Evaluate.

(2a−13)÷b/15 when a=−2/5 and b=−8.25

Enter your answer as a simplified mixed number in the box

Answers

Answer 1

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

The value of (2a - 13) ÷ b/15 when a = -2/5 and b = -8.25 is  [tex]25\frac{75}{825}[/tex]

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

(2a - 13) ÷ b/15

The value of (2a - 13) ÷ b/15 when a = -2/5 and b = -8.25.

= (2a - 13) ÷ b/15

= (2 x (-2/5) - 13) ÷ -8.25 / 15

= (-4/5 - 13 ) ÷ -8.25 / 15

= (-4 - 65) / 5 ÷ -8.25 / 15

= -69/5 ÷ -8.25/15

= -69/5 x -15/8.25

= 69 x 3 / 8.25

= 207 / 8.25

= 20700/825

We will write this in a mixed fraction.

= [tex]25\frac{75}{825}[/tex]

Thus,

The value of (2a - 13) ÷ b/15 when a = -2/5 and b = -8.25 is  [tex]25\frac{75}{825}[/tex]

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Related Questions

please please i need help i will mark u brill

Answers

Answer:

Step-by-step explanation:

65÷b+8×4=20

Put the value of b=5 in equation

65÷5+8×4=20

According to BDMAS rule

13+32=20

45=20

Bring the terms on one side

45-20=25 Answer

Answer:

false

Step-by-step explanation:

use bidmas :)

ok, let's rewrite this for b = 5

65 ÷ 5 + 8 × 4 = 20

now put brackets

(65 ÷ 5) + (8 × 4) = 20

          (13) + (32) = 20

              13 + 32 = 45

                     45 ≠ 20

false

hope this helped and good luck!

-cheesetoasty

Explain the parts of an algebraic expression and what algebraic expressions can represent.

Answers

Step-by-step explanation:

Answer: An algebraic expression is a mathematical expression that consists of variables, numbers, and operations. We can use algebraic expressions to represent unknown number situations involving addition, subtraction, multiplication, and division.

Answer:

Answer: An algebraic expression is a mathematical expression that consists of variables, numbers, and operations. We can use algebraic expressions to represent unknown number situations involving addition, subtraction, multiplication, and division.

Step-by-step explanation:

Its The sample

EDG

Can someone help me please? and tysm for the people who helped me! <3

Answers

Answer:

$2141.75

Step-by-step explanation:

Please Help (no links)

Answers

Answer:

The answer is d

John painted 10 walls in 2 hours. Write an equation comparing walls
painted to hours. Explain why John can use this equation to find the
number of walls he could paint in one hour. Then solve.

Answers

Here is your answer to the question

A store is giving out cards labeled 1 through 10 when customers enter the store. If the card is an even​ number, you get a ​% discount on your purchase that day. If the card is an odd number greater than​ 6, you get a ​% discount.​ Otherwise, you get a ​% discount. The table shows the results of customers. What is the relative frequency for each​ discount? Use pencil and paper. If the manager of the store wants approximately half of the customers to receive the ​% ​discount, does this seem like an appropriate​ method? Explain.

Answers

Answer:

yrbffbfzbc

Step-by-step explanation:

brfzfbfz

−7x−3≤ 25
Solve the inequality and graph the solution on the line provided.
—————————————————
-12 -10 -8 -6 -4 -2 0 2 4 6 8 10 12
Pretend this is a number line
Can anyone please help me with this I really need it done, please

Answers

and you graph it from -4 to the right with close circle

Hope this help

Sorry for the blurryness. Please answer correctly and I guarantee I will mark you brainliest :)

Answers

Answer:

42

Step-by-step explanation:

37-79=42

the answer to this question

Answers

the answer to this problem is 3

Answer:

3

Step-by-step explanation:

According to the graph, where was Diego when he was going the slowest during the race?

Answers

Answer:

Excuse Me, I believe you forgot to put your picture in your question! I would highly recommend reposting your question for the desired answer(s) that your looking for!

Have a GREAT day!

Yours Truely, TheAnimeCatUwU

Answer:

https://brainly.com/question/22920148?answering=true&answeringSource=feedPublic%2FhomePage%2F1

Step-by-step explanation:

In the following diagram, a quarter circle has been constructed using an isosceles right triangle whose legs measure 8 inches. Which of the following represents the area of the shaded region, rounded to the nearest tenth of a square inch?

Answers

Answer:

Area of Shaded Area = 18.3

Step-by-step explanation:

P.S - The exact question is -

Given - In the following diagram, a quarter circle has been constructed using an isosceles right triangle whose legs measure 8 inches.

To find - Which of the following represents the area of the shaded region, rounded to the nearest tenth of a square inch?

Proof -

We know that,

Area of a quarter circle = [tex]\frac{1}{4} \pi r^{2}[/tex]

Also,

We know that ,

Area of isosceles Triangle = [tex]\frac{1}{2}*Base*Height[/tex]

Now,

Given that,

Radius of quarter circle = 8 inches

Base of Isosceles Triangle = 8 inches

Height of Isosceles Triangle = 8 inches

∴ we get

Area of a quarter circle = [tex]\frac{1}{4} \pi (8)^{2}[/tex] = 16[tex]\pi[/tex]

Area of isosceles Triangle = [tex]\frac{1}{2}*8*8[/tex] = 32

Now,

Area of Shaded area = Area of a quarter circle - Area of isosceles Triangle

                                 = 16[tex]\pi[/tex] - 32

                                 = 50.265 - 32

                                 = 18.265 ≈ 18.3

⇒Area of Shaded Area = 18.3

PLEASE HELP! I WILL MARK BRAINIEST AND I WILL LOVE YOU SO MUCH!

Answers

Answer:

Step-by-step explanation:

c

2x1+0x2+3x3=3
4x1-3x2+7x3=5
8x1-9x2+15x3=10
solve the system using Gaussian or Gauss-Jordan elimination

Answers

[1] … … 2x₁ + 0x₂ + 3x₃ = 3

[2] … … 4x₁ - 3x₂ + 7x₃ = 5

[3] … … 8x₁ - 9x₂ + 15x₃ = 10

Since [1] is already free of x₂, you might as well start by eliminating x₂ from the other two equations. Add -3 times [2] to [3] :

-3 (4x₁ - 3x₂ + 7x₃) + (8x₁ - 9x₂ + 15x₃) = -3 (5) + 10

-12x₁ + 9x₂ - 21x₃ + 8x₁ - 9x₂ + 15x₃ = -15 + 10

-4x₁ - 6x₃ = -5

[4] … … 4x₁ + 6x₃ = 5

Now eliminate x₃ in [1] and [4]. Add -2 times [1] to [4] :

-2 (2x₁ + 3x₃) + (4x₁ + 6x₃) = -2 (3) + 5

-4x₁ - 6x₃ + 4x₁ + 6x₃ = -6 + 5

0 = -1

which is a contradiction. This means the system has no solution.

Please help :3/ will mark brainliest !!! / please give genuine anwser .

Answers

Answer:

26m

Step-by-step explanation:

14m x b = 364m^2

b = 364m^2 / 14m

b = 26m

4x+12<-8
What is the solution set for the inequality?

Answers

Answer:

x<-5

Step-by-step explanation:

help me..........................

Answers

Answer:

5 zeros

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

There are 5 zeroes in the multiple of ten

A nonlinear function Group of answer choices is a function with a slope that is not constant. is a concept that only applies to the case of a single or two explanatory variables since you cannot draw a line in four dimensions. makes little sense, because variables in the real world are related linearly. can be adequately described by a straight line between the dependent variable and one of the explanatory variables.

Answers

Answer:

is a function with a slope that is not constant.

Step-by-step explanation:

A linear function has a positive relationship and as such an increase in one variable (input variable) causes an increase in the other variable (output variable) i.e the variables are directly proportional. Thus, the graph of a linear function is a straight-line and its slope is always constant.

On the other hand, nonlinear function has a negative relationship and as such an increase in one variable (input variable) causes a decrease in the other variable (output variable) i.e the variables are inversely proportional.

This ultimately implies that, the graph of a nonlinear is a curved line and whose direction is constantly changing.

Hence, a nonlinear function is a function with a slope that is not constant. An example of a nonlinear function is a quadratic function or equation.

please answer and explain #17 :)

Answers

Answer:

Solution given:

we have

m<PTQ=m<RTS

x+20=3x+12.

20-12=3x-x

x=

[tex] \frac{8}{2} [/tex]

now

16.m<PTQ=x+20=4+20=24°

17.

again

m<PTR+m<PTQ=180°[supplementary]

so

m<PTR=180°-24°=156° is your answer

Answer:

156°

Step-by-step explanation:

I see you have already found the x so now plug it in.

