Describe all numbers x that are at a distance of 4 from the number 9. Express this using absolute value notation.
Answer:
|x - 9| = 4
Step-by-step explanation:
All numbers x that are at a distance of 4 fro the number 9
Given two numbers a and B, the absolute distance between them is written as :
|a - b| = c
Hence all numbers x at distance of x from 9
|x - 9| = 4
{x : |x - 9| = 4}
I need this questions done for my class, we went over this but I forgot. Can you guys say the answer and explain so I don’t forget again? Thank you so much!
1) 2/5 x 3 =?
Since we cannot possibly cancel the denominators, let us multiply 2 and 3.
Answer will become, 6/5.
2) 2/3x3 =?
We can cut 3 and 3.
Answer will become, 2.
3) 2/5 x 3=?
This is a repeated question and the answer remains the same as the 1st question's answer, 6/5.
4) 3/2 x 3=?
We cannot cancel the denominators, let us multiply 2 and 3.
Answer is, 9/2.
decrease £220 by 15%
If we decrease £220 by 15% then it would be £187
What is percentage?"It is a number or ratio that can be expressed as a fraction of 100."
To find the percent of a number:x percent of number p is,
x% of p = p × (x/100)
For given example,
We need to decrease £220 by 15%
First we find the 15 percent of £220
15 percent of £220 is,
⇒15% of £220 = 220 × (15/100)
⇒15% of £220 = 220 × 0.15
⇒15% of £220 = £33
Now, we decrease £220 by 15%,
£220 - £33 = £187
Therefore, if we decrease £220 by 15% then it would be £187
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A multiple-choice test with 50 questions has five possible choices for each question. There are 4 marks for each correct answer, -1 mark for each incorrect answer, and 0 marks for each unanswered question. What is the total score of a student with 35 correct answers, 10 incorrect answers and 5 unanswered questions?
Answer: 130 marks
Step-by-step explanation:
There are 4 marks for every correct answer and there are 4 marks for each correct answer:
= 35 * 4
= 140 correct marks
There are -1 marks for every incorrect answer and there are 10 incorrect answers:
= 10 * -1
= -10 marks
Total score = 140 - 10
= 130 marks
Answer:
130 marks
Step-by-step explanation:
Triangle QRS has the angle measures shown.
What is the measure of the obtuse angle?
m2Q=(1x)
mZR= (3x)
m25 = (6x)
O 18
54
108
© 216
Answer:
108 degrees
Step-by-step explanation:
Given the following angle measures in triangle QRS
m<Q = 1x
m<R = 3x
m<S = 6x
Note that the largest angle is the obtuse angle since they are always greater than 90 and less than 180 degrees
The sum of angle in a triangle is 180 degrees
m<Q + m<R + m<S = 180
1x + 3x + 6x = 180
10x = 180
x = 180/10
x = 18
The obtuse angle is 6x
Measure of the obtuse angle = 6x
Measure of the obtuse angle = 6(18)
Measure of the obtuse angle = 108 degrees
Hence the measure of the obtuse angle is 108 degrees
50 students were randomly sampled and asked if they preferred Coke or Pepsi. 12 preferred Pepsi. If there are 620 students in the school how many students would you expect in the entire school to prefer Coke?
Answer:
around 470 students would prefer coke
Step-by-step explanation:
50 - 12 = 38
38 / 50 = 76%
620 (0.76) = 471.2
willie has 4 treasure chests which have a combined weight of 240 pounds. If each chest weighs at least 20 pounds what is the heaviest possible weight of one of the chests?
A. 177
B. 180
C. 217
D. 234
Answer:
B. 180
Step-by-step explanation:
There is a condition that each chest needs to be at least 20 pounds and we can use that to our advantage. Because we want one of the boxes to be really heavy, we need the other three to be really light. Let's set the heavy box as variable y. Set each of the other three boxes equal to 20. Because the combined weight is 240, then the equation so far is 240 = (20*3)+y.
Now, we can solve for y. 240-60 = 180, so the heaviest box has to be 180 lb.
Convert 4 years into hours.
Hint: 1 non-leap year =8760 hours and 1 leap year=8784 hours. One out of every 4 years is a leap year.
Answer: 4 years =35.064 hour
Step-by-step explanation:
8760 multiplied by 3 is 26,280
add the year hours
26,280+ 8784 = 35,064 hours
Answer:
35064
Step-by-step explanation:
A boat travels due north for 20km and then turns and travels due east for 7km. How far away is the boat from where it started?
Answer:
21
Step-by-step explanation:
[tex]a^{2}[/tex] + [tex]b^{2}[/tex] = [tex]c^{2}[/tex]
(20)^2 + (7)^2 = [tex]c^{2}[/tex]
400 + 49 = [tex]c^{2}[/tex]
c= [tex]\sqrt{449}[/tex] = 21.1 ~ 21
(hope its right)
please help!!!!!!!!!!
