Mathematics Middle School

I’ve asked 3 times and no one knows pls helpahh

Answers

Answer 1

Answer: x = 21

Explanation:

The two angles shown combine to 180 degrees because the angles form a straight line.

(3x+18)+(4x+15) = 180

7x+33 = 180

7x = 180-33

7x = 147

x = 147/7

x = 21

Related Questions

HELP! I FORGOT HOW TO DO THIS!!!!

Answers

Answer: for question 11. the answer is 0.000001

Step-by-step explanation:

Plz complete the table.

Answers

Answer:

Step-by-step explanation:

divide 1320 by 8 to see how many feet per minute and then divide that number by 5,280 ft to see your final answer.

Sally spelled 2 words incorrectly out of 20 spelling words on the test. What percent grade did Sally get on the test?

Answers

Answer:

90%

Step-by-step explanation:

So Sally gets 18/20 of the questions correct then you need to make the denominator of the fraction to 100 which makes a percent. So you multiply both the numerator and denominator by 5:

90/100

which is equal to 90%

Hope this helps!

Answer: 90%

Step-by-step explanation:

Reason about the correct unit of measure.
Explain your reasoning, using complete sentences.

Answers

Answer:

they each

Step-by-step explanation:

1. Lina walks 500 feet because 500 yards is equal to 1500 feet. Elena’s house is farther away meaning Elena walks a longer distance.

2. Lin’sFish tank is the smaller one because hers is only 20 cups of water and 20 cups is a much smaller unit than 20 gallons meaning that Elena‘s fish tank is the bigger one.

3.Alayna’s brother is the one that weighs 40 kg because he is much bigger and a kilogram is equal to 2.2 pounds meaning that Lynn’s brother is the smaller one.

ill give brainliest and 25 points to whoever makes me laugh

Answers

Answer:

Sorry mam Bin laden is not in the mood of joke today hope jeff bezus would do that for you

Answer:

Today at the bank, an old lady asked me to help check her balance. So I pushed her over.

Step-by-step explanation:

PLEASE HURRY WILL GIVE BRANLIEST!!!

Answers

i have concluded the answer is x=6.8

The ratio table shows the weights for different amounts of snow. Find the unit rate in pounds per cubic foot. Give your answer in decimal form.

Answers

Answer:

1.75

Step-by-step explanation:

The answer to your question is 8.75

Name _____________________________________ Date ______________________________Pd______
PERCENT APPLICATION
Use your understanding of percentages to complete the table below. Be sure to show your work.
Unit: Percents Homework 4
PROBLEM
PROPORTION
WORK AND SOLUTION
1. Francis heard that a car stereo system was on sale for 30% off. If the sale price was $57.75, what was the original price of the stereo?
2. Mr. Robins earns a commission on each airfare he books. At the end of the day, he had booked $208.60 worth of airfare and earned $31.29. What is Mr. Robins’ commission rate?
3. The bill at a restaurant came to $136.40. The patrons decided to leave a 15% tip. What was the total bill including tip?
4. Winter coats are marked
st
70% off on February 1 . If a
coat costs $57.75 on January 31st, how much will it cost on February 1st?
Answer the multiple choice question below.
5. At West Middle School, there are 420 students who eat lunch. The school lunch line always offers pizza on Friday’s. If 65% of students purchase pizza on Friday, then how many pizza lunches were purchased?
A. 273 B. 147 C. 83 D. 129
©Maneuvering the Middle LLC, 2016

Answers

maybe try cutting it to it’s just the problem it’s hard to understand sorry:(

Cut it so it’s easier

NEED HELP I WILL MARK BRAINLIEST!!! AN EXPLANATION APPRECIATED !! HURRY

Answers

Answer:

A. Natural numbers

B. Whole numbers

C. Integers

D. Rational numbers

E. Irrational numbers

Step-by-step explanation:

Sorry, but I don't know how to explain it. If you need help, I suggest searching it up on Google.

Sorry :(

It takes Tyreke 28 minutes to bike to his school, which is 7 miles away

If Tyreke continues to pedal at this pace, how long would it take for him to get to the soccer field, which is 8.8 miles away from school?

