Mathematics Middle School

Which expression has a value of 31 when x = 6, y = 10, and z = 11?
A.
3xyz

B.
2x + 3y – z

C.
4yz – 2x

D.
xy – 2z

Answers

Answer 1
C explanation I already did this question
Answer 2
the answer is B

2x 6=12
3x10=30
12+30=42
42-11=31

Related Questions

Am I correct?
Tell me if I’m wrong and what is the correct answer.

Answers

Answer:

3.6 is the correct answer because it is bigger,

Step-by-step explanation:

it’s the other way around

What is the range of the scatter plot shown in the picture?

Answers

Answer:

2

Step-by-step explanation:

Range is all y values

2 is the answer …………….

Two boats leave the same harbor in Hawaii at the same time. Boat A is traveling due west at a speed of 45mph. Boat B is traveling due north at a speed of 60mph. How far apart will the boats be in 1 hour? How far apart will the boats be in 3 hours?

Answers

I quickly did this on paper and here is my answer I’m not 100% sure I’m correct but here it is

In 1 hour the boats will be 15 miles apart. In 3 hours the boats will be 45 miles apart.

Hope this helps :D
For and hour it’ll be 15 and for 3 it’ll be 45

solve and find the missing angles.

Answers

Answer:

60°

Step-by-step explanation:

Since this is an equilateral triangle all the angles and sides are the same.

180÷3=60°

All the angLes will be 60°, because in a triangle ball angles must add up to 180°.

Hope this answers your question.

60 DEGREES!!!!!!!!!!!!

Example Given


Find a or b

a = 20. b = ? c = 25



Find b or a. c^2 - a^2 = b^2



25^2 - 20^2 = c^2

625 - 400 = 225

Square Root of 225 is 15


QUESTION

a = 3 b = 4 c = ?

Answers

the answer is 5

a^2+b^2=c^2
9+16=25
sq root of 25 is 5

Answer:

the answer is 5

Step-by-step explanation:

For each pair of points, think about the line that joins them.

For which pair(s) is the line parallel to the x-axis?

Select all correct answers.

Answers

Answer:

fd

Step-by-step explanation:

spañol

Answer:

The answer might be number b

just answer the question in the image

Answers

Answer:

The conversion factor is upside down.  The tsp will not cancel

Step-by-step explanation:

The conversion factor is upside down.  The tsp will not cancel

15 tsp * 1 tbsp

            ---------  = 15/3  tbsp = 5 tbsp

              3 tsp

The answer is 3 tsp ur welcome

solve for x in the diagram below

Answers

90°=X+3X+10

X + 3X+ 10=90
4X+10=90
90-10 =80
4X=80
80/4=20

X=20
x + (3x+10)=90
4x+10=90
4x=80
x=20

On Wednesday, the temperature changes -30 each hour for 10 hours.

Answers

Answer:

-300

Step-by-step explanation:

-30 * 10= -300

Step-by-step explanation:-300

calculate

BRAINLIEST IF correct

Answers

Answer: 4.6 cattle

Step-by-step explanation:

Since you are finding the average, you have to...

Step 1: Add all of the numbers:

4 + 1 + 9 = 14

Step 2: Divide 14 by 3 (the amount of numbers added)

14 ÷ 3 = 4.666666666667 (to be exact)

(Wishing the rancher good luck to take care of 2/3 of a cow)

Happy to help :)

-jp524

Answer:

abot 18

Step-by-step explanation:

The average number of employees that call in sick for the day over the course of a year is 25. The number of employees that call in sick on 12 days are 25, 10, 16, 39, 27, 25, 32, 25, 25, 22, 28 , and 14 Enter the sample mean and the population mean.

Answers

Answer:

it depends on the work place to play it safe i would choose 12

Step-by-step explanation:

The sample mean is equal to 24 and population mean is equal to 25

What is sample mean?

Sample mean represents the measure of the center of the data. The sample mean formula is used to calculate the average value of the given sample data.

Sample mean= sum of the terms/number of the terms

What is population?

The population in static is used for a collection of data. The population mean can be calculated by the sum of all values in the given population divided by a total number of values in the given population.

Population mean= sum of the population/ number of the population

From the given question average of entire year is 25.

According to the population mean formula the sum of the population by number of the population is nothing but the average of the entire year. Thus the population mean is 25.

According to the sample mean formula,

sample mean= sum of the terms / number of the terms

⇒(25+10+16+39+27+25+32+25+25+22+28+14)/12 = 24

Thus the sample mean is equal to 24 and population mean is equal to 25

To know more about sample mean and population mean click here

https://brainly.com/question/26509052

#SPJ2

can somone pls help me

Answers

752+136=888 I think

Answer:752+136=888

Step-by-step explanation:

good luck on prodigy

find the area of the triangle.

Answers

Answer:

answer is 17.5cm²..this might help you out..

17.5 cm is the area of that triangle

answer all for brainliest and 15 points

Answers

Answer:

-20m -11m 10m

39 16 72

6bc 9bc 50bc

7y 10y -3y

3r 90r -6r

Step-by-step explanation:

Yea the first person is correct I checked twice

Valencia climb 25 feet up a rock wall and then climbs 12 feet down to a landing area. The number of feet Valencia climbs can be represented using the expression |25| + |-12|. How many feet does Valencia climb?

Answers

Answer:

37

Step-by-step explanation:

[tex] | - 12| = 12[/tex]

the absolute value is always positive. imagine it as "how much away from zero"

37 is the answer I’m pretty sure

Can I get help plzzz

Answers

The answer is definitely 3
The answer is three.

