Mathematics Middle School

What is the measure of angle B in the triangle?

This triangle is not drawn to scale.

Enter your answer in the box.

m∠B=
°




A triangle labeled ABC with the angles A forty degrees, angle B parenthesis two x minus thirty parenthesis degree, angle C parenthesis x plus twenty parenthesis degrees


Answers

Answer 1
the interior angles of a triangle add up to 180 degrees

40 + 2x - 30 + x + 20 = 180
3x + 30 = 180
3x = 180 - 30
3x = 150
x = 150/3
x = 50

< A = 40
< B = 2x - 30.....2(50) - 30 = 70 <===
< C = x + 20......50 + 20 = 70
Answer 2

Answer:that answer to the test is 70


Step-by-step explanation:


Related Questions

What does property mean when it comes to mathematics

Answers

In math, properties demonstrate general rules that are used in calculations. The most commonly used properties in day-to-day math are the properties of addition and multiplication. The commutative property of addition, for example, states that no matter how you order the numbers when adding, the result is the same.

What are the terms in the expression 3z+5x+7?

3z, and 5x

3z, 5x, and 7

7

3, and 5

Answers

3z, 5x, and 7 are the terms in the expression 3z + 5x + 7

Because 3z, 3z, and 7 are in the question, those are the like terms.

this was due three days ago plz help me and explain how u got it

Answers

12. would be -13 because 130 divided by 10= 13 just add a negative
13. would be -12 because 144 divided by 12= 12 just add a negative
14. would be 3

Complete the statement: 0.6L = _____ mL.

0.006

60

600

0.06

Answers

From L to mL multiply by 1000
So 0.60 x 1000
= 600 mL

Mrs. Bull spilled coffee on her computer during the first week of school! The total cost after tax to repair it is
represented by 0.08(50h) + 50h , where h represents the number of hours it takes to repair her computer.
What part of the expression represents the amount of tax Mrs. Bull has to pay? Explain. (5 points)

Answers

0.08(50ℎ) + 50ℎ , where h represents the number of hours

0.08 x 50 + 50 = 54.

Move the decimal 2 spaces to the right.

$5400 is the price Mrs. Bull has to pay.

What is 1 1/2 in percentage?

Answers

First, get the mixed number into a decimal. 1 [tex]\frac{1}{2}[/tex] can be also written as 1 + [tex]\frac{1}{2}[/tex]. We know that [tex]\frac{1}{2}[/tex] equals to 0.5, so 1 + 0.5 equals 1.5.

Now convert the decimal into a percentage by moving the decimal point two places to the right and adding a % sign.

1.5 = 150%

So, 150% is the answer.

why does the division property include C does not equal 0

Answers

Here's why C cannot equal 0:

Fractions are ratios of integers. However you cannot divide by 0 or have 0 in the denominator. When you try to divide by 0, the result comes out as undefined. Having an undefined term will not help you solve inequalities or equations.

what is the followinh are exterior angles

Answers

Well, the exterior angles are angles 4, 5, and 6

determine translation

Answers

The translation moved point B(-5, -2) to B'(6, -5). Although a graph isn't necessary, it helps visualize what happened.

What happened to the x-coordinate of B?  It changed from -5 to 6, an INCREASE of 11.  So point B moved 11 units to the RIGHT.

What happened to the y-coordinate of B?  It changed from -2 to -5, a DECREASE of 3.  So point B moved 3 units DOWN.

How to set up the problem

Answers

x is the amount of money per hour ie 40
plus the additional 1000 he made in the special project 
and since he made 7420

the equation is 40x+1000=7420

I need help I can't figure out how to do this. I have to find the value of v. 4/5(v−7)=2

Answers

9.5 because 9.5-7 is 2.5. 2.5 times 4/5 is 10/5 which is equivalent to 2. 4/5(2.5-7)=2
Final answer:

The value of v in the equation 4/5(v−7)=2 is found by first multiplying both sides by 5/4 to cancel the fraction. Then, add 7 to both sides, which gives v = 9.5 as the solution.

