Answers
Answer:
35 degrees
Step-by-step explanation:
90 degrees (right angle) - 55 degrees = 35 degrees
x=90-55
x=35
Related Questions
Diego’s history teacher writes a test for the class with 26 questions. The test is worth 123 points and has two types of questions: multiple choice worth 3 points each, and essays worth 8 points each.
How many essay questions are on the test? Explain your reasoning.
Answers
Answer: 9 essay questions
Step-by-step explanation:
The test has 26 questions
The test is worth 123 points
The test has two types of questions:
Multiple choice worth 3 points each
Essays worth 8 points each
Let the number of multiple choice questions be, m, and the number of essay questions be , e.
This forms a simultaneous equation below:
m + e = 26 ... (i)
3m + 8e = 123 ... (ii)
Multiplying (i) by 3 and (ii) by 1 we get:
3m + 3e = 78 ... (i)
3m + 8e = 123 ... (ii)
Subtracting (ii) - (i) we get;
0m + 5e = 45
5e = 45
e = 45 ÷ 5 = 9
So there are 9 essay questions.
and;
m + 9 = 26
m = 26 - 9 = 17
There are also 17 multiple choice questions.
ASAP PLS ANSWER I DEAD
Answers
Answer:
Variables: you are correct
Coefficients: -2
Constant: 3/7
Step-by-step explanation:
Variables are letters used in math so you were correct.
Coefficients are numbers with a variable. So to find the coefficient you would look for a number "connected" to a variable. This would be -2 because it is being subtracted from the first term.
The constant is 3/7 because you could put it on a number line.
help me with my mth please
Answers
Answer:
6. Yes, there is a way to tell. Perpendicular when the product of the slopes equal -1. Parallel = same slope. Same line = same equation(maybe written in different ways like point-slope or standard form).
7. The equations in system 4 are parallel because they have the same slope.
1. purple box = y=-3x+5
green box = y= 4x-3
blue box = y= -2/3 + 2
Step-by-step explanation:
Need some help here please
Answers
Please help with math
Answers
Answer:
Ok here are the answers:
6: B
7: B
8: C
9: D
10: A
Have a good day! :)
Answer:
Step-by-step explanation:
6 is B (second)
7 is B (second)
8 is C (third)
9 is D (last)
10 is A (first one)
Help, please!!!!!!!!!!!!!!!!!!!!!!
Answers
Y = 10x - 6
Answer: A
Help, im timed :(((
will mark branliest
Answers
Answer: it is D)
Step-by-step explanation:
need help with 7, 8, and 9 plz :]
Answers
What is the equation of this line in standard form?
A. 6x−7y=17
B.11x−6y=13
C.6x−11y=13
D.6x−11y=−13
Answers
Answer:
A. 6x- 7y= 17
Step-by-step explanation:
Hope this helps
Please help please and please actually answer please
Answers
Answer:
#3
Step-by-step explanation:
Answer:
it's the last one
Step-by-step explanation:
last one
Khan Academy PLEASE SOMEONE HELP FASTTT!!!!
Answers
5x-18=3x+42
2x-18=42
2x=60
x=30
then plug 30 in the equation for angle a
5*30-18
150-18
132
Mr. Sonny's science class is calculating the average number of blinks per minute. Jan blinks 126 times in 7 minutes. What is her blinking rate, in blinks per minute?
Answers
b. Every 24 minutes
Step-by-step explanation:
A neon sign blinks every 6 minutes, and another sign blinks every 8 minutes.
The first step is to:
Find and list multiples of each time each neon sign blinks.
This means, we find the Multiples of 6 and 8
Multiples of 6:
6, 12, 18, 24, 30, 36
Multiples of 8:
8, 16, 24, 32, 40
The first and common multiple of 6 and 8.
Therefore, the Least common multiple [LCM(6, 8) ] = 24
Hence, they often blink at the same time every 24 minutes.
Therefore, option b.Every 24 minutes is correct.
PLZ HELP
Find the surface area of this net.
