the inequality

x - 7 > -2

+ 7 + 7

------- ------

0 5

answer: x > 5

Graphing the inequality

Since the symbol is greater than, it would be a open circle to the right because the the right of the number line is positives and the bigger numbers. It would be an open circle because unlike question 28 the symbol is just greater than, not greater than or equal to.

28. Solving the inequality

8 ≥ x + 3

-3 - 3

-------- --------

5 0

answer: 5 ≥ x

Graphing the inequality

Since the symbol is greater than than or equal to, it would be a closed circle to the right because the the right of the number line is positives and the bigger numbers. It would be an open circle because unlike question 27 the symbol is just greater than or equal to, not just greater than.

This might not be the right way to do it or the right answer for that matter, I am very new to solving and graphing inequalities so I just decided to give this one a shot.

Hope this helps ; )

Solve this addition question by substituting numbers for the given letters to find the value of START. Each letter represents a unique digit.

JOAN+CAN=START

Answers

Solved the given question by addition rules and the value of START is 10430.

Given-

The given problem is from the alphabetical puzzle. In the given problem the equation given is,

JOHN + CAN = START.

It can be written as,

   J  O  H  N

+      C  A  N

__________

S  T  A  R  T

__________

S must be 1, because, even if we assume all the missing digit are 9 ( the largest possible value), the sum will be smaller than than 10999 or equal to the 10998.

Similarly the value of T must be 0 because, even if we assume all the missing digit are 9 ( the largest possible value), the sum will be smaller than than 10999 or equal to the 10998.

Now as the T is two times in the solution of addition, and the value of T is 0 as we found. But T is the addition of N and N. Hence N must be 5 to make the addition 10 for the 0 value of the T.

                N

            +  N

            ____

              1 0

            ____

J must be 9 with carried 1 to make the T 0.

A must be more than 10 to have a carry on J. A can not 1 as S has 1 digit. 2 and 3 disturbs the equation. Thus a must be 4. and for this o and c must be 6 and 7.

If a is 4 than the H and R must be 8 and 3.

The sum will look like,

  9  6  8  5

 +   7  4  5

________

1  0  4  3  0

_________

Hence, solved the given question by addition rules and the value of START is 10430.

For more about the addition follow the link below-

https://brainly.com/question/1709448

Stella models a product with algebra tiles. Write a number sentence that best describes her model. Fill in the blanks.

Answers

Answer:

555 and 777

Step-by-step explanation:

WILL MARK BRAINLIEST PLS HELP. Fill in the table by following the rules provided for each backpack.

Answers

Answer:

See complete answer

Step-by-step explanation:

Backpack 2 is 2x, 2y, so double each number:

(0,2) = (0, 4)

(8,2) = (16, 4)

(6,5) = (12, 10)

(2,5) = (4, 10)

(0,2) = (0,4)

Backpack 3 is x + 8, y - 2 so add 8 to x and subtract 2 from y:

(0,2) = (8, 0)

(8,2) = (16, 0)

(6,5) = (14, 3)

(2,5) = (10, 3)

(0,2) = (8, 0)

Backpack 4 is x, 2y, so keep the same x and multiply y * 2

(0,2) = (0, 4)

(8,2) = (8, 4)

(6,5) = (6, 10)

(2,5) = (2, 10)

(0,2) = (0,4)

HELP DUE IN 5 MINS!!!
[tex]n\cdot e\cdot v\cdot \frac{e}{g^o}^r\cdot n^n\frac{a}{Gi}\cdot ve\cdot y^ou\cdot u^p=69[/tex]

Answers

What are the units? Tell me the units so I can solve this please.

We need the units in order to solve them.

Which questions can be answered using the expression 2\3 divided by 5\4

Answers

Answer: 8/15

Step-by-step explanation:

2/3 divided by 5/4:

To make the answer to 2/3 divided by 5/4 in decimal form, you simply divide the numerator by the denominator from the fraction answer:

8/15 = 0.5333

Answer:

8/15

Step-by-step explanation:

2/3 / 5/4 = 8/15

p/ 1 6/7=−4.4 help please!!!!!!!

Answers

Answer:

Sorry, I can't type well.

The solution of the equation p / [1 ⁶/₇] = - 4.4 will be negative 8.17.

What is Algebra?

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

The equation is given below.

p / [1 ⁶/₇] = - 4.4

Convert the mixed fraction number into a decimal number. Then we have

1 ⁶/₇ = 1 + ⁶/₇

1 ⁶/₇ = 1 + 0.857

1 ⁶/₇ = 1.857

Then the equation is rewritten as,

p / 1.857 = - 4.4

Simplify the equation, then we have

p = - 4.4 x 1.857

p = - 8.17

The solution of the equation p / [1 ⁶/₇] = - 4.4 will be negative 8.17.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ2

If b/a=c/b=d/c=2/3, find a:b:c:d. (Please help e-e)

Answers

The answer is a 3 b 5 c8 d4
3 b5 c8 d4 is the answer

After applying the linear combination method, Heather arrived at the equation 0 = 60. What conclusion can be drawn about the system of equations? The equation has no solution; therefore, the system of equations has no solution. The equation has a solution at (0, 60); therefore, the system of equations has a solution at (0, 60). The equation has infinite solutions; therefore, the system of equation as infinite solutions. The equation has a solution at (0, 0); therefore, the system of equations has a solution at (0, 0).

Answers

Answer:

The correct answer is:

The equation has no solution; therefore, the system of equations has no solution.