Answers

Answer:

35.2 minutes

Step-by-step explanation:

Time taken=28min

Distance=7miles

Speed=7/28=0.25milesperminute

Time=distance/speed

Time=8.8/0.25

=35.2 minutes

35.2 hopes that Helps

In a triple batch of spice mix, there are 15 teaspoons of salt and 6 teaspoons of garlic powder. how much salt is used with 8 teaspoons of garlic powder?
in a triple batch of spice mix, there are 15 teaspoons of salt and 6 teaspoons of garlic powder. how much salt is used with 8 teaspoons of garlic powder?

Answers

20 teaspoons

Per batch amounts:
Salt = 15/3 = 5 teaspoons
garlic powder = 6/3 = 2 teaspoons

8 teaspoons of garlic powder number of batches:

8/2 = 4 batches

4 batches of salt

4 * 5 = 20 teaspoons

Answer:

2 teaspoons

Divide 15 by 5:

15/5 = 3

Divide 6 by 3:

6/3 = 2

Thus, there are 2 teaspoons of garlic powder used :)

Hope this helps

I NEED HELP PLEASE!!!!

Answers

Answer:

see attached

Step-by-step explanation:

The missing measures can be found by making use of the properties of tangents, special triangles, trig functions, and circles.

Radii

All of the incircle radii are the same length:

CJ = CK = CL = 4

Angles

All of the segments to the incenter from the triangle vertices are angle bisectors. Of course, the sum of angles in a triangle is 180°, and the acute angles in a right triangle are complementary.

∠CML = ∠CMJ = 20°

∠CPL = ∠CPK = 40° . . . . . (∠P = 180° -40° -60° = 80°)

∠CNJ = ∠CNK = 30°

The central angles are complementary:

∠MCL = ∠MCJ = 70°

∠PCK = ∠PCL = 50°

∠NCJ = ∠NCK = 60°

Tangents

The two tangents from a vertex are congruent. Each will be the radius divided by the tangent of the (half) vertex angle.

ML = MJ = 4/tan(20°) = 11.0

PL = PK = 4/tan(40°) = 4.8

NJ = NK = 4/tan(30°) = 6.9

Angle bisectors

The length from each vertex to the incenter will be the radius divided by the sine of the (half) vertex angle.

MC = 4/sin(20°) = 11.7

PC = 4/sin(40°) = 6.2

NC = 4/sin(30°) = 8.0

Additional comment

The given dimensions are slightly off. The angle at M is 19.9831°, or the length LM is 10.9899 units, or the radius is 4.00367. In order to keep the numbers nearly consistent, we have rounded to one decimal place. The 30° triangle is the only one with an angle that has a rational trig function (sine).

if a = and b = -1 what is the value of ab -b^2

Answers

Answer:

-2

Step-by-step explanation:

To solve you need to replace the variables with their numbers.

3(-1) - (-1^2)

-1 x -1 = -1

3 x (-1) = -3

-3 - (-1) =

-2

A rental hall has 60 tables.
55% of the tables have 10 chairs at each table.
The remaining 45% of the tables have 8 chairs at each table.

Complete the model.
Then complete the statements to find the total number of chairs in the rental hall.

Answers

Answer:

Plz name me brainlieset thank you

Step-by-step explanation:

55% of the tables would be 33 tables times 10 chairs equals 330 Chairs That mean 60 Tables -33 tables Leaves you with 27 tables Times 8 Chairs Equals 216 Chairs So 330 and 216Equals 546 chairs

Answer:

55% 10 chairs:33

45% 8 chairs:27

330

216

546

Step-by-step explanation:

i just got it right

Overnight temperature decreased by 15 1/2 degrees F. If the temperature began at -3.6 degrees, What is the current temperature?

Answers

Answer:

your answer is -19.1

Step-by-step explanation:

you add -3.6 and -15.5 to get -19.1

to determine that 15.5 is negative look at key words surrounding it, like decreased, that tells you that your number is a negative.

hope this helped :)

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