Helppppp plzzzzzzz!!!!! 20+PTS and brainliest!!!!!!!!!!!!!!
Solve the following linear equations.
1.) If 2x+3=8x-5, then x=?
2.) Given that 3x+2=4 and 2y+6=5, what is x+y?
part 1
2x-8x=-5-3
6x=-2
6x/6=-2/6
x=-3
part 2
I can't so please help me
Answer:
Step-by-step explanation:
One
2x + 3 = 8x - 5 Add 5 to both sides
2x + 3 + 5 = 8x Combine
2x + 8 = 8x Subtract 2x from both sides.
8 = 8x - 2x Combine
8 = 6x Divide by 6
x = 8/6
x = 8.333
Two
3x + 2 = 4 Subtract 2 from both sides
3x = 4 - 2
3x = 2 Divide by 3
x = 2/3
2y + 6 = 5 Subtract 6 from both sides
2y = 5 - 6
2y = -1 Divide by 2
y = - 1/2
x + y = 2/3 - 1/2
x + y = 4/6 - 3/6
x + y = 1/6
What is the equation of this line in slope-intercept form?
Question 2 options:
y= −1/2x+1
y= −1/2x+2
y= 1/2x+1
Answer:
y=-1/2x+2
Step-by-step explanation:
for x-intercept
put y=0
0= -1/2x+2
1/2x=2
x=4
(4,0)
for y-intercept
put x=0
y= 2
(0,2)
What would be the slope for a line passing through the two points below?
Point 1: (1, 0.1) Point 2: (7, 26.8)
Answer:
slope is 28.7/6
Step-by-step explanation:
m= y2-y1/x2-x1
subtitute value in formula:
m=28.8-0.1/7-1
m=28.7/6
For the second week of November, Eric White worked $41.75 hours. Eric earns $19 an hour. His employer pays overtime for all hours worked in excess of 40 hours per week and pays 1.5 times the hourly rate for overtime hours.
Calculate the following for the second week November (round your responses to the nearest cent if necessary):
Please help ASAP!!!!
Answer:
x = y - 8
Step-by-step explanation:
To solve for x just subtract 8 from both sides to isolate x.
M M Find m List statement and reason
Combine Like Terms
6. Which expression is equivalent to -2-(-15d)+(-11d)+2-6 ?
-4d+6
4d-6
4d+6
-26d-10
Answer:
4d - 6
Step-by-step explanation:
-2-(-15d)+(-11d)+2-6
-2 + 15d - 11d + 2 - 6
15d - 11d - 2 + 2 - 6
4d - 6
[tex]\sqrt{x} -36 = 0[/tex] X=?
Hey there!
I believe x might be 1296.
Look at the question closely, the square root of a number minus thirty-six equals zero.
The square root of 1296 would equal 36, so, 36 - 36 = 0.
Hope this helps!
Have a wonderful day!
A researcher observed elementary school children in a rural setting vs. an urban setting. She believes the proportion of students who get the recommended amount of daily exercise may be different for students in the urban vs. rural setting.
Requied:
What would be the most appropriate test to test the researcher's claim?
Answer:
Go to multiple schools in urban and rural areas and find out how much exercise they get. Compare the data/research to find out if one gets more than the other, less, or equally the same amount of exericise.
3. A clock is constructed using a regular polygon with 60 sides. The
polygon rotates every minute. How much has the polygon rotated
after 12 minutes? Explain your answer with words, a drawing or both-
We are required to find how much the polygon has rotated after 12 minutes
The number of times the polygon has rotated after 12 minutes is 72°
Number of sides of the polygon = 60
The polygon rotates every minute, that is
1 rotation = 1 minutes
12 rotation = 12 minutes
one rotation of the clock is 360°
Number of times the polygon has rotated after 12 minutes = one rotation of the clock / Number of sides of the polygon × number of minutes
= 360°/60 × 12
= 6 × 12
= 72°
Learn more about polygons and clock:
https://brainly.in/question/5841490
3 laps 50 seconds 20% longer each lap
There are five boys to every three girls in an introductory chinese course. if there are 384 students enrolled in the course, how many are boys?
Answer:
There are 240 boys.
