♡ The Question ♡
・-2 (x + 7) = x -34 + 2x
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* ♡ The Answer ♡
・x = 4
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♡ The Explanation/Step-By-Step ♡
・-2 (x + 7) = x -34 + 2x
-2 (x + 7) = x + 2x - 34
-2 (x + 7) = 3x - 34
-2 (x + 7) : -2x - 14
-2 (x + 7)
Apply the distributive law! : a(b + c) = ab + ac
a = -2, b = x, c = 7
= -2 + (-2) x 7
Apply minus (-) plus rules!
+ (-a) = -a
= -2x - 2 x 7
Multiply the numbers! : 2 x 7 = 14
= -2x - 14
-2x - 14 = 3x - 34
Add 14 to both sides!
-2x - 14 + 14 = 3x - 34 + 14
Simplify!
-2x = 3x - 20
Subtract 3x from both sides!
-2x - 3x = 3x - 30 - 3x
Simplify!
-5x = -20
Divide both sides by -5!
-5x/-5 = -20/-5
Simplify! : -5x/-5 : x
Apply the fraction rule! : -a/-b = a/b
= 5x/5
Divide the numbers! : 5/5 = 1
= x
Simplify! : -20/-5 : 4
-20/-5
Apply the fraction rule! : -a/-b = a/b
= 20/5
Divide the numbers! 20/5 = 4
= 4
x = 4
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*♡ Tips ♡
・No tips provided!
What is the median of the data set? 6, 7, 11, 14, 20, 30, 35.
O A. O B. 14 O c. 6 O D. 35
Answer:
simple you just need to,there are lot ways ok don't get hurry just listen answer is 35 done
Answer:
The median is 14
please help! sort the equations by whether they are polynomial or not (picture attached)
Answer: 5/x3-1/x2+8/x-40 is not polynomial. The rest are polynomial.
Step-by-step explanation:
Polynomials cannot have a number divided by a variable so 5/x3-1/x2+8/x-40 can't be a polynomial.
This composite figure is made up of three simpler shapes. What is the area of this figure?
Answer: it’s 116
Step-by-step explanation:
uhh please help 4 spring break hamwork math btwww
Answer:
60x + 42y
Step-by-step explanation:
6(10x + 7y)
Use distribute property and multiply 6 to everything inside the parenthesis:
6 x 10x = 60x
6 x 7y = 42y
SO, 60x + 42y is the correct answer
Answer:
60x + 42y
Step-by-step explanation:
You are standing at the top of the mountain 1,500 feet above sea level and your brother is a scuba diving in the ocean 10 feet below sea level. Write an expression using absolute values to determine the difference between the 2 positions.
Answer:
To find the absolute value remove abt negative sign in front of a number and to think of all numbers as a positive
Step-by-step explanation:
The expression using absolute values to determine the difference between the two positions is → d = x + |y| , where : x = +1500 and y = -10.
What are expressions?A mathematical expression is made up of terms (constants and variables) separated by mathematical operators
Given is that you are standing at the top of the mountain 1,500 feet above sea level and your brother is a scuba diving in the ocean 10 feet below sea level.
For 1500 feet above the sea level, we can write -
{x} = + 1500 ft
For 10 feet below the sea level, we can write -
{y} = - 10
Assume the difference between the two positions is equal to {d}. So, we can write -
d = x + |y|
d = 1500 + |- 10|
d = 1500 + 10
d = 1510 ft
Therefore, the expression using absolute values to determine the difference between the two positions is → d = x + |y| , where : x = +1500 and y = -10.
To solve more questions on expressions, visit the link below -
brainly.com/question/14591508
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Markers make up what percent of the school supply inventory?
Answer:
Markers make up 15% of the inventory.
Step-by-step explanation:
There are 60 total items and 9 of them are markers. 9 is 15% of 60
the cost of 2 quesadillas and 3 burritos at a local mexican restaurant is $32. The cost of 4 quesadillas and 2 burritos at the same restaurant is $34. what is the cost of one quesadilla and 1 burrito?
