Answers
2x -9y = 14
x = -6y + 7
first replace the x of the first equation with the -6y + 7
which turns out
2 ( -6y + 7 ) -9y = 14
by following brackets first rule we can do
- 12y + 14 -9y = 14
we can arrange the following to
- 12y - 9y + 14 = 14
so like terms are together
we shifting 14 over
- 12y - 9y = 14 - 14
- 21y = 0
meaning y = 0
then we can replace x = -6y + 7 with
x = -6 (0) + 7
by multiplying with brackets first rule we come to
x = 0 + 7
x = 7
Related Questions
Find the median of the following numbers:
8, 21, 10, 6, 7, 20
A.9
B.10
C.12
D.15
Answers
Answer:
9
Step-by-step explanation:
Median means middle number.
6, 7, 8, 10, 20, 21.
The middle is 9.
Answer:
The median is 9
Step-by-step explanation:
The median means to find the number in the middle of all numbers
for example the median of 1,2,3,4,5 is 3 because it is in the middle of all numbers.
I really need help with this asap!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
Radius=10
Diameter=20
circumference=62.8
Area=314
Answer:
Radius: 10 inches
Diameter: 20 inches
Circumference: 62.8 inches
Area: 314 inches squared
Step-by-step explanation:
Radius:
They have already given you the radius (10), so no formula is needed.
Diameter:
To find the diameter, multiply the radius by 2, so:
2 × 10 = 20
Circumference:
To find the circumference, use this formula:
C=2πr
2 × π (3.14) = 6.28
6.28 * 10 = 62.8
Area:
To find the area, use this formula:
A=πr²
π (3.14) × 100 = 314
--------
Have a good day :)
Which word means almost the same as the word urged?
a asked
b mentioned
c persuaded
d suggested
Answers
Answer:
I would say suggested
Step-by-step explanation:
Can you please help me
Answers
a school librarian ordered new books for the library. 1/3 are science 2/5 are biography and the rest of the books are fiction. What fraction of the books ordered are fiction?
Answers
Answer:
4/15
Step-by-step explanation:
1/3 + 2/5
Use common denominator of 15
5/15 + 6/15 = 11/15
What fraction of the books ordered are fiction?
1 - 11/15
Use common denominator of 15
15/15 - 11/15 = 4/15
pls answer quick ill give more points if right.
The problem solving plan identifies steps to organize your information. Which of the following answer choices are included in the steps to organize your information?
A. Organize the problem and find the question.
B. Solve the problem and change your strategy if necessary.
C. Write the facts, organize your thoughts and define your strategy.
D. Organize the steps and underline the question.
Answers
Answer:
I WOULD SAY C! IT MAKES THE MOST SENES
Step-by-step explanation:
Defining the problem.
Generating alternatives.
Evaluating and selecting alternatives.
Implementing solutions.
C says "Write the facts, organize your thoughts and define your strategy."
A family has four boys in the family to terminus as unusual design a simulation involving a coin that could be used to estimate the probability of having four boys from a simulation explain if the families claim of having four boys being unusual is correct.
Answers
Answer:
m
kkkStep-by-step explanation:
k
1.
The graph below shows the winter precipitation in Arizona from 1995 to 2002. It also shows the survival rates of Arizona pronghorn fawns for the same period.
Which two years had the most precipitation?
• Which two years had the best survival rates for fawns?
• Using your knowledge of biotic and abiotic factors and information from the graph, give two reasons why precipitation and fawn population are linked.
• Predict what would happen to the fawn population if the precipitation rate continues to go downward in 2003.
Answers
Answer:
Step-by-step explanation:
Find the surface area of the square pyramid. Enter your answer in the box.
Answers
Answer:
341cm²
Step-by-step explanation:
Hope you will understand and Hopefully it's correct
Please help im kinda confused
Answers
Answer:
Yes. They are the same just scaled differently (Smaller/Bigger)
Step-by-step explanation:
Answer:
B. No
Step-by-step explanation:
triangle A: x = 4, y = 2
triangle B: x = 11, y = 4
1. Lin is running in an election to be president of the seventh grade. She wants to predict her chances of winning. She has the following ideas for surveying a sample of the students who will be voting:
1.Ask everyone on her basketball team who they are voting for.