Step-by-step explanation:
There are five boys to every three girls in an introductory Chinese course. Given that there are 384 students enrolled in total, we want to determine the amount of students which are boys.
Let b represent the number of boys and g girls.
Since the ratio is 5:3, we can write that:
[tex]\displaystyle \frac{5}{3} = \frac{b}{g}[/tex]
And since the total number of students is 384:
[tex]b + g = 384[/tex]
From the first equation, cross-multiply:
[tex]5g = 3b[/tex]
Solve for g:
[tex]\displaystyle g = \frac{3}{5} b[/tex]
Substitute:
[tex]\displaystyle b + \left (\frac{3}{5} b\right) = 384[/tex]
Simplify:
[tex]\displaystyle \frac{8}{5} b = 384[/tex]
Solve for b:
[tex]\displaystyle b = \frac{5}{8}\left(384\right) = 240[/tex]
In conclusion, 240 of the total students are boys.
I need help please I need help please I need help please I need help please
Could you retake the photo
A couple purchased a home for $225,000. At the end of each year the home increases in value by 3%.
What is the value of the home after the tenth year?
[tex]\\ \sf\longmapsto I=\dfrac{PRT}{100}[/tex]
[tex]\\ \sf\longmapsto I=\dfrac{225000(3)(10)}{100}[/tex]
[tex]\\ \sf\longmapsto I=22500(3)[/tex]
[tex]\\ \sf\longmapsto I=67500[/tex]
The value of the home after the tenth year is 67500.
To find the value of the home after the tenth year?
What is simple interest?Simple Interest (S.I.) is the method of calculating the interest amount for a particular principal amount of money at some rate of interest.
Given that:
Principal=P=$225000
Rate of interest=R=3%
Time=10 year
By the use of formula:
[tex]I=\frac{PRT}{100}[/tex]
[tex]I=\frac{225000*3*10}{100} \\\\I=22500*3\\\\I=67500[/tex]
So, the value of the home after the tenth year is 67500.
Learn more about simple interest here:
https://brainly.com/question/24433508
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2. If 3x - y = 4, what is the value of 27^x/3^y
9514 1404 393
Answer:
81
Step-by-step explanation:
Rewriting the expression as powers of 3, we get ...
[tex]\dfrac{27^x}{3^y}=\dfrac{(3^3)^x}{3^y}=3^{3x-y}=3^4=\boxed{81}[/tex]
I need help with this question
brainliest to correct answer, please hurry
Start at 3, subtract 5 and you get -2
Find the measurement of angle ABC
3)There are 9 colorful socks in a drawer: 3 green, 2
purple,
2 Navy, 1 yellow, and 1 pink. What's the
probability of picking a green putting it on and
then choosing a purple?
Answer:
1/24 chance
Step-by-step explanation:
To begin you would need to find the probability of picking a green sock which would be 3/9; and you could simplify this to 1/3.
After that you need to find the probability of picking a purple sock out of the 8 left, which would provide you with 1/8. To find the probability of both you would multiply 1/8 by 1/3 to find the combined probability which would leave you with 1/24.
please answer these
I need it rn
it's due to tommorow
2 3/4m for textbooks + 1 1/2m for Notebooks
2 3/4 + 11/2
11/4 + 3/2
11/4 + 6/4
17/4
4 1/4
Subtract5 1/2 - 4 1/4
11/2 - 17/4
22/4 - 17/4
5/4
1 1/4
Complete answer1 1/4 meters of plastic cover will be left
HOPE THIS HELPS. GOODLUCK:)
please help , ill give brainliest
My cousin needs help with this please help thanks
Answer:
A. [tex] \cos \: x - 4 \: \cos \: x \: { \sin}^{2}x[/tex] (first option)
Step-by-step explanation:
➡️ [tex] \cos(x + 2x) [/tex]
➡️ [tex] \cos \: x \: { \cos}^{2} x - \sin \: x \: { \sin }^{2} x[/tex]
➡️ [tex] \cos \: x(1 - 2 \sin^{2}x) - \sin \: x \times 2 \sin(x) \cos(x) [/tex]
➡️ [tex] \cos(x) - 2 \sin^{2} x \cos(x) - 2 \sin^{2} x \cos(x) [/tex]
➡️ [tex] \cos(x) - 4 \cos(x) \sin^{2} x[/tex]
create 5 problems using all operations that has a solution of 5
Answer:
((5*5) + (10-5) * (50/100)) ÷ 3 = 5
((4*4)+(17-8 *(1.378/2)) ÷ 3.445 = 5
Step-by-step explanation:
Which of the h values are solutions to the following equation?