Answer:
1 quesadillas is $4.75 and 1 Burrito is $7.50
Step-by-step explanation:
This question is a form of simultaneous equation
1. Quesadillas represents x and Burrito represents y
2. Form an equation base on the problem, hence as written below.
2x+3y=32
4x+2y=34
3. Use the elimination method by minusing the first equation from the second equation to give y=2x-2
4. Then you substitute the y=2x-2 into one of the equations above to find the x value. Eg y value substituted which is 2x+3(2x-2)=32. Therefore x=4.75
5. To find y substitute x value into either of the equation to find the y value.
Eg: 2(4.75)+3y=32. Therefore, make Y the subject to find Y value. Y= 7.50
Which sample size of a population of 200 is most likely to give a reliable conclusion?
30
10
50
80
Answer:
In my opinion 50
Step-by-step explanation:
Please help and explain I need this done pronto!!!
Answer:
1.) Mean= 136
Median=133
2.) Mean=136
Median=133
Answer: Landers
Mean = 136
Median = 133
Skakalski
Mean = 130
Median = 133
Step-by-step explanation: to find the mean add all the numbers then divide it by how many numbers there are.
To find the median write all the numbers from smallest to largest then cancel the number at the end until you reach the “middle” number.
For each decimal in the table find an equivalent fraction in the box. Use the fractions in the item bank.
Answer:
.5 is equal to 5/10
.05 is equal to 5/100
.09 is equal to 9/100
.9 is equal to 9/10
Step-by-step explanation:
Hope this helps! Mark me and brainliest if it does!
Which addition problem is the same as 7+ 73?
A: 70+ 70 + 3
b: 70+3+7
C: 7+7+3
Answer:
B
Step-by-step explanation:
7+73= 80
Let's check b:
70+3+7 = 73+7 = 80
I need help and this is due at 11:59 please
Answer: The y-intercept (b) is 10.
Step-by-step explanation:
Use the slope and the point to help you. Plot the point (-3,4) on graphing paper or use geometry software. I use geometry software, it's easier.
You'll need to understand that the slope 2 can also be written as 2/1 (rise/run). Go up 2 units and go to the right 1 unit, then plot a point. Keep going until one of the points lies on the y-axis. The y-coordinate of that point is the y-intercept. So, the y-intercept (aka "b") is 10.
You're welcome, and I have a nice day! :D
Answer:
10.
Step-by-step explanation:
Pls helpppppp I really need helpppp
a 4000 pound car driving at 40 miles/hour has how many times the kinetic energy of another 4000 pound car driving at 10 miles/hour.
The comparison of the kinetic energy of the given bodies is required.
The first car has 16 times more the kinetic energy of the second car.
Kinetic energym = Mass of car = 4000 pound
[tex]v_1[/tex] = Initial velocity of car = 40 miles/hour
[tex]v_2[/tex] = Final velocity of car = 10 miles/hour
The mass of the car is constant so we have the relation
[tex]K\propto v^2[/tex]
Thus,
[tex]\dfrac{K_1}{K_2}=\dfrac{v_1^2}{v_2^2}\\\Rightarrow K_1=K_2\dfrac{40^2}{10^2}\\\Rightarrow K_1=16K_2[/tex]
Learn more about kinetic energy:
https://brainly.com/question/25959744
Other than light and sound, what energy is often present during a thunderstorm?
PLS HELP
THE SUBJECT IS SCIENCE.
Answer:
Kinetic energy is present.
Step-by-step explanation:
It's present by the moving winds in the storm, and by the winds moving things such as trees, branches, or plants.
When finding unit prices what goes in the numerator?
1 unit
The cost
The item
Answer:
Cost
Step-by-step explanation:
price/cost goes first
What property is being shown? 3 + x + b= 3 + b + x
a. Associative
b. Commutative
c. Symmetric
Answer:
B. Commutative
Step-by-step explanation:
Commutative The order in which the operands are taken does not affect their image under the operation.
