Answer: x=3
Step-by-step explanation; Add 5 to both sides of the equation
6x-5+5=2x+7+5
simplify: add the numbers
6x-5+5=2x+75 = 6x=2x + 7+5
6x =2x + 7+5
6x=2x +12.
subtract 2x from both ides of the equation: 6x=2x + 12
6x - 2x =2x + 12-2x6
combine like terms u should get 4x= 12
divided both sides of the equation by the same term 4x=12 4x/4 =12/4
Cancel terms that are in both the numerator and denominator u should get x=12/4
divided the numbers and ur answer is X=3
A golf instructor is interested in determining if her new technique for improving players’ golf scores is effective. She takes four (4) new students. She records their 18-hole scores before learning the technique and then after having taken her class. She conducts a hypothesis test. Player 1 Player 2 Player 3 Player 4 Mean score before class 83 78 93 87 Mean score after class 80 80 86 86 This is which of the following and Why? 1. a test of two independent means. 2. a test of two proportions. 3. a test of a single mean. 4. a test of a single proportion.
Answer:
A test of two independent means.
Step-by-step explanation:
The test above is comparing the two independent mean scores (mean before taking her class ; μ1 and mean score after taking her class, μ2. This two mean values are tested to ascertain if there exist any statistical difference between them. This differs from the proportion which is ecekuared by the ratio of success or failure. The single mean and single proportion test only has one group which its mean or proportion is tested.
The null and alternative hypothesis for two independent sample means may be expressed thus :
H0 : μ1 = μ2
Alternative hypothesis
H1 : μ1 ≠ μ2
the average of 12 numbers is 153 what is the sum of the 12 numbers
Answer:
Sum is 1836.
Step-by-step explanation:
As we know,
average= sum/total numbers
153=sum/12
153*12=sum
sum=1836
I need help will mark you the brainliest
Answer:
i thinnk A
Step-by-step explanation:
Answer choices
36
32
28
Please help due now
Answer:
36 it should be pretty easy but no problem
A company has 20 employees their average salary is $64,000, and their median salary is $40,000. Which statement is true.
All employees have a salary of about $40,000
$64,000
Between 40,000 to 64,000
Half of the employees earn higher than $40,000
Answer:
The last one, Half of the employees earn higher than $40,000
Step-by-step explanation:
The MEDIAN, or Middle salary is $40,000. That is the numbed that is right between all of the salaries. So since it is in the middle, then half of the people are above it, therefore it is the last one.
-2×-7y=30
7×+4y=18
×=
y=
Answer:
Answer is -7 Hope this helps :D
Step-by-step explanation:
Write the equation of this circle in standard form.
Answer:
x² + y² = 16
Step-by-step explanation:
(x-h)² + (y-k)² = r² -- The standard form of equation of circle
(x-0)² + (y-0)² = 4²
Solve the equation
6i+8=2(3i-2)+8
Answer:
6i+8=2(3i-2)+8
Step-by-step explanation:
What is the area? Write your answer as a fraction or as a whole or mixed number.
Answer:
81 or 20 1/4
Step-by-step explanation:
im not sure sorry
Answer:
[tex] \frac{1681}{4} [/tex]
or
[tex]105 \frac{1}{4} [/tex]
Step-by-step explanation:
[tex]10 \frac{ + 1}{ \times 4} [/tex]
10×4=40+1=41, that will be your numerator (number at the top of the fraction) and the denominator 4 will stay the same. (bottom number)
[tex] \frac{41}{4} [/tex]
the base and the height will remain the same.
Formula : base × height = Area
[tex] \frac{41}{4} \times \frac{41}{4} = \frac{1681}{16} [/tex]
16 goes into 1681 105 times remainder 1.
so as a mixed number it will be
[tex] 105 \frac{1}{4} [/tex]
Find the measure of the supplement of a
33° angle.

Answer:
I can't see them but whichever one is 157 is the correct angle
Step-by-step explanation:
Supplementary angles are angles that equal 180 degrees.
180 - 33 = 157
So whichever angle equals 157 degrees, that is the correct one
subtract the degree given from 180
PLEASE ANSWER ANY QUESTIONS ASAP THANK YOU SO MUCH
A number is twice the other number. The sum of four times the smaller number and three times the larger number is 10. Find the numbers.
Please teach me how to do this. I'll give 90 points.
Answer:
1 and 2
Step-by-step explanation:
Let the first number be x
Let the other number be y
x = 2y.....eqn 1
From eqn 1, the smaller number is y while the bigger number is x.
3x + 4y = 10.... eqn 2
Substitute x = 2y into eqn 2
3(2y) + 4y = 10
6y + 4y = 10
10y = 10
Divide both sides by 10
y = 10/10
y = 1
Substitute y= 1 into eqn 1
x = 2y
x = 2(1)
x = 2
write an equation in slope intercept form (4,-2) (0,-5)
Answer:
y=-7/4x+5
Step-by-step explanation:
The line contains points at (4,-2) and (0,-5)
(y1-y2) / (x1-x2) = slope
(4,-2) =(x1,y1)
(0,-5) = (x2,y2)
(-2-5) / (4-0)
-7 / 4 = -7/4
y= -7/4x + b
plug in points for x and y to find b
-2=-7/4(4)+b
-2=-7+b
5=b
y=-7/4x+5
Can someone help me with this problem number 4
Answer:
m = -11/7
Step-by-step explanation:
change equation into slope-intercept form:
7y = -11x + 2
y = -[tex]\frac{11}{7}[/tex]x + 2/7
slope is the coefficient of the 'x' term
I need help on question 7 :)
Answer:
D
Step-by-step explanation:
is the only choice that actually helps in solving the equation
Answer:
D. Substitute -3x+4 in for y in the first equation.
What is the median in the box plot?