h^2=0.36
Choose all answers that apply:
A: h= square root of 0.6
B: h = square root of -0.6
C: h = 0.18
D:h = -0.18
E: None of the above
Answer:
a:h=square root of 0.6
Step-by-step explanation:
thank you for your time today
Answer:
none of the above
Step-by-step explanation:
KHAN
Simplify the following expression and show your work in details please .
Answer:
-2
Step-by-step explanation:
First you distribute:
= 6t + (3) (1) + (3) (-2t) + -5
= 6t + 3 + -6t - 5
Then combine like terms
(6t + -6t) + 3 + -5)
= -2
help me now.........
[tex]\\ \sf\longmapsto \dfrac{26}{10}=2.6[/tex]
[tex]\\ \sf\longmapsto \dfrac{527}{10}=52.7[/tex]
[tex]\\ \sf\longmapsto \dfrac{4537}{1000}=4.537[/tex]
[tex]\\ \sf\longmapsto \dfrac{329}{100}=3.29[/tex]
[tex]\\ \sf\longmapsto \dfrac{23}{1000}=0.023[/tex]
[tex]\\ \sf\longmapsto \dfrac{72}{1000}=0.072[/tex]
1. 2.6
2. 52.7
3. 4.537
4. 3.29
5. 0.023
6. 0.072
Note:
To change fractions (that have a multiple of 10 in denominator) to decimal, just count the number of zeroes. If the number of zeroes is n, then move the decimal to left to n places.
help plsss . 10 points !
Answer:
B
Step-by-step explanation:
(7×2)⁶
when we put a number to the power of something, we need to include the whole number. bit just a part of it.
so, it must be 7⁶×2⁶
just think about the simple example 6², which we could write as (2×3)².
would it be sufficient to e.g. square only one of the factors ?
6² = 36
but e.g. 2×3² = 18. so, that's really not it.
or add the two factors and then square them ?
2+3 = 5. 5² = 25. so, that's not it either.
or multiply the exponent in ?
2×3×2 = 12. so that's not it either.
no, it truly is you need to do the operation to all parts.
2²×3² = 4×9 = 36. yes, that fits.
therefore, B is the right answer.
A fine jewelry store leased a space at the mall with a base rent of $1,800 a month, plus 4% of all sales over $200,000. If the gross sales were $325,000, what was the total amount of rent paid by Heinz Fine Jewelry at the end of the year?
Answer:
So, first, we have to establish how much the base rent ends up costing. So to find that, we do 1,800x12=21,600. So the base rent is $21,600. Then, we add the 4% of sales which is 125,000x0.04=5,000. So, we add $21,600 with $5,000 and we get a final answer of $26,600 owed at the end of the year :)
Step-by-step explanation:
can you help me in all these questions
Using the slope formula, find the slope of the line through the given points. (4. - 2) and ( - 2, - 2)
Hi! I'm happy to help!
To solve this problem, we have to find the slope, which is rise over run, or how much the line rises and how far forward the line goes.
We find the slope using this formula (slope formula)
m(slope)=[tex]\frac{y_{2}-y_{1} }{x_{2} -x_{1} }[/tex]
This refers to the second y point minus the first y point, divided by the second x point minus the first x point. Y refers to the y axis, so that is the rise, because it is the difference of height in the line. X refers to the x axis, so that is the run, because it is the difference in how far it travels forward.
Our second y point is -2, our first y point is also -2. Our second x point is -2, and our first y point is 4. Let's plug in our values.
[tex]\frac{-2-(-2)}{-2-4}[/tex]
Let's simplify this so there isn't a double negative.
[tex]\frac{-2+2}{-2-4}[/tex]
Now, let's solve
[tex]\frac{0}{-6}[/tex]
0 divided by -6, is still 0, so there is no slope or the slope is 0. This means that the line is horizontal and the y coordinate doesn't change.
I hope this was helpful, keep learning! :D