Answer:
5x+3
Step-by-step explanation:
Answer:
5x + 3 = y
Step-by-step explanation:
y represents the answer
3 more means +3
Product is the answer when two or more values are multiplied together.
So, three more than the product of 5 and x would be 5x + 3 = y
what is the slop of (5,2) and (-6,3)
Answer:
m = - [tex]\frac{1}{11}[/tex]
Step-by-step explanation:
a cinema has three screens last saturday there were 500 visitors
Answer:
200 visitors went to screen 1.
125 visitors went to screen 2.
175 visitors went to screen 3.
Step-by-step explanation:
We will find number of visitors who went to screen 1 by finding 40% of 500 as we are told that 40% of 500 visitors went to screen 1.
Therefore, 200 visitors went to screen 1.
Now we will find number of visitors who went to screen 2. We are told that 25% of 500 visitors went to screen 2.
Therefore, 125 visitors went to screen 2.
Now we will find the number of visitors who went to screen 3 by subtracting combined number of visitors who went to screen 1 and screen 2 from total number of visitors.
Therefore, 175 visitors went to screen 3.
Step-by-step explanation:
HELP FAST DUE SOON Find the area of the parallelogram
Answer:
12 u^2
Step-by-step explanation:
The person below I think got the answer right.
The formula is area= base x height or a=bxh
Answer:
12u^2
Step-by-step explanation:
In one of the boxes, it tells you the formula for finding the area of a parallelogram. Area=base x height or A = b x h. The base is 6 units and the height is 2 units.
A = b x h
12 = 6 x 2
write down an expression for the nth term of the following sequence
5, 11, 17, 23, ...
Answer:
[tex]a_{n}[/tex] = 6n - 1
Step-by-step explanation:
There is a common difference d between consecutive terms in the sequence
d = 11 - 5 = 17 - 11 = 23 - 17 = 6
This indicates the sequence is arithmetic with n th term
[tex]a_{n}[/tex] = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 5 and d = 6 , then
[tex]a_{n}[/tex] = 5 + 6(n - 1) = 5 + 6n - 6 = 6n - 1
PLZ HELP I NEED IT VERY MUCH THANK YOU BRAINLIEST AND % STARS THANK YOIU
2. In the middle school band, there is 1 oboe for every 7 clarinets. Write three equivalent ratios to compare the oboes to the clarinets
1/7, 2/14, 3/21
I took the test
The three equivalent ratios to compare the oboes to the clarinets are,
⇒ 2 : 14
⇒ 3 : 21
⇒ 4 : 28
What is mean by Ratio?A ratio indicates how many times one number contain in another number. The ratio of two number is written as x : y, which is equivalent to x/y. Where, x and y are individual amount of two quantities. And, Total quantity gives after combine as x + y.
We have to given that;
In the middle school band, there is 1 oboe for every 7 clarinets.
Here, The ratio of the oboes to the clarinets is,
⇒ 1 : 7
Hence, Three three equivalent ratios to compare the oboes to the clarinets are,
⇒ 1 : 7
⇒ 1 / 7
⇒ 1×2 / 7×2
⇒ 2 / 14
And, 1 : 7
⇒ 1×3 / 7×3
⇒ 3 / 21
And, 1 : 7
⇒ 1×4 / 7×4
⇒ 4 / 28
The three equivalent ratios to compare the oboes to the clarinets are,
⇒ 2 : 14
⇒ 3 : 21
⇒ 4 : 28
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b. After the 10th graduation
ceremony, how many total
graduates are there? Explain how
you determined your answer.
Answer:
chccucuxudhwhhwhsvahajw 10th g - ceremony
Figure A is translated 3 units right and 2 units up. The translated figure is labeled figure B. Figure B is reflected over the x-
axis. The reflected figure is labeled figure C. Which best explains why figure A is congruent to figure C?
Answer:
A. A = B and B = C
Answer:
A) A=B and B=C
Step-by-step explanation:
Ellen has a coupon for 1.55 off a loaf of bread. The regular price of bread is 4.63. The loaf is cut into 14 slices. What is the price per slice if Ellen uses her coupon?
Answer:
0.22 or 22 cents
Step-by-step explanation:
4.63 (original bread price) - 1.55 (coupon) = 3.08
divided by 14 slices of bread is 22 cents
Answer:
$0.22 per slice
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Apply the coupon to the loaf of bread first. $1.55 off a loaf of bread means subtracting this amount from the original price of bread.
$4.63 - $1.55 = $3.08If the loaf is cut into 14 slices, we should divide the loaf of bread's new price by 14.
