Answer:
Step-by-step explanation:
$39 plus the amount of money Grace had spent, $36.
39 + 36 = 75.
That gets rid of the "39 less than" part. But in order to find out how much money Emily spent you need to triple 75.
75 x 3 = 225
Therefore, x = 225 or $225 was the amount that Emily spent.
Hope this helps! ^u^
Brainliest please.
A tracksuit top costs £12.75 and matching tracksuit bottoms cost £9.50, how much does the tracksuit cost altogether?
Step-by-step explanation:
£22.25 pls mark brainliest thanks
Find the mean from the given data: 2, 5, 7, 3, 8, 9, 10,4
Answer:
6
Step-by-step explanation:
[tex] \hookrightarrow \: number(n) = 8 \\ \hookrightarrow \: sum( \sum \: x) = 2 + 5 + 7 + 3 + 8 + 9 + 10 + 4 = 48 \\\hookrightarrow \: mean = \frac{ \sum \: x}{n} \\ \\\hookrightarrow \: mean = \frac{48}{8} = 6[/tex]
Which statement is true about the graph of the equation 2x + y - 5 = 0?
The y-intercept is 5.
O The slope is -1.
The y-intercept is -1.
The slope is 2
what is the value of x
Answer:
x = 20
Step-by-step explanation:
given a line parallel to a side of a triangle and intersecting the other two sides, then it divides those sides proportionally , that is
[tex]\frac{10}{5x+10}[/tex] = [tex]\frac{11}{121}[/tex] = [tex]\frac{1}{11}[/tex] ( cross- multiply )
5x + 10 = 110 ( subtract 10 from both sides )
5x = 100 ( divide both sides by 5 )
x = 20
Solve for t.
16 - 2t =+9+4t
Please solve it out
pls help!! first correct answer will be awarded brainiest!!!
Answer: See below
Step-by-step explanation:
Sophie's speed is --> s miles/hour
Yesterday, Sophie biked for --> t hours
Distance = speed * time
Distance = (s miles/hour)(t hours)
Distance = (s)(t)
Therefore, Sophie's route was s*t or st miles long
PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS
Answer:
(0, -3)
explanation:
original coordinates of C: (0, -7)If reflected over y axis, there will be additive inverse in x unit
use the formula: (x,y) → (−x, y)
new coordinates: (0, -7)Then if translated vertically, there will be change in y axis:
(0, -7+4) → (0, -3)
can someone help me please?
Option D is the correct answer
Choose the graph of this equation.
Y= -2/3x - 2
Answer:
c
Step-by-step explanation:
c because
if you use a number such as -4 for x, you do
-3/2*-4 is 12/2 which is 6
6-2 is 4
the coordinate would be (-4,4)
it fits graph c
Which values in this data set are outliers? 48, 52, 56, 64, 61, 20, 48, 51, 58, 48, 78 Select Outlier or Not Outlier for each value. Value Outlier Not Outlier 20 Outlier – 20 Not Outlier – 20 48 Outlier – 48 Not Outlier – 48 64 Outlier – 64 Not Outlier – 64 78 Outlier – 78 Not Outlier – 78.
Outlier is a data point that is different from the rest of the data. The outliers in the dataset will be 20 and 78.
What is a Scatter plot?A scatter plot is also known as a scatter chart, a scatter graph that uses dots to represent values for two different numeric variables. Each dot on the graph represents particular data on both axes.
What is an Outlier?An outlier is a data point that is different from the rest of the data.
If we keenly observe the data set that is given to us, 48, 52, 56, 64, 61, 20, 48, 51, 58, 48, 78; the range of the data set that is given to us lies mostly between the 48 to 68, therefore, the data point that is the outlier for this data set are 20 and 78.
Hence, the outliers in the dataset will be 20 and 78.
Learn more about Outlier:
https://brainly.com/question/9933184
Answer:
Only 20 is an outlier.
Step-by-step explanation:
Took the test.
A student finds the sum of the angle measures in an octagon by multiplying 7 • 180°. What is the student's error?
The student should compute 6*180 = 1080 because of the formula
S = 180(n-2)
We have n = 8 sides which leads the n-2 part to become n-2 = 8-2 = 6
PLEASE HELP :)
----How many more miles would you have to travel if you drove down Polk and Fernwood?---- *I found the hypotenuse, 16, I just can't figure out how many more miles it is!*
Answer:
8 miles.
Step-by-step explanation:
Travelling down Alley street is 20 miles
Travelling along Polk and Fernwood = 12 + 16 = 28 miles.
Find the area of the regular figure below:
Answer:
82.82in^2
Step-by-step explanation:
Sabine records the daily heights of a random sample of bamboo stalks, in inches. They are: 20, 19, 17, 16, 18, 15, 20, 21 Consider the formulas: A: s squared = StartFraction (x 1 minus x overbar) squared (x 2 minus x overbar) squared ellipsis (x n minus x overbar) squared Over n minus 1. B: s = StartRoot StartFraction (x 1 minus x overbar) squared (x 2 minus x overbar) squared ellipsis (x n minus x overbar) squared Over n minus 1 EndFraction EndRoot. C: Sigma squared = StartFraction (x 1 minus mu) Squared (x 2 minus mu) squared ellipsis (x N minus mu) squared Over N EndFraction. D: Sigma = StartRoot StartFraction (x 1 minus mu) Squared (x 2 minus mu) squared ellipsis (x N minus mu) squared Over N EndFraction EndRoot Which formula should you use for variance? Which formula should you use for standard deviation?.
The formula Sabine should use for calculating the variance and standard deviation for the random sample of bamboo stalks are,
[tex]s^2=\dfrac{(x_1-\overline x)^2(x_2-\overline x)^2...(x_n-\overline x)^2}{n-1}[/tex]
[tex]s=\sqrt{\dfrac{(x_1-\overline x)^2(x_2-\overline x)^2...(x_n-\overline x)^2}{n-1}}[/tex]
What is variance and standard deviation?The variance of the data is the measure of average level by which every point is differed from the mean.
It can be calculated as,
[tex]s^2=\dfrac{(x_1-\overline x)^2(x_2-\overline x)^2...(x_n-\overline x)^2}{n-1}[/tex]
The standard deviation of the data is the half of the difference of the highest value and mean of the data set.
It can be calculated as,
[tex]s=\sqrt{\dfrac{(x_1-\overline x)^2(x_2-\overline x)^2...(x_n-\overline x)^2}{n-1}}[/tex]
Sabine records the daily heights of a random sample of bamboo stalks, in inches.
They are: 20, 19, 17, 16, 18, 15, 20, 21
For this data Sabine wants to calculate the variance and standard deviation, which can be done using the above formula.
Hence, the formula Sabine should use for variance is,
[tex]s^2=\dfrac{(x_1-\overline x)^2(x_2-\overline x)^2...(x_n-\overline x)^2}{n-1}[/tex]
The formula should Sabine use for standard deviation,
[tex]s=\sqrt{\dfrac{(x_1-\overline x)^2(x_2-\overline x)^2...(x_n-\overline x)^2}{n-1}}[/tex]
Learn more about the variance and standard deviation here;
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Answer:
First Part: A and B
Second Part: 4.5 and 2.12
Step-by-step explanation:
edge 2022
7th grade.
reasoning about equations and tape diagrams. don't do number 6
Answer:
4. x=3
5. 27
Step-by-step explanation:
4. 6(x+1) = 24, because you work the equation backwards and the opposite way, 24/6 then - 1
5. put the numbers from lowest to highest temperature
9'c, -3'c, 22'c, -5'c, 11'c, 15'c
-5'c, -3'c, 9'c, 11'c, 15'c, 22'c
range - is the highest number - lowest
22--5 =22+5 , therefore range is 27
Wendy asked 40 students on the school football team if they ever injured themselves while playing sports. Fifteen football team members responded “Yes.” Wendy concluded that 375 of the 1,000 students in her school have injured themselves playing sports. Select whether Wendy's conclusion is valid or invalid.
Answer:
Yes, Wendy's conclusion is valid.
Step-by-step explanation:
40 divided by 15= 2.666666666666667
Therefore, 1000 divided by 2.666666666666667= 374.999999999999953 which can be rounded to 375
In the diagram below, quadrilateral H I J K is inscribed in circle L. solve for X and Y
Check the picture below.
The value of variables x and y are,
x = 1 and y = 188
What is mean by Angle?An angle is a combination of two rays (half-lines) with a common endpoint. The latter is known as the vertex of the angle and the rays as the sides, sometimes as the legs and sometimes the arms of the angle.
Given that;
In the diagram, quadrilateral HIJK is inscribed in circle L.
Now, We know that;
sum of opposite angle are 180 degree.
Hence, We get;
∠H + ∠J = 180
67 + (y - 75) = 180
y - 8 = 180
y = 180 + 8
y = 188
And, We get;
∠I + ∠K = 180°
96 + (x + 83) = 180
x + 179 = 180
x = 180 - 179
x = 1
Thus, The value of variables x and y are,
x = 1 and y = 188
Learn more about the angle visit:;
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Find the value of abc if a = 4, b=-2 and c= -1.
Answer:
4+2+1=7 Make me brainlist please
Explain why 3^-3 = 1/27
Step-by-step explanation:
Because 3^-3=0.037 and 1/27 also equals 0.037 so they are equivalent thats why.
2. how long does this lease last?
a. month-to-month agreement
b. 12 months
c. 18 months
d. 2 years
The vertices of triangle ABC are A(-2, 3), B(3, 3), and C(-2, -7). The triangle is dilated with a scale factor of 2. Estimate the perimeter of the dilated figure to the nearest whole number.
Answer:
13
Step-by-step explanation:
AB = 5
AC = 10
BC = ~11
P = 11 + 10 + 5 = 26
26 / 2 = 13
$34.97 is what percent of $86.08?
Round your answer to the nearest whole number and include a percent sign (%).
Answer:
41%
Step-by-step explanation:
Simplify the equation
3+7x-(2+9x)
3 + 7x - (2 + 9x )
3 + 7x - 2 -9x
1-2x
Answer:
1-2x
Step-by-step explanation:
3+7x-(2-9x)
(if there's a minus in front of parenthesis then you have to change the sign in the parenthesis)
3+7x-2-9x(take out from parenthesis)
1-2x(combine/simplify like terms)
7
Write the equation of a line that is perpendicular to y = -3 + 6 and that passes through the point
(2,-6).
Answer:
Perpendicular lines are lines that are at right angles to each other.
For perpendicular lines, the product of their slopes is -1.
[tex]\implies m_2=\dfrac{-1}{m_1}[/tex]
(where [tex]m_1[/tex] and [tex]m_2[/tex] are the slopes of perpendicular lines)
The slope of the given equation is -3. Therefore, to find the slope of the line that is perpendicular:
[tex]m_2=\dfrac{-1}{-3}=\dfrac13[/tex]
Now we have the slope, we can use the point-slope form of a linear equation with [tex]m=\dfrac13[/tex] and [tex](x_1,y_1)=(2,-6)[/tex] to find the equation of the perpendicular line:
[tex]\implies y-y_1=m(x-x_1)[/tex]
[tex]\implies y-(-6)=\dfrac13(x-2)[/tex]
[tex]\implies y+6=\dfrac13x-\dfrac23[/tex]
[tex]\implies y=\dfrac13x-\dfrac{20}3[/tex]
PLEASE HELP,I AM BEING TIMED!!
Measure the angle of 1
Options: 100
90
10
60
Answer:
angle of 1 will be 60°Step-by-step explanation:
we know vertical opposite angle are equall so angle 1 = 60°What is the slope of the line through (2, 9) and (5, 3)
Answer:
Slope:-2
Step-by-step explanation:
You have to do y-y divided by x-x so 3-9 which equals -6 and 5-2 which equals 3 and then you have -6/3 and simplifying that you get -2.
Convert 530000 milligrams into kilograms.
*Note: you must use these exact conversion factors to get this question right.
1 pound (lb) = 16 ounces (oz)
=
1 kilogram (kg) = 1000 grams (g)
1 ton (ton) = 2000 pounds (lb)
1 ounce (oz) = 28.35 grams (g)
1 gram (g) = 1000 milligrams (mg) 1 pound (lb) = 0.454 kilograms (kg)
Answer:
I believe it is 0.53 kilograms
Step-by-step explanation:
530,000 milligrams = 530 grams which is 0.53 of a kilogram. Hope this helps :)
After 2 years, $50,000 deposited in a savings account with simple interest had earned $15,000 in interest. What was the interest rate?
Answer:
15% simple interest
Step-by-step explanation:
Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!
Write an equation standard form for the line that goes through the following points (-3,-2), (5,3)
Answer:
Your answer is: y = 5/8x -1/8
Step-by-step explanation:
Hope this helped : )
In Ms. Lee’s 3rd period class of 28 students, 7 of them have a last name that starts with the letter A. What percent of that class have a last name that starts with the letter A?
Answer:
25%
Step-by-step explanation:When you divide 7 and 28 you get 0.25 which makes 25%