(4)+20=24

(4)(3)+12= 24

Since they are vertical angles, then they are congruent, thats why they are equal. By now I think you should know that a straight line is equal to 180, so lets take 1 angle to find the missing one.

We can also see that ∠PTR and ∠RTS are also vertical angles, so they are also congruent. So we only use one, 180-24=156

the answer is 156 because ∠PTR and ∠PTQ are in the same line making them supplementary.

Does that make sense?

Karen paid $62 for pair of shoes. Three days later she noticed the shoes were on sale for $50. What was the percent of change

Answers

Answer:

24%

Step-by-step explanation: c:

Ten field hockey teams are competing in a tournament. Only the top three teams will be recognized as the first place, second place and third place winners. In how many ways could the ranking of the top three teams occur?

Answers

Answer:

The ranking of the top three teams could occur in 720 ways.

Step-by-step explanation:

The order in which the teams are ranked is important, that is, for example, Oilers, Flames and Canucks is a different outcome of Oilers, Canucks and Flames. This means that the permutations formula is used to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

[tex]P_{(n,x)} = \frac{n!}{(n-x)!}[/tex]

In how many ways could the ranking of the top three teams occur?

Three teams from a set of 10. So

[tex]T = P_{(10,3)} = \frac{10!}{7!} = 720[/tex]

The ranking of the top three teams could occur in 720 ways.

To complete an English exam, you must write 3 essays from a list of 7 prompts. In how many ways can you complete the exam?

Answers

Answer:

35 ways

Step-by-step explanation:

7 nCr 3 = 7!/(3!(7-3)!) = 7!/(3!*4!) = 35

Kim works at a shoe store and makes $12.50 per hour. Last week she worked 34 hours, how much will her pay check be?
$46.50


$42.50


$465.00


$425.00
Will give brainliest

Answers

Answer:

$425.00

Step-by-step explanation:

12.5 times 34=$425

find the geometric mean of 9 and 14

Answers

Answer:

foće de moçhò de casà là ocoreatane

Which of the following events has a probability of 75% or higher?
a. choosing a consonant from the word leopards
b. landing on heads when flipping a coin
c. rolling a number greater than 1 on a die
d. choosing a consonant from the word horse

Answers

Answer:

D

Step-by-step explanation:

(a)
What is the greatest odd number that can be formed using the digits 3, 8, 2 and 5?​

Answers

Is this multiply choice?

1.11. There are 37 girls and 39 boys going on a field trip with the drama club. At least 1 adult for
every 6 students will also go on the trip. Which correctly explains how to find the number of
adults needed for the trip?
(

Answers

Answer:

C

I have done the math on a calculator. :p

Answer:

C

Step-by-step explanation:

First you Just Divide

and the remainder

will be R4 and it's 76÷6

AY YOOO HELP MEH. PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSssssssssssssssssSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS

Answers

Answer:

Number 1 is 10

number 2 is D (6 to the second power)

Step-by-step explanation:

Step-by-step explanation:

the first answer is 10

the second answer is evaluate 6 squared

you roll a six sided number cube and flip a coin what is the probability of rolling a number greater than 3 and flipping tails write your answer as a fraction in simplest form . will give brainliest to whoever gets an answer first

Answers

Answer:

i dont know

Step-by-step explanation:

Answer:

1/4

Step-by-step explanation: 3/6 times 1/2 = 1/4 :)

Ethan rolls the number cube and then spins the arrow on the
spinner. A list of all the possible outcomes is shown.

Answers

Answer:

B 1/2

Step-by-step explanation:

This is right

The probability that the sum of the two numbers is odd, given that the product is 6 will be 2/3. Option C is correct.

What is probability?

Probability is synonymous with possibility. It is concerned with the occurrence of a random event. Probability can only have a value between 0 and 1.

Ethan cranks the arrow on the spinner after rolling the number cube. There is a list of all conceivable outcomes.

{(1, 1), (1, 2), (1,3), (2, 1), (2, 2), (2, 3), (3, 1), (3, 2), (3, 3), (4,1),(4,2), (4,3), (5, 1), (5,2), (5,3), (6, 1), (6,2), (6,3)}

The no of sets having the sum of the number is odd=9

The no of sets having the product of the number is 6=3

The total number including the two conditions=3+9=12

Probability is found as;

P=12/18

P=2/3

The probability that the sum of the two numbers is odd, given that the product is 6 will be 2/3.

Hence, option C is correct.

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What is the surface area of a triangular prism

Answers

Here’s the step of doing it
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