Explanation:

To find the value of v, we need to isolate the variable. We start with the equation 4/5(v−7)=2. Here's how you solve it:

Multiply both sides of the equation by 5/4 to cancel out the fraction on the left side:Simplify the equation:Add 7 to both sides to solve for v:Convert 7 to a fraction with a denominator of 2 to add it to 5/2:Add the fractions:Simplify the sum:Convert the fraction to a mixed number or decimal if needed:

The value of v is 9.5.

Which number line represents all of the values of x for the equation x2 = 36?

A number line is shown from negative 24 to 0 to positive 24. There are increments of 6 on the number line, and all these increments are labeled. A dot is shown on positive 18 and is labeled as p.
A number line is shown from negative 24 to 0 to positive 24. There are increments of 6 on the number line, and all these increments are labeled. A dot is shown on positive 6 and is labeled as p.
A number line is shown from negative 24 to 0 to positive 24. There are increments of 6 on the number line, and all these increments are labeled. A dot is shown on positive 18, another dot is shown on negative 18, and are labeled as p and q, respectively.
A number line is shown from negative 24 to 0 to positive 24. There are increments of 6 on the number line, and all these increments are labeled. A dot is shown on positive 6, another dot is shown on negative 6, and are labeled as p and q, respectively.

Answers

x^2 = 36...take the square root of both sides, eliminating the ^2
x = (+-) square root 36
x = (+-) 6

so x = -6 and x = 6

answer is : its the one where a dot is shown on 6 and another dot on -6, and are labeled as p and q ,respectfully
Sorry for the late answer but the answer is B because 6 x 6 is 36. The reason I thing its B is because the question is only asking for positive 36.

P = W/t solve for W?

Answers

you have p = w/t

first, multiply both sides by t:

t*p = w/t
tp=w

then divide both sides by p and you get:

t/p = w / p
{T=W/P}
and you've solved for t
Step 1: Multiply both sides by t.pt=wStep 2: Flip the equation (just so it makes a little more sense and looks easier)w=pt

one table sale has 75 cookies. Another table has 60 cupcakes. which table allows for more rectangular arrangements when all the cookies and cupcakes are displayed?

Answers

60 cupcakes because u can put 5 rows with 12 in each or u can do 12 rows with 5 in each.

Samantha says that (64)–3 = 6. Is she correct? Why or why not?

Answers

No, she is not correct. If you subtract 3 from 64, you will get 61.
She is wrong because 3 subtracted from 64 isn’t 6 it is 61.

Two women start at the same point. They walk in opposite directions for 3 meters, then turn right and walk another 4 meters. How far apart are they

Answers

14 meters apart from each other

What is Canada in 117 in a ratio of 1:8

Answers

Canada is 24 in a ratio of 1:8
CANADA anyway it is 24 in a ratio of 1:8 I believe

What is the perfect cubes between 1000 and 3000 that are even numbers

Answers

Final answer:

The even perfect cubes between 1000 and 3000 are 1000 and 1728, which are the cubes of 10 and 12 respectively.

Explanation:

The perfect cubes between 1000 and 3000 that are even numbers can be found by determining the cubes of integers that fall within this range. We start by taking the cube root of 1000, which gives us approximately 10. Then we take the cube root of 3000, which gives us approximately 14. So, we have to find the cubes of numbers from 10 to 14.

Here is how we find them:

10^3 = 100011^3 = 133112^3 = 172813^3 = 219714^3 = 2744

Among these, the even cubes are 1000 and 1728, which are cubes of 10 and 12 respectively. Thus, 1000 and 1728 are the perfect cubes that are even numbers within the specified range.

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Which is bigger 1/3 or 0.33

Answers

They are the same because 1/3 is 1 divide 3 is equal to 0.33333333 which is like forever 3 so it would be 0.33
1/3. 1/3 is bigger because it is 0.33 repeated, while 0.33 = 0.330

Hope this helps!

How would you do this? 2x+10=5y-4 solve for y

Answers

+4 on both sides
2x+14=5y

/5 on both sides
[tex] \frac{2x+14}{5} [/tex] = y

Given x is less than y compare the following expressions and determine which is greater 2 x - y or 2y - x explain your answer

Answers

2y-x is greater. x<y therefore 2x < 2y

After two plays the wildcats gained a total of 16 yards. If X represents the number of yards for play one, and Y represents the number of yards for play two make a table for possible values of X and Y. Graph the ordered pairs and describe the graph

Answers

The equation for this problem would be:
x+y = 16
Rearranging the equation, it can be expressed as:
y = 16 - x

To obtain ordered pairs, replace random values of x up to 16 to find the value of y. The ordered pairs are tabulated and the graph is shown in the attached picture.