_______ square centimeters
Answers
Answer:
228
Step-by-step explanation:
First, let's find the area of A and C
5 ✕ 12 = 60
60 ✕ 2 = 120
Then B
8 ✕ 12 = 96
Then the triangles
3 ✕ 5 ÷ 2 = 12 / 2
But now think,because there are 2 triangles, so we have to times it by 2 later so we can just leave it like this.
120 + 96 + 12 = 228
Please help, will give brainliest. Thank you
Answers
Answer:
92.6 times
Step-by-step explanation:
Answer:
If I understand what you are asking correctly all you would have to do is divide the 1 mile by how far around the path is. The answer to this is 92 hope this helps.
Step-by-step explanation:
If you want a decimal answer then its 92.6
Diego’s history teacher writes a test for the class with 26 questions. The test is worth 123 points and has two types of questions: multiple choice worth 3 points each, and essays worth 8 points each.
How many essay questions are on the test? Explain your reasoning.
Answers
An airplane 30,000 feet above the ground begins descending at a rate of 2,000 feet per minute. Write an equation to model the situation.
What are the slope and Y-intercept?
Answers
Answer:
7
Step-by-step explanation:
Answer:
Slope: -2000
Y-intercept: 30000
Equation: Y=-2,000x+30,000
Step-by-step explanation:
The pane starts at 30,000 feet, giving up an y intercept or a starting point. Since the plan is descending, you know the slop will be negative.
An animal shelter has a ratio of cats to dogs that is 9:7. What fraction of these animals are dogs?
Answers
Answer:
For the answer I would say 7, the fraction of dogs is 7/7
Hope it’s the right answer
Which is an equivalent expression of:
−2(5r+ 3) + 9r?
A) −19r – 3
B) −10r – 6
C) −10r + 3
D) −r– 6
Answers
if you distribute the -2 to the 5r and 3 you get -10r and -6.
-10r + 9r = -r (then just add on the negative 6)
-r-6
Explanation:
Distribute -2 through the parentheses
Then combine like terms
Ms. Gartland bought x number of shirts for the new members of her chorus. The cost for x number of shirts, including $3.99 shipping, was $77.49. Each shirt cost $12.25. There was no sales tax on this purchase. Which equation could be used to find x?
Answers
Answer:
The answer is 6 shirts
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
Last year there were 205 ducks living on the pond. This year there are 20% more ducks living on the pond. How many ducks are living on the pond this year? *
Answers
please help ill give brainliest
Answers
Answer:
The answer is -5
Step-by-step explanation:
15 divided by -3 is -5
positive number divided by a negative number is a negative number :)
hope this helps
alan is converting large and small numbers from standard notation to scientific notation. group the numbers according to their powers of 10
Answers
Answer:
i am kind of confused by the question but i would say to but all the numbers below 1 in the 10^-4 section and the numbers above 1 in the 10^6.
i might be wrong i don't what the question is really.
Step-by-step explanation:
Alan is converting large and small numbers from standard notation to scientific notation
10⁶ = 4.03 x 10⁶, 2.93 x 10⁶, 5 x 10⁶
10⁻⁴ = 1.2x 10⁻⁴, 6 x 10⁻⁴, 5.9 x 10⁻⁴
What is the scientific notation of a number?The standard form for a number is a method by which we write number in a format like b×10ˣ. The value of b should be in between 0 to 10.
Given that,
The numbers,
0.00012, 4030000, 2930000, 0.0006, 5000000, 0.00059
Taking number, 0.00012
To convert it into scientific notation,
It should be in from of b×10ˣ,
So, now dividing and multiplying 10000 into the number 0.00012,
⇒ 0.00012 x (10000/10000)
⇒ (0.00012 x 10000)/10000
⇒ 1.2/10000
⇒ 1.2x 10⁻⁴
Similarly,
0.0006 can be written as 6 x 10⁻⁴
And 0.00059 can be written as 5.9 x 10⁻⁴
Now taking number, 4030000
To convert it into scientific notation,
It should be in from of b×10ˣ,
So, now dividing and multiplying 1000000 into the number 4030000,
⇒ 4030000 x (1000000/1000000)
⇒ (4030000 / 1000000) x 1000000
⇒ 4.03 x 1000000
⇒ 4.03 x 10⁶
Similarly,
2930000 can be written as 2.93 x 10⁶
And 5000000 can be written as 5 x 10⁶
To know more about scientific notation check:
https://brainly.com/question/4953486
#SPJ5
A number cube is labeled 1 through 6. What is the probability of NOT rolling a 2?