$3.08 / 14 = $0.22The price per slice if Ellen uses her coupon is $0.22 per slice.
Thank you L for helping me w/ this question :)
Please help i will give brainliest
Answer:
-4.2, -3.5, -2.1, -1.5, -1, -0.5, 0.5, 3.5, 4.8
Step-by-step explanation:
Answer:
-4.2
-3.5,
-2.1,
-1
-1.5
-0.5
1
3.5,
4.8
Step-by-step explanation: Please feel free to point out if I'm wrong or if I missed any (i did spaces so you could see easier, also from top to bottom is least to greatest)
help me with this please
Answer:
44 cm²
Step-by-step explanation:
Ar(big rect.) = (4+4)×(4+3)
= 8×7
= 56
Ar. of small rect. = 4×3 = 12
Area of X = 56-12
= 44 cm²
What is a formula that can be used to find the area of one triangular section of the door how do you know the formula will work?
Answer:
[tex]Area = \frac{1}{2} L B[/tex]
Step-by-step explanation:
Given
See attachment for complete question
Required
Determine the formula of one of the triangular sections
From the attachment, we have that:
[tex]L = Length[/tex]
[tex]B = Height[/tex]
The area of the triangle is:
[tex]Area = \frac{1}{2} * L * B[/tex]
[tex]Area = \frac{1}{2} L B[/tex]
How to know the formula works?
From the attachment, we can see that the rectangle is divided into two equal triangular sections.
The area of the rectangle is:
[tex]Area = L* B[/tex]
[tex]Area = LB[/tex]
Because the rectangle is divided into two equal triangular sections.
This implies that, the area of one of the triangular sections is half the area of the rectangle.
So:
[tex]Area(Triangle) = \frac{1}{2}Area(Rectangle)[/tex]
Substitute LB for the area of the rectangle
[tex]Area(Triangle) = \frac{1}{2}LB[/tex]
By comparison:
[tex]Area(Triangle) = \frac{1}{2}LB[/tex] and [tex]Area = \frac{1}{2} L B[/tex] are the same
Can someone help solve it
Answer:
C
Step-by-step explanation:
The answer is C (the third one)
Please help!!!!
Which point is on the graph of f(x) = 6*?
O A. (1,6)
O B. (6,1)
O C. (0,6)
O D. (0,0)
Answer: A: (1, 6)
Step-by-step explanation:
what does 7 = 4 – 3x
Answer:
Can I be marked brainliest?
x = -1
Step-by-step explanation:
Switch it around
4 - 3x = 7
-3x + 4 = 7
Subtract 4 from both sides of the equation
-3x + 4-4 = 7-4
Simplify
-3x = 3
Divide both sides of the equation by the same term
-3x/-3 = 3/-3
x = -1
Answer:
-1
Step-by-step explanation:
7=4-3x Add like terms
-4 -4
3=-3x Now divide
/3 /3
x=-1
Without using a calculator, choose the statement that best describes the square root of
174.
Answer:
The square root of 174 with one digit decimal accuracy is 13.1.
Step-by-step explanation:
Pls help I have no idea
Answer:
Step-by-step explanation:
If you connect the chord ends to the center you will see that you form a right triangle where:
[tex]r^2=16^2+\left(\frac{9x-15}{2}\right)^2\ and\ r^2=16^2+\left(\frac{7x+5}{2}\right)^2\\ \\
\text{From these equations we can see}\\ \\ (9x-15)^2=(7x+5)^2\\ \\ 9x-15=7x+5\\ \\ 2x=20\\ \\ x=10[/tex]
URGENT pls help will mark brainliest, 40 points
Answer:
14answer 3
15answer1
16answer1
Mrs. Norman has 40 pairs of shoes. 6/8 of her shoes are sneakers. How many of her shoes are sneakers?
Answer:
30 of her shoes are sneakers
Step-by-step explanation:
40 divided by 8 = 5
5 x 6 = 30
hope this helps!
Answer:
30 of her shoes are sneakers
Step-by-step explanation:
you have to divide 40 by 8 which is 5 and 5 x 6 is 30 hope you have a great day
Jack and Jane are married and both work. However, due to their responsibilities at home, they have decided that they do not want to work over 65 hours per week combined. Jane is paid $14 per hour at her job, and Jack is paid $10 per hour at his. Neither of them are paid extra for overtime, but they are allowed to determine the number of hours per week that they wish to work. If they need to make a minimum of $850 per week before taxes, what is the maximum amount of hours that Jack can work per week according to these limits?
By setting up a system of equations we can easily solve this problem. Let's denote Jane's working hours with x and Jack's working hours with y. Since they don't want to work more than 65 hours, the first equation is x+y=65. The second equation is 14x+7y=770. By solving this system of equation , we find that y=20 hours, which is Jack's maximum working hours.