Step-by-step explanation:

When solving a system of equations, after we combine the equations, if we find that there is no solution, that means that there is no solution to the entire system of equations.

Answer:

a

Step-by-step explanation:

find the area of these shapes:

Answers

Answer:

4. 25.12 cm²

5. 28.56 cm² (square = 16 cm²) (semi-circle = 12.56 cm²)

Step-by-step explanation:

4. pi*4^2= 50.265
50.265/2=25.133

5. 4^2=16
pi*2^2=12.566
12.566/2=6.283
16+6.283=22.283

PLZZZZZ HELP ME!!!! i dont get this!

Answers

the correct selling price is $29.97
23 x 1.11%
The right answer would be $29.97
Because you would multiply the value of the price times the percent .11 & add what you got 2.97$ to 27

Evaluate the expression when a=10 2a+3 =

Answers

Answer:

23

Step-by-step explanation:

2(10)+3=

20+3

=23

their correct its 23

Carl’s cats weigh a total of 12 kg (kilogram). Bo weighs 512kg. Tommy weighs 213kg. How much does Suzi weigh? Estimate:
now what is suzi exact weight
Find Suzi’s exact weight:

Answers

Answer: I need some more context, but assuming we add all 3 weights together, the answer would be 737 kg (roughly 1624 pounds)

Step-by-step explanation:

Show me how to do this on paper i need it right now

Answers

Answer:

Step-by-step explanation:

32 x 10 = 320

32 x 4 = 128

320 + 128 = 448

Mr. Smith's class has collected 72 cans in a food drive. They plan to sort the cans into bags, with an equal number of cans in each bag. Write an expression to show how many cans there will be in each bag.

Answers

Answer:

C

Step-by-step explanation:

They are dividing the number of cans in to x bags equally.

Answer:

C

Step-by-step explanation:

Its c because your finding how many cans are in each bag so you will divide cans by bags. For example 72/8=9 bags

The table below shows the transportation method of employees at a certain company. What percent of employees walk to work ?

PLS PLS SHOW HOW U SET UP THE PROBLEM DONT JUST GIVE THE ANSWER WITHOUT SHOWING THE WORK ITS DUE IN A FEW HOURSS PLS

Answers

Answer:

0.5 or 1/2

Step-by-step explanation:

total number of employees=1400

758+530+7+105=1400

walking=7*100=700

700/1400=0.5

I got you!
The answer is 0.5

what is the area of a parallelogram with a length of 9in and a height of 10in and a width of 8in

Answers

Answer:

72 sq in.

Step-by-step explanation:

I'm not sure what you mean, but it sounds like the base is 9 in, the side is 10 in, and the height is 8 in. If so, the area is 9 * 8 = 72 sq in.

Answer:

i think the person above is correct

Step-by-step explanation:

The table shows the number of blue marbles and red marbles that four friends have collected.


Which person has the HIGHEST!!!! ratio of blue to red marbles?

Jasmine

Aaron

Lucian

Gretchen

Answers

Answer:

Gretchen

Step-by-step explanation

Jasmine: 12/10 : 1

Aaron: 3/2 : 1

Lucian: 1 : 1

Gretchen: 7 : 1

Gretchen has the most blue marbles :/

Write 28 x 32 in commutative property. No links!

Answers

32 x 28

you just have to flip them, and it'll be commutative! :D

PLS HELP!! ME I NEED HELP!!!!

Answers

Answer:

i think its c

Step-by-step explanation:

The product is a positive exponent

2/5 divided by 6/7 in FRACTION FORM

no links, out of context answers, or vile comments, ty

Answers

Answer:

Step-by-step explanation:

Find the reciprocal of the divisor

Reciprocal of

6/7 : 7/6

Now, multiply it with the dividend

So, 2/5 ÷ 6/7 = 2/5 × 7/6

= 2 × 7/5 × 6

= 14/30

After reducing the fraction, the answer is

7/15

Which answer choice shows the correct width and length of a rectangle with a perimeter of 220 inches?


A. Length: 40 in.; Width: 62 in.
B. Length: 11 in.; Width: 20 in.
C. Length: 10 in.; Width: 20 in.
D. Length: 50 in.; Width: 60 in.

Answers

The answer is B just multiply the two numbers and it’ll equal 220

YOU BE THE TEACHER Your friend finds the slope of the line shown. Student work is shown. A line graphed on a coordinate plane. The line passes through the points at ordered pair 2 comma 3 and ordered pair 4 comma 1. A calculation is shown for the slope of the line. The first line reads, m equals start fraction 3 minus 1 over 4 minus 2 end fraction. The second line reads, equals start fraction 2 over 2 end fraction. The third line reads, equals 1.

Answers

Answer:

The slope of the line is -1

Plz, help! Plz, write answer in complete sentences!

Answers

Answer:

18

Step-by-step explanation:

If 4050 divided by the mystery number is 225, then 4050 divided by 225 is the mystery number. 4050 divided by 225 = 18, so 18 is the mystery number.

The answer is 18!


Step by step:
So 4050 divided by that unknown/ mystery number is 225. Now you do 4050/225 and your total is 18!!

Select all the expressions that equal -2 − (-7).

Answers

Answer:

-2 + |-7|

and for other you can write -2 + 7

Answer : -2 + |-7|

Step - by - step explanation :

First, we have to find out what -2 - (-7) equals . . .

-2+7 --> 5

Second, check what all the other expressions equal . . .

2 + (-7) --> -5

-2 + (-7) --> -9

2 + 7 --> 9

-2 + |-7| --> -2 + 7 --> 5

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