Answer:
1. Yes the parentheses are necessary. To find a fourth of her regular hours you must find the total amount she works during her regular hours.
2. 6
Step-by-step explanation:
(For the second question)
4+8= 12
12 × ½ = 12 ÷ 2
12÷2 = 6
Write an equation to describe the relationship in each table
Answer:
1:[tex]y=x+6[/tex]
2[tex]y=\frac{1}{2}x[/tex]
Step-by-step explanation:
If I helped, a brainliest answer would be greatly appreciated!
Four times a number is 44. What is the number? 44 n n n n 10 11 40 48
Answer:
11
Step-by-step explanation:
Which set of values could be the side lengths of a 30-60-90 triangle?
Answer:
A
Step-by-step explanation:
I think you are in geometry I learned this a little back...
It's hard to explain but basically one side is just (n) another is (n(square root sign))and another is (2n.)
So the answer Is a because in this case (n) is 4
Match the statements written in English with the mathematical statements.
Group of answer choices I will give brainiest
The number -4 is a distance of 4 units away from 0 on the number line.
[ Choose ]
The number -63 is more than 4 units away from 0 on the number line.
[ Choose ]
The number 4 is greater than the number -4.
[ Choose ]
The numbers 4 and -4 are the same distance away from 0 on the number line.
[ Choose ]
The number -63 is less than the number 4.
[ Choose ]
The number -63 is further away from 0 than the number 4 on the number line.
[ Choose ]
Answer:
1
Step-by-step explanation:
The value of k lies between 2.2 and 2.3.
Select all possible values of k.
Answer:
Its easy... 5 and 5.04!
Step-by-step explanation:
You have to look at it properly. It says "The value of SQUARE ROOTED K."
So all you have to do is square root them and whatever is in between 2.2 and 2.3 is ur answer. Ur answer 5 and 5.04.
The values of √k that lies between 2.2 and 2.3 is 5 and 5.04.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Given that √k falls between 2.2 and 2.3
For k = 1.49, √1.49 = 1.22 which is not between 2.2 and 2.3
For k = 4.8, √4.8 = 2.19 which is not between 2.2 and 2.3
For k = 5, √5 = 2.2 3which is between 2.2 and 2.3
For k = 5.04, √5,04 = 2.23 which is between 2.2 and 2.3
For k = 5.3, √5.3 = 2.302 which is not between 2.2 and 2.3
For k = 6, √6 which is not between 2.2 and 2.3
The values of √k that lies between 2.2 and 2.3 is 5 and 5.04.
Find out more on equation at: https://brainly.com/question/2972832
What is the value of the expression 2 x 7 + 9 − 3 ÷ 3?
Answer:
Answer is 22
Step-by-step explanation:
2×7+9-3÷3
14+9-1
23-1
=22
I hope it's helpful!
Answer: 22
Step-by-step explanation:
I did it on paper and got 22. I checked my answer by using a calculator and it also said 22. Correct me if I'm wrong. Hope this helped
(x + 5)+(4x - 7)
adding and subtracting polynomials
Answer:
x+5+4x-7=0
5x-2=0
5x=2
x=2.5
Answer:
x+4x+5-7
5x-2
this is answer
y- 4/5=1
what does y equal to?
Answer:
y=1.8
Step-by-step explanation:
first change the fraction into a decimal.
4/5 =0.8
plus the 0.8 to both sides
y=1.8
Answer:
[tex]y - \frac{4}{5} + \frac{4}{5} = 1 + \frac{4}{5} \\ y = \frac{5 + 4}{5 } \\ y = \frac{9}{5} [/tex]
55% of 6th grade students voted in the student election. 440 sixth grade students voted in the student election. How many total 6th graders are in the school
Answer:
800. Here's why:
Step-by-step explanation:
This indicats that 440 students make up 55% of the 6th grade population. We can write this as
55/440.
We also know that 'x' total students make up 100% of the 6th-grade population, so we can write this as
100/x.
55/440 must be equal to 100/x. When cross multiplied, it becomes 50x=44000. If we divided each side by 50, we'll find that x=880. Therefore, there are 800 6th graders
Answer:495
Step-by-step explanation:
440 rounds up to 450,450+450=900-the 10 we rounded so 890-440 is 450 which is half so we need to add 440 to 550 to get 990 and we half 990 to get 495 and that is your answer i think im very sorry if this is wrong btw a sixth grader did this please find out a way to reply to my comment or something like that to tell me if i am right.
A band director is trying to decide what music to play for the halftime show. To get a sample, the director divides the band into groups based on their grade (freshmen, sophomores, juniors, and seniors). Then she randomly chooses a group and surveys every member of the chosen group. Which sampling method was used?
cluster sampling
simple random sampling
stratified random sampling
systematic random sampling helppppppo
Answer:
random sampling
Step-by-step explanation:
Answer:
A.
Step-by-step explanation: Cluster sampling
Find the value of x
Please
Answer:
7
Step-by-step explanation:
9x+18=2x+19 (corresponding angle)
or, 9x-2x=19-18
or, 7x=1
or, x= 7
Please help and I will give you a Cookie
Step-by-step explanation:
In triangle
x²=5²+12²
x²=25+144
x²=169
x= root of 169
x=13
Answer:
13
Step-by-step explanation:
A^2+B^2=C^2
5=A 12=B X=C
C is is always the longest side of a right triangle.
in a bowl there are 20 Hershey bars and 50 bags of skittles. what is the ratio of skittles to hershey bars in the bowl
Answer:
5:2 or in other words 5 to 2
Step-by-step explanation:
The original ratio would be 50:20, but we can divide both sides by 10 to simplify our answer to 5:2.