Help me please

Identify the underlined place in 94.9269. Then round the number to that place.

A) thousandths; 94.93

B) hundredths; 94.92

C) hundredths; 94.93

D) thousandths; 94.92

Answers

If the underlined number is the second from the decimal, then it will be C. If the underlined number is the third from the decimal, then it will be A.
A thousandths; 94.93

Use the partial quotient strategy to solve 74 ➗ 3

Answers

Here you go. Attached a photo of the answer.
74 / 3 = 24.66
Final answer:

To solve 74 ÷ 3 using the partial quotient strategy, you repeatedly subtract multiples of 3 from 74 until you reach a number less than 3. The final quotient is 24 with a remainder of 2.

Explanation:

To solve 74 ÷ 3 using the partial quotient strategy, you repeatedly subtract multiples of 3 from 74 until you reach a number less than 3. Here are the steps:

Start with 74 and divide it by 3. The quotient is 0.Multiply 0 by 3 to get 0, and subtract it from 74 to get 74.Add 1 to the quotient, which becomes 1.Multiply 1 by 3 to get 3, and subtract it from 74 to get 71.Add 1 to the quotient, which becomes 2.Multiply 2 by 3 to get 6, and subtract it from 71 to get 65.Continue this process until you reach a number less than 3. The final quotient is 24 with a remainder of 2.

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What is the mixed number for 4.8 in simplest form

Answers

4 would be the whole number. 0.8 would be 4/5 so the mixed number is 4 and 4/5.
4 4/5 would be your answer


Hope this helps

The seventh grade class contributed $60 toward refreshments and the sixth grade contributed $50. How much money did the seventh grade class contribute for each dollar contributed by the sixth grade class

Answers

Seventh-grade contribution : sixth-grade contribution

$60 : $50

60/50 : 50/50

6/5 : 1

$1.2 : 1


The seventh graders donated $1.20 (one dollar and twenty cents) for every dollar donated by the sixth graders.


Apply the distributive property to factor out the greatest common factor.
56+32=

Answers

factor both of the numbers first:

56 = 2x2x2x7
32 = 2x2x2x2x2

Take out the common factors: 2x2x2( 7 + 2x2)

Simplify: 8(7 + 4)

Hope this helps!
and May the Force Be With You

-Jabba

0.3 is 10 times as great as what decimal?

Answers

0.3 is 10 times as great as 0.03

A number is considered as a decimal number, if the number has a fractional part.

0.03 is 10 times as great as 0.03

Let the number be x.

10 times as great as a number is represented as:

[tex]10 \times x[/tex]

So, we have

[tex]10 \times x = 0.3[/tex]

Solve for x

[tex]x = \frac{0.3}{10}[/tex]

[tex]x = 0.03[/tex]

Hence, the number is 0.03

Read more about decimals at:

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What is the simplified form of the following expression? Square root 1/169
1/338
1/13
13
2/69

Answers

Square root 1/169 = 1/13
answer

1/13

Answer:

The answer is [tex]\frac{1}{13}[/tex]

Step-by-step explanation:

In order to determine the simplified form, we have to change the number inside of square root. We need to find a number with an exponent that represents the same number that is inside of the root.

Then, we  have to use the rules of the powers and the rules of the roots.

[tex]\sqrt{\frac{1}{169} } \\\sqrt{\frac{1}{(13)^2} }\\\sqrt{(\frac{1}{(13)})^2 }\\\frac{1}{13}[/tex]

Finally, the answer is [tex]\frac{1}{13}[/tex]

The procedure to extract a number from a root is finding an expression of a number with a power, and that power has to be a multiple of the grade of the root.

write the fraction below as a sum or difference 5x+7 over 4

Answers

The answer is: 1.25x + 1.75
[tex] \frac{5x+7}{4} = \frac{5x}{4} + \frac{7}{4} [/tex]
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