2.Ask every third girl waiting in the lunch line who they are voting for.
3.Ask the first 15 students to arrive at school one morning who they are voting for.
•Would the different methods for selecting a sample lead to different conclusions about the population?
•What are the benefits of each method?
•What might each method overlook?
•Which of the methods listed would be the most likely to produce samples that are representative of the population being studied?
•Can you think of a better way to select a sample for this situation?
Ready? Enter your answer here.
Answers
Answer: It would be #3
Step-by-step explanation: Most convenient
Plz help. Giving brainliest to complete and correct answers. absurd answers will be reported.
Answers
Answer:
Sara could try to lower her expenses. It is clear that she spends to much money and her income is low. I’m summary, Sara needs to stop spending so much money and probably get a better job that pays more to increase her income.
I really hope this helps, good luck! ;)
The area of the figure is _______________ square feet. Rectangular Pyramid
Answers
Trust me, this is the answer.
Mark me brainliest if you got it right? And tysm! Have a nice day :DD
1. Find the volume of a cone that has a radius of 6cm and a height of height cm. Leave your answer in terms of π (pi).
2. A gift box in the shape of a rectangular prism has a length of 4in, a width of 2in, and a height of 3in. How much would it cost to cover the box if the wrapping paper costs $0.85 per square inch?
3. Find the circumference and area of a circle that has a 5m radius.
4. A tractor tire is 7ft in diameter. How many revolutions will it make traveling 1 mile? (5280 ft = 1 mi)
Answers
Step-by-step explanation:
I is right answer of this question
Answer:
The volume of the cone is 108π(pi). if the height is 9
Step-by-step explanation:
V = πr2h / 3 (formula for finding the volume)
V = π62(9) / 3
V = 324π / 3
V = 108π
You can change the value of height if its different for you
- 7th Grade Work -
Am I doing this correctly?
Answers
Answer:
yes i think
Step-by-step explanation:
Answer:
to be honest i dont know but all i gotta say is 60 minutes= 1 hours
Step-by-step explanation:
i dont know because i am only in 6th grade
How to find the all 4 angles of a trapezoid given only the side lengths
Answers
Answer:
Angle Measures on the same side between the bases are supplementary
Supplementary means they add up to 180 degrees
Step-by-step explanation:
Equation : m∠1 + m∠2 = 180°
110° + m∠2 = 180°
-110° -110°
m∠2 = 70°
plzzzzzzzzzzzzzz help me i suck at this
Answers
Answer:
[tex]9 \times 9 \times 0.25 \times \pi \times 15 = 953.775 = 953.78[/tex]
Answer:
953.78
Step-by-step explanation:
the area of the circle = 4.5*4.5*3.14 = 63.585
the area of the container = 63.585*15 = 953.78
19. When baking a cake, you have a choice of the following pans:
1. a round cake pan that is 2 inches deep and has a 7-inch diameter
2. a 6 inch × 9-inch rectangular cake pan that is 2 inches deep
Which of these pans has the larger volume? Justify your answer.
Note: Write an essay-like answer, and I will give brainliest and rating.
Answers
The answer is
round cake - 82.42 in²
rectangular cake - 114 in²
Round cake:
d = 7 in
r = d/2 = 7 in / 2 = 3.5 in
h = 2 in
The surface are of a cylinder is:
A = 2πr² + 2πrh
The surface are of the round cake (which is actually a cylindrical cake) excluding the bottom is:
A = 2πr² + 2πrh - πr²
A = πr² + 2πrh
A = 3.14 * 3.5² + 2 * 3.14 * 3.5 * 2
= 38.46 + 43.96
= 82.42 in²
Rectangular cake:
w = 6 in
l = 9 in
h = 2 in
The surface are of a rectangle is:
A = 2wl + 2wh + 2lh
The surface are of the rectangular cake excluding the bottom is:
A = 2wl + 2wh + 2lh - wl
A = wl + 2wh + 2lh
A = 6 * 9 + 2 * 6 * 2 + 2 * 9 * 2
= 54 + 24 + 36
= 114 in²
Step-by-step explanation: This answer is not mine but JcAlmighty’s so all credits go to them.