I belive this is the answer!
Hope this Helps!! :))
Answer:
B. Commutative
Step-by-step explanation:
Kevin is taking a taxi from the airport to his home. There is a $6 fee for riding in the taxi. In
addition, Kevin must also pay $1 per mile.
Write an equation where m is the number of miles and t is the total cost in dollars of the
taxi ride.
help me over here please
What is 2.75 years in months?
Answer:
About 33.
Step-by-step explanation:
In 1 year, there are 12 months. We have 2 years here, so we do 12x2, which is 24. We also have .75.
Well, .5 (half) of the year would be 6. A quarter of the year would be 3.
.75 is equal to 3 quarters, so we do 3x3, getting 9.
24+9=33
pls help on this i cant do it
Answer:
y=2x-1
Step-by-step explanation:
y=mx+b
insert Point (0,-1)
-1 = m * 0 + b
-1 = b
slope:
m = delta y / delta x
m = 2 / 1
m = 2
Emma types one-third of a paper for History class in 34 hour. What part of the paper can she type in one hour?
Answer:
What part of the paper can she type in one hour. The hours cancel out, leaving us with: 1/3 x 4/3 paper/hour Multiplying the numerators and denominators, we get: 4/9 paper/hour So Emma can type 4/9 of a paper in one hour.
Thank you for submitting!
arnita swims in a pool that is 50 meters long. everyday arnita swims 10 lengths of the the pool. After 5 days, how many kilometers has arnita swum?
Answer:
After 5 days Arnita has swum 2.5 kilometers.
Step-by-step explanation:
50 x 10 = 500 lengths of the pool per day
500 x 5 = 2,500 meters
2,500 meters = 2.5 kilometers
What is the volume of the figure below?
Answer:
104m^3
Step-by-step explanation:
we can break this into 2 different rectangular prisms. by adding the 2 volumes, we get the total volume. the V= L x W x H
6x6x2= 72
4x4x2= 32
72+32= 104
When you go shopping, you love to purchase new shirts. In your closet you notice that 2/6 are red shirts, 2/4 are shirts blue, 4/5 are green shirts and 1/10 are yellow shirts. You choose a shirt without looking, what color shirt are you MOSTLY likely to choose?
A
green
B
red
C
yellow
D
blue
Label the type of association shown by the scatter plot as positive, negative, or no relationship. Read the answer choices carefully - you only have one attempt for this problem.
Answer:
Positive,nonlinear
Step-by-step explanation:
I know math
Write the equation of the line in slope-intercept form using y=mx+b
Answer:
y=x-400
Step-by-step explanation:
Ples help me, it's due by the end of class
Answer: it is a
pleaze put your brainly
Step-by-step explanation:
which of these would be a helpful first step in solving the equation? check all that apply. 7x - 9 = 2x + 21
Answer: E. Subtract 2x
Step-by-step explanation:
Subtracting 2x would remove a bit from both equations, giving us 5x - 9 = 12. This would make it easier now that we only have one number on a side.
Hope this helps!
Please help me!!! brainy to whoever answer correctly!!!
Answer:
(12, 0) & (3, -1) & (0, -3/4)
Step-by-step explanation:
x - 9y = 12
Plug in the point and solve:
12 - 9(0) = 12
12 = 12
3 - 9(-1) = 12
3 + 9 = 12
12 = 12
0 - 9(-3/4) = 12
12 = 12
Answer:
(12,0), (3,-1), and (0,-4/3)
Step-by-step explanation:
Just replace x and y in the equation with the coordinates.
12-9(0)=12
solve to see if it is true. First solve 9(0) which is 0. Which leaves us with 12-0=12 and this is true because it fits.
Now with (3,-1)
3-9(-1)=12
Solve to see if true. First solve 9(-1) which is -9. this leaves us with 3-(-9)=12
3-(-9) does equal 12 so this one is true as well.
Same thing with (0,-4/3)