SCHOOL IS ALMOST OVERRRRRRRRRRRR

3. Select the expression that represents the following problem: A glass holds 1/4 liter of liquid. How many glasses of liquid are in 6 liters? *

A. 6 x 1/4
B. 6 ÷ 1/4
C. 4 ÷ 6
D. 4 ÷ 1/6

Thank you

Answers

Answer: D.

totoo pong answer yan

The answer for this question is D

Please help this is urgent. | 2.Here are four expressions that have the value -1/2 : -1/4 + (-1/4), 1/2 - 1, -2 x 1/4, -1 ➗ 2 . Write five expressions:a sum, a difference, a product, a quotient, and one that involves at least two operations that have the value .

Answers

Answer:

Step-by-step explanation:

1 - 2 + 10 o lw. First find a common denominator. 3 * 5. After cross reducing, multiply across ... Divide the fraction to get a decimal answer. 21 into a an. Jinit. 5 = 1.25 ... 3 = -x +8. -8 = -8. = -5 = -X. =-1(-5) = -x (-1). = 5 = x. Set up a ratio, and cross ... Combine like terms, and solve for x. Divide both sides by 2. = x= 20. = 5-1​">4.

1-2+10 is the answer

Can someone answer the last two questions

Answers

1.Mon 2. 19 or 20 3. 4 or 3 4.it’s like stairs but
1. Mon 2.19 or 20 3. 4 or 3

which angles are adjacent to each other. SELECT ALL THAT APPLY!!!!

Answers

Answer:

all of the angles are adjacent

Select all of them!

Adjacent means to be right next to each other therefore all of them is the answer

X,Y and Z are three points on a unit sphere (i.e. a sphere with radius 1). The space
distance between any pair of the three points is √2 . An ant can only
crawl on the surface of the sphere. The ant starts from point X, passes through points Y and Z, and then returns to X. What is the shortest possible distance of this trip?
Give me an answer please.

Answers

Answer:

3cm each

Step-by-step explanation:

Please answer correctly

Answers

Answer:

9 x 10 x 7 and 9 x 4 x 5

Step-by-step explanation:

I explained in the other question you asked

Answer is 1-4-7-&-&-9-5-

10, 24, 32, 38, 40 which three are a Pythagorean triple?

Answers

24, 32, 40

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Answer:

10, 24, 32, 40

Step-by-step explanation:

pLEASE NO LINKS
correct ans only

Answers

Liza decides to bake a cake. If she uses 3/4 cups of flour to make the first cake and 1/2 cup of flour for the second cake. How many cups of flour did she use?
ANSWER: B. 1 1/4
EXPLANATION: 3/4 + 1/2 = 1 1/4

Which pair of fractions below is equivalent?
ANSWER: D. 6/8 = 3/4
EXPLANATION: Multiply each number in the fraction 3/4 by 2 (3 • 2 / 4 • 2 = 6 / 8)

4. For each of the following pair, indicate whether the number is divided by the power of 10, 100 or 1000.
10 100 1000
256.78 = 2.5678 •

460.23 = 0.46023 •

124.5 = 12.45 •

EXPLANATION:
when a decimal is divided powers of ten, the decimal is move to the right depending on how many 0’s the multiplier has.
Example: 0.2 ÷ 100(two 0’s) = 0.002

If 1/5 of my money is $80, what is 50% of my money?
ANSWER: $200
EXPLANATION:
Multiply $80 x 5 = $400
50% or HALF of $400 is $200

Question 8:
Janice is preparing a recipe that calls for 3/4 cup of oil per serving. If Janice needs to prepare 2 2/3 servings, how many cups of oil will she need?
ANSWER: 2
EXPLANATION:
2 2/3 x 3/4 = 24/12
SIMPLIFY 24/12: 2

BRAINLIEST?
i think question (8)is 2
6/8=3/4 is equivalent
200 is 50% of the money

what angles are adjacent to 10 ? select all that apply

Answers

Answer:

15 & 1

Step-by-step explanation:

The angles are adjacent are not yes by tracking
The answer is 15 and 1

Prove for any positive integer n, 1x2 + 2x3 + 3x4....n(n+1) = n(n+1)(n+2)/3

Answers

2)3+(+1)(+2)
(
k
)
(
k
+
1
)
(
k
+
2
)
3
+
(
k
+
1
)
(
k
+
2
)

I’m kinda confused with your question but imma say 20

What is the difference of 7 1/6 - 3 5/8?

Answers

Answer:

b

Step-by-step explanation:

7 1/6= 7 8/48

3 5/8= 3 30/48

simplified, that would give us 3 26/48

if we simplify that again, it would give us b, 3 13/24

b 3 13/24 we simplified it

can you please help me?

Answers

Answer:

63

Step-by-step explanation:

Given,

Percentage of correctly answered question = 63%

Total no. of questions = 100

Therefore,

No. of questions correctly answered

= 63% of 100

[tex] =100 \times \frac{63}{100} [/tex]

= 63 (Ans)

Answer:

63

Step-by-step explanation:

63% of 100 questions

Of means multiply

63% * 100

Change to decimal form

.63* 100

63

What is the area of each circle? Use 3.14 for pie Round to the nearest tenth if necessary.
WILL GIVE BRAINLIEST PLEASE HELP!

Answers

Answer:

About 13.85

Happy learning!

--Applepi101

3.14 (Pi) x radius squared (2.1x2.1= 4.41) = 13.8474

B is your answer based off choices given

I NEED THIS ASAP!!!!!!!!

Answers

i know you need this bbc
the answer is A. When you add 2 to -3 the result is -1 which is where the arrow on the number line ends
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