A. 1/6
B. 2/6
C. 3/6
D. 4/6
E. 5/6
Answers
Answer:
A. 5/6
Step-by-step explanation:
It would be 5/6 because there are 5 other numbers you could land on and the probablility of rolling it would only be 1/6.
I hope this helps u...
what is the nearest whole percent of 45
Answers
Answer:
Step-by-step explanation: 45% based on the way you state the question. 45% is a whole percent.
7th Grade Students in 7th grade took a standardized math test that they also had taken in 5th grade. The results are shown on the dot plot, with the most recent data shown first. Find and compare the means to the nearest tenth. 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Test Score 7th-grade mean: 5th Grade 5th-grade mean: What is the relationship between the means? 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Test Score
Answers
Answer:
Students in 7th grade took a standardized math test that they also had taken in 5th grade. The results are shown on the dot plot, with the most recent data shown first.
Find and compare the means to the nearest tenth.
7th-grade mean:
✔ 16
5th-grade mean:
✔ 13.4
What is the relationship between the means?
✔ The 7th-grade mean is about 2.5 points higher.
Step-by-step explanation:
Mean for 7th Grade Students is: 16
Mean for 5th Grade Students is: 13.4
Comparing the means, the mean for 7th grade students is 2.6 higher than 5th grade students.
What is the Mean of a Data Distribution?The mean is the average of the data set, that is the sum of each data value divided by the number of data points.
Given that, 7th Grade Students in 7th grade took a standardized math test that they also had taken in 5th grade.
Mean for 7th Grade Students:
Mean = [10 + 11 + (2 × 12) + 13 + 14 + (2 × 15) + (3 × 16) + (3 × 17) + (2 × 18) + (2 × 19) + (3 × 20)]/21
Mean = 335/21
Mean = 15.95 = 16
Mean for 5th Grade Students:
Mean = [8 + (2 × 9) + (2 × 10) + (2 × 11) + (2 × 12) + (2 × 13) + 14 + (3 × 15) + (2 × 16) + 17 (2 × 18) + 19
Mean = 281/21
Mean = 13.38 = 13.4
The difference between their means = 16 - 13.4 = 2.6.
Hence, Mean for 7th Grade Students is: 16
Mean for 5th Grade Students is: 13.4
Comparing the means, the mean for 7th grade students is 2.6 higher than 5th grade students.
Learn more about the mean of data on:
brainly.com/question/11015069
#SPJ5
Which of these shapes have the same area? Plz help thx
Answers
Answer:
I think it's b and a
Step-by-step explanation:
hope it helps u ?
A paper company needs to ship paper to a large printing business. The paper will be shipped in small boxes and large boxes. Each small box of paper weighs 35 pounds and each large box of paper weighs 70 pounds. A total of 22 boxes of paper were shipped weighing 1260 pounds altogether. Graphically solve a system of equations in order to determine the number of small boxes shipped, x, and the number of large boxes shipped, y.
Answers
Answer:
Step-by-step explanation:
i will give brainlest to the first person to answer this question:
While at the grocery store, Mrs. Martin noticed that there were two different sized bottles of hot sauce, one was 16.9 ounces and the other 32.55 ounces. What is the difference in weight of the two bottles of hot sauce?
Answers
Answer:
15.65 ounces
Step-by-step explanation:
You have to subtract 16.9 from 32.55. This gives you 15.65 ounces.
Answer:
15.65 ounces
Step-by-step explanation:
I hope it's right :)
Seventy-two people signed up for the soccer league. After the players were evenly divided into teams, there were 6 teams in the league and x people each team.
Answers
Answer:
There are 12 people in each team
Step-by-step explanation:
72:6=12
Answer:
that means x equals 12
Step-by-step explanation:
because 72 divided by 6=12
someone plz help im giving out brainliest ;)
Answers
Answer: the slope means the triangle have a side length of 3 and the slope means that the equilateral triangle have a perimeter of 0.
Step-by-step explanation:
Hope this helps ;)