What is the slope of the figure below? Write your answer as a rational number.
Answers
Answer:
2/3
Step-by-step explanation:
Slope = the rise over run! So if you calculate (or just count) the rise and run between point (-3,6) and (0,4), it is 2 over 3, which cannot be further simplified so it is just the fraction 2/3.
1. Select all the statements that correctly describe the expression. 5 to the power of 2 x (7z + 4)
Answers
Answer:
First you do what is inside the parentheses. 10 x 5 - 3. 50 - 3 =47. Then you multiply 47 x 5 = 235.
Step-by-step explanation:
What are the answers to this problem?? Other than b c and f??? Please help. No bots are acceptable
Answers
Please help me on this question
Answers
I am stuck on same thing as u
Step-by-step explanation:
Help asap please
The area of a rectangle is calculated by multiplying the length by the width. If the area of a
rectangle is 2x² + 7x + 6. what are the factors that represent the length and width? if x = 6 feet,
what are the dimensions of the rectangle?
Answers
Answer
2(6x6) + 7(6) + 6
= 2(36) + 42 + 6
= 72 + 42 + 6
= 120 is the area
So...
l x b = 120
I am sry if I am not able to answer but this is what I understand !
Step-by-step explanation:
2x(x+2) 3(x+2)
(2x+3) (x+2)
15X8 is the answer of the dimensions of the rectangle
A locker requires a three-digit code to open the lock. The code must contain one letter and two numbers, and no letter or number can be repeated. You can choose from among four letters, A, B, C, and D, and two numbers, 5 and 6.
The size of the sample space is ___
If a code is chosen at random, the probability that it has a letter that immediately follows an odd number is ___
If a code is chosen at random, the probability that D is in the code but is not in the first position is ___
ANSWER ALL 3
Answers
The probability that it has a letter that immediately follows an odd number 1/2. The probability that D is in the code but is not in the first position 1/4.
What is the probability?Probability refers to a possibility that deals with the occurrence of random events. The probability of all the events occurring need to be 1.
The formula of probability is defined as the ratio of a number of favorable outcomes to the total number of outcomes.
A locker requires a three-digit code to open the lock. The code must contain one letter and two numbers, and no letter or number can be repeated.
You can choose from among four letters, A, B, C, and D, and two numbers, 5 and 6.
The size of the sample space is (8, 16, 20, and 24)
If a code is chosen at random,
The probability that it has a letter that immediately follows an odd number (1/8, 1/6, 1/3, 2/5, 2/3)
= 1/2
If a code is chosen at random,
The probability that D is in the code but is not in the first position (1/8, 1/6, 1/3, 2/5, 2/3)
= 1/4
Learn more about probability here;
https://brainly.com/question/11234923
#SPJ2
Can someone please help me with questions 18 and 19 please. Will give brainilist to best answer.
Answers
Find the surface area of a triangular prism
Answers
[tex] \huge\mathrm{Answer࿐}[/tex]
Surface area of Triangular prism :
[tex] \mathrm{(2 \times \dfrac{1}{2} \times 8 \times 6) + (3 \times 10 \times 20)}[/tex][tex] \mathrm{48 +600 }[/tex][tex]648[/tex]Surface area = 648 cm²
_____________________________
[tex]\mathrm{ \#TeeNForeveR}[/tex]
Solve from the image below
Answers
Answer:
c)
Step-by-step explanation:
Juan puts 36,500 milliliters of gasoline in his vehicle. A liter of gasoline costs $1.68.
How much did the gasoline cost?
Answers
In scientific notation, 8,599,000,000= 8.599 x 10^x. what is the value of X
9
8
7
10
Answers
What is an ordered pair?
Answers
Answer:
A set of numbers used to locate a point on the coordinate plane. Also known as coordinates.
Step-by-step explanation:
Example of an ordered pair : (14,20)
The 14 is the x coordinate, which indicates the position on the horizontal line. (x - axis)
The 20 is the y coordinate, which indicates the position on the vertical line. (y - axis)
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K