Answer:
5:2 Or 50:20 (5:2 is the simplified version)
50 bags of skittles to 20 Hershey bars (what it looks like with words)
Step-by-step explanation:
Brooke multiplied 3 and 9 and got 17 Brooke knows her answer is wrong because she know it should be approximately
Answer:
Kindly check explanation
Step-by-step explanation:
If Brooke multiplied 3 by 9 and obtained 17 ; then Brooke is definitely wrong
3 * 9 = exactly 27
However, for approximation sake ;
We could round 9 to 10 ; and multiply 10 by 3
10 * 3 = 30 ; this gives an approximate solution for the multiplication problem ;
3 * 9 = exactly 27 or approximately 30
A store pays $22 for a surfboard. The store marks up the price by 37%. What is the amount of the mark-up?
Answer:
$8.14
Step-by-step explanation:
Given data
Cost of surfboard= $22
Mark up = 37%
Required
The amount of the markup
let us find 37% of $22
=37/100*22
= 0.37*22
= $8.14
Hence the amount of the markup is $8.14
help asap please , don’t know how to do this lol
Answer:
no
Step-by-step explanation:
Please help an explain work
I think it’s c?
Answer:
B. f(x) = -x + 2
Step-by-step explanation:
First, you find the point on the y-axis which is (0,2) in this problem.
This will be your b in y = mx+ b
Then, you'll find how many blocks you are moving or rise over run. Which is -1/1 or -1.
This will be your m in y = mx + b
But we don't write the 1 so it will just be -x
Now add all your numbers in the standered form (y = mx + b) to get y = -x + 2 or f(x) = -x + 2
How many people ages 5-18 were surveyed?
Determine the mean absolute deviation of the data.9, 7, 11, 10, 8
Answer:
1.2
Step-by-step explanation:
First, we need to find the mean of the data. We do this by adding all of the given numbers than dividing it by the number of numbers given. For example, we will add 9+7+11+10+8 which is 45. Since there are 5 given numbers, we are going to divide 45 by 5 which is 9. Now, we need to find the difference (subtraction) of all of the numbers in relation to 9. For example, for 9, we do 9-7 which is 2. Keep 2 in mind. Then we do 11-9 which is also 2. 10-9 is 1. 9-9 is 0. And finally, 9 minus 8 is also 1. Then, like what we did before, we need to find the mean of all of these differences. 2 plus 2 plus 1 plus 0 plus 1 is 6. Then, we divide 6 (our total of these differences) by 5 (the number of differences) 6 divided by 5 is 1.2 so there is your MAD and answer.
The mean absolute deviation of the given data is 1.2.
What is mean absolute deviation?The mean absolute deviation of a dataset is the average distance between each data point and the mean. It gives us an idea about the variability in a dataset.
Here's how to calculate the mean absolute deviation.
Data given: 9, 7, 11, 10, 8
Step 1: Calculate the mean.
[tex]mean = \frac{sum\ of\ observations}{number\ of\ observations} \\\\mean = \frac{9 + 7+11 + 10 + 8}{5}\\ \\mean =9[/tex]
Step 2: Calculate how far away each data point is from the mean using positive distances. These are called absolute deviations.
Data Distance from mean
9 |9 - 9| = 0
7 |7 - 9| = 2
11 |11 - 9| = 2
10 |10 - 9| = 1
8 |8 - 9| =1
Step 3: Add those deviations together.
Sum of deviations = 0 + 2 + 2 + 1 + 1 = 6
Step 4: Divide the sum by the number of data points.
Mean absolute deviation = [tex]\frac{sum\ of\ deviations}{number\ of\ observations}\\ \\[/tex] = [tex]\frac{6}{5} = 1.2[/tex]
Learn more about mean absolute deviation here
https://brainly.com/question/10528201
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help me please. i will give brainliest
Answer: 11.7
Explanation:
-1.7-(-13.4)=11.7
This is hard and I need help
Can you help me with this question? :)
Answer:
Step-by-step explanation:
2x^2+5x-4=0
x = [-5 ± √(5^2-4(2)(-4))]/[2(2)]
= [-5 ± √57]/4
= -1.25+0.25√57, -1.25-0.25√57
Help me please find the answer
Plz help due tomorrow
The CN tower in Toronto is once the worlds tallest freestanding structure from a certain point the angle of elevation of the top of the tower at 65° from a .50 6.6 m closer to the angle of elevation of the top of the tower is 70° calculate the height of the CN Tower
Answer:
h o e
Step-by-step explanation:
Factor the expression
15x+35y
Answer:
5(3x+7y)
Step-by-step explanation:
In able to factor, it would require to find the least common number between x and y. In this scenario, it would be 5.
Answer:
You're going to get 5(3x + 7y)
Step-by-step explanation:
Simplifying
15x + 35y
Factor out the Greatest Common Factor (GCF), '5'.
5(3x + 7y)
Final result:
5(3x + 7y)
PLEASE HELP HURRY
Thanks!!!!!!
This is math :)
Answer:
DON'T PRES THAT LINK THAT IS A HACK AND VIRUS
Step-by-step explanation:
HOPE THIS LETS YOU REMEMBER ABOUT NOT PRESSING THESE LINKS!
What value will make the equation true?
-2.1 - ?= -1
A 3.6
B
0.6
C -0.6
D
-3.6
Answer:
the answer is -1
Step-by-step explanation:
-2.1 - (-1) = -1.1
Neal buys a board game. He pays for the board game and pays $1.54.The sales tax rate is 5.5%. What is the original price of the board game, before tax?
Answer: 28
Step-by-step explanation:
1.54 divided by 0.055 = 28
Please give me the right answer. :)
Answer:
174mm hope this helps Happy Saint Patrick's day
Answer:
11,340 mm
Step-by-step explanation:
I am really really sorry if im wrong