50
60
70
80
90
100
Answer:75
Step-by-step explanation:
50,60,(70,80),90,100
70+80=150
150÷2=75
Therefore, 75is the median
Angel got 4 problems wrong on a test of 50 questions. What percent of the questions did he get CORRECT
Answer:
12.5%
Step-by-step explanation:
Answer:
92%
Step-by-step explanation:
50-4 = 46
46/50 *100 = 92%
3x + 8 < 4(x - 3)Solve the inequality and graph the solution set.
Step-by-step explanation:
3x+8<4x−12
Move all terms containing x
to the left side of the inequality.
Tap for more steps...
−x+8<−12
Move all terms not containing x
−x<−20
x>20
Interval Notation:(20,∞)
Help me I don't get it ..........................................
Answer:
5/7
Step-by-step explanation:
Answer:
130/231
Step-by-step explanation:
you just plug in the values of x, y, and z so:
[tex]\frac{-\frac{2}{3}*\frac{5}{7} }{-\frac{11}{13} }[/tex]
start by simplifying the top:
[tex]\frac{-\frac{10}{21}}{-\frac{11}{13} }[/tex]
divide:
[tex]-\frac{10}{21}[/tex]÷[tex]-\frac{11}{13}[/tex]
= [tex]-\frac{10}{21} * -\frac{13}{11}[/tex]
= [tex]\frac{130}{231}[/tex]
How many solutions does x2 - 2x + 9 = 0 have and what type are they? Do NOT find the
actual solutions.
Answer:
3
Step-by-step explanation:
what would the class size be if 30 people represent 40% of the class?
Answer:
110 students
Step-by-step explanation:
%40 Divide 30
30 divided by %40 is 0.75
SO there is 60% left
%60 divided by 0.75
That is 80
80 + 30 =
110
Evaluate the expression if y=4.4 and z= 12
z2+ 8y
Answer: 59.2
Step-by-step explanation:
Take your equation
z2+8y
Now plug in the values given
(12)2+8(4.4)
24+35.2
59.2
the spinner above is used in a game. what is the theoretical probability of the given event with one spin? p(5)
a. 7/8
b. 1/8
c. 5/8
d. 0
The theoretical probability of the given event with one spin p(5) is,
⇒ p (5) = 1 / 8
What is mean by Probability?The word probability refers to the likelihood of an event occurring. Probability means possibility. And, It is branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.
We have to given that;
The spinner is used in a game.
Since, There are total 8 outcomes in spin.
Hence. The theoretical probability of the given event with one spin p(5) is,
⇒ p (5) = 1 / 8
Thus, The value of theoretical probability of the event with one spin p(5) is,
⇒ p (5) = 1 / 8
Learn more about the probability visit:
https://brainly.com/question/13604758
#SPJ7
3 7/10 + 5 3/4 + 3/4
Answer: 10.2 = 10 1/5
Step-by-step explanation:
Which rectangle represents dilation by a scale factor of 2 from the rectangle's center?
Answer:
it’s D
Step-by-step explanation:
I took the test
help me please!! thank you very much!!
Plssss help with answer !!!!!....
Answer:
Step-by-step explanation:
From the graph, the initial distance of the cyclist decreases with time before it starts to increase at the same rate.
i. When t = 60 minutes,
distance = (60 -60)
= 0
ii. When t = 120 minutes,
distance = (120 -60)
= 20 km
This implies that the endpoint of the cyclist's race was 20 km from the water station which took 60 minutes. So that on meeting the endpoint, the cyclist cycled back towards the water station at the same rate.
what expressions are equivalent to 10 - 12
Answer:
B
Step-by-step explanation:
(*￣3￣)╭ When subtracting they both equal the same of -2
PLEASE HELP ME FAST!!!!!!
WILL MARK BRAINLIEST!!!!!!!
Phillip is ordering an ice cream sundae that consist of ice cream and
toppings. He can get either chocolate or vanilla as his ice cream. For his
toppings, he can get either sprinkles, almonds, or hot fudge. How many
different ways can Phillip order ice cream?
EDITED: Answer: Phillip can order 12 different ways of ice cream.
Step-by-step explanation:
Ahem.
He can only have Vanilla or Chocolate. So let's pet them in a separate Row.
Vanilla
With SprinklesWith AlmondsWith Hot FudgeWith Sprinkles and AlmondsWith Sprinkles and Hot FudgeWith Almonds and Hot FudgeChocolate
1.With Sprinkles
2.With Almonds
3.With Hot Fudge
4.With Sprinkles and Almonds
5.With Sprinkles and Hot Fudge
6.With Almonds and Hot Fudge
Simplify by combining like terms 2 + 3d + 10d
Answer:
2+13d
Step-by-step explanation: