Answer:
x = 1Explanation:
- 5x + 2y = 9
y = 7xInsert 7x For 'y'- 5x + 2(7x) = 9
Remove Parenthesis-5x + 2 · 7x = 9
Multiply: 2 · 7 = 14-5x + 14x = 9
Add: -5x + 14x = 9x9x = 9
Divide Both Sides By 99x ÷ 9 = 9 ÷ 9
x = 1Classify each angle
Name Each Angle in Four Ways
Answer:
1) Obtuse angle
2) Obtuse angle
3) Acute angle
You can do 4 and 5. I will give you a hint that acute angles are less than 90 degrees and obtuse angles are more than 90 degrees. And if it is a straight line it is 180 degrees.
6) Angle KLM, MLK, Obtuse angle, and angle 5.
7) Angle DCB, BCD, Obtuse angle, and angle 5.
You can do 8. I will give you a hint that the letters will start from end-middle-end and it can be opposite. If getting confused then look what I did. On muber 6, my I typed angle KLM and angle MLK. Both of them are same but look on how I typed. Also while naming angles, they will be in capital.
Hope this helps, thank you !!
Help i dont know the answer
Answer:
25
Step-by-step explanation:
In her first 5 days, she reads 80 pages. That means that per day, she reads 16 pages. Then, she had 400 pages left, since 480-80 = 400.
So, you divide 400/16 = 25 days.
A dance club had 160 members. There was a membership increase of 5%. How many new person's joined the club.
Texas is home to about 70% of the 47 species of bats in the United States. About how many species of bats live in Texas?
Answer:
33
Step-by-step explanation:
70% of 47 is 33 species
Answer:
32.9
Step-by-step explanation:
please help asap!!!!!!!!!!!!
7853.98mm
Step-by-step explanation:
Circumference is pi times diameter so the diameter is 100 millimeters
Diameter is 2 times the radius so the radius is 50 millimeters
Area is pi times the radius squared so the area is about 7853.98 millimeters squared
Answer:
A = 795.77
Step-by-step explanation:
Using the formulas
A=πr2
C=2πr
Solving forA
A=C2
4π=1002
4·π≈795.77472
Solve for x 6 = 2( x + 0)
Answer:
x = 3
Step-by-step explanation:
Answer: x = 3
Step-by-step explanation:
Can somebody plz help solve each questions for what it equals correclty thanks so much :3
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST !!:DD
The winning time for a race are shown in the table.
Which answer describes the average rate of change from year 2 to year 4?
A) the winning time increased by an average of 0.4 second per year from year 2 to year 4.
B) the winning increased by an average of 0.8 second per year from year 2 to year 4.
C) the winning time increased by an average of 0.475 second per year from year 2 to year 4.
D) the winning time increased by an average of 0.267 second per year from year 2 to year 4.
Answer:
The winning time increased by an average of 0.4 second per year from year 2 to year 4.
Step-by-step explanation:
I just took the quiz
The winning time for a race displayed in the table would be:
A). The winning time increased by an average of 0.4 seconds per year from year 2 to year 4.
Find the increase in winning time:Given that,
Year Winning Time(seconds)
1 27.5
2 28.4
3 28.7
4 29.2
5 29.44
The total change in the time = (0. + 0.3 + 0.5 + 0.24)/4
= 0.485 seconds
If we round off, it becomes 0.5 seconds.
Therefore, it can be considered that an average of 0.5 seconds changes every year from year 2 to 4.
Thus, option A is the correct answer.
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xy^2/xy + x^2y^2
ANSWER ASAP WILL GIVE BRAINLY
Answer:
x (y^2xy + xy^2)
Step-by-step explanation:
A whole number is written on a piece of paper.
You are given three clues to help you work out the number written on the piece
of paper.
Clue 1: Triple the number is between 18 and 33 inclusive.
Clue 2: The number is a prime number.
Clue 3: The number is not a factor of 99.
Use each of the clues above to refine your search.
Enter the list of numbers obtained after each clue to finally find the number
written on the piece of paper.
[3]
Answer:
1)6,7,8,9,10,11
2)7,11
3)7
The whole number is 7.
What is whole number?The group of natural numbers that includes the number 0 is known as whole numbers. The mathematical set of whole numbers is 0 through 9 and is represented by the letter W.
W = {0, 1, 2, 3, 4, …}
To better grasp whole numbers, consider the following information:
Whole numbers make up all natural numbers.There are only full numbers while counting.Zero and all positive integers are whole numbers.Real numbers are all entire numbers.Given:
Triple the number is between 18 and 33 inclusive.
Then the number can be
3x6 = 18
3 x 7= 21
3 x 8= 24
3 x 9= 27
3 x 10= 30
3 x 11=33
Numbers are 6, 7, 8, 9, 10, 11
2. Number is a prime number
The prime numbers are 7 and 11.
3. Number is not a factor of 99
The number is 7 because 11 is factor of 99.
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please help me someone with this problem
Kristen bought a skirt for $25 and tennis shoes for $60. There was 7% tax charged on the total. How much is the total purchase price after tax?
Answer:
$90.95
Step-by-step explanation:
$25+$60=$85
$85x0.07=$5.95
$85+$5.95=$90.95
Answer: $90.95
60+25= 85
85*.07= 5.95
85+5.95= 90.95
A variable needs to be eliminated to solve the system of equations below. Choose the correct first step.
8x+9y= -82
-x-9y=89
Answer:
Step-by-step explanation:
Hey could U help me with this question
Factor as the product of two binomials.
x^2 – 100
Answer:
(x+10)(x-10)
Step-by-step explanation:
20 divided by c write an algebraic expression for the word expression
Step-by-step explanation:
The algebraic expression is
20
----
c
or
20/c
find the geometric mean of 8 and 17
I need help with only B pls
Answer:
The population is increasing
Step-by-step explanation:
You can tell that function is increasing from the equation because the rate of change is [tex]\frac{5}{4} = 1.25[/tex]
Since this value is greater than [tex]1[/tex] it indicates that the population is being increased.
plz mark me brainliest. :)
Four positive whole numbers add up to 96
One of the numbers is a multiple of 19
The other three numbers are equal.
What are the four
numbers?
Multiple of 19
goes here
Other four Positive whole number is 13
What is whole number?The whole numbers are the numbers without fractions and it is a collection of positive integers and zero. It is represented by the symbol “W” and the set of numbers are {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,……………}. Zero as a whole represents nothing or a null value.
According to the question
First, we consider that if we add together three equal numbers, the result must be a multiple of three. For example, 7 + 7 + 7 = 21, or 11 + 11 + 11 = 33.
Algebraically, we'd say that n + n + n = 3n.
So this means that if we subtract the first number (the one that's a multiple of 19) from 97, we will have a result that is a multiple of 3.
What could the first number be? 19, 38, 57 or 76 . Any other value is larger than the sum of 7, which is not possible if all the integers are non-negative.
Based on this, we can find all possible sums of the other four numbers, by subtracting each of the numbers above from 96:
96 - 19 = 77
96 - 38 = 58
96 - 57 = 39
96 - 76 = 20
Remember what I said earlier? The other four numbers must add to a multiple of 3. The only one of those sums above that is a multiple of 3 is 39. Therefore, we conclude that the first number is 57, and the other four numbers are each 13 (because 39 / 3 = 13).
Hence, other four number is 13
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A variable needs to be eliminated to solve the system of equations below.
Choose the correct first step.
-10x + y = 64
-10x + 5y = 40
Answer:
-10x + y = 64
Step-by-step explanation:
hope it helps
WILL MARK YOU BRAINLIEST
Answer:
because WXYZ is a rhombus
=> WX // YZ
=> ZWX + WZY = 180⁰
=> WZY = 180⁰ - ZWX = 180⁰ - 77⁰ = 103⁰
I need help Please!!!!
Answer:
48 inches
Step-by-step explanation:
[8/3](18) =48
Can someone please help i will mark brainliest i need help asap.
Answer:
14.3
Step-by-step explanation:
14.3
Answer:
13 inches or 13.3 feet
Step-by-step explanation:
:)
Erin is flying a kite. Originally, she holds the string in her hands, about 4 feet above the ground. She lets out 29 feet of string and estimates the height of the kite to be 24 feet above the ground. She then lets out another 60 feet of string. Approximately how high is the kite currently above the ground?
Answers are
65 feet
50 feet
84 feet
70 feet
Which is it
Answer:
84 maybe
Step-by-step explanation:
PLEASEEE HELP MEEEEE EASY 10 POINTSSS
Answer:
y = -3x + 3
Hope this helps, thank you !!
hi!!! what’s the area and formula for this problem??
Answer:
134.28 m²
Step-by-step explanation:
I suppose this is an isosceles triangle
tan 75° = 2 + √3 = 3.73 = h / 6 (h: height and 6 = 12/2, 1/2 of base)
h = 6 x 3.73 = 22.38
Area = (12 x 22.38) / 2 = 134.28
Find the solution of the system of equations -7x-3y=-20 3x+6y=-15
9514 1404 393
Answer:
(5, -5)
Step-by-step explanation:
I like a graphing calculator for quickly finding a solution to a system of equations. It shows the solution to be (5, -5).
__
We can add the second equation to 2 times the first to eliminate the y-variable.
2(-7x -3y) +(3x +6y) = 2(-20) +(-15)
-11x = -55 . . . . . collect terms
x = 5 . . . . . . . . . divide by -11
Substituting this value into the second equation, we have ...
3(5) +6y = -15
6y = -30 . . . . . . . . subtract 15
y = -5 . . . . . . . . . . divide by 6
The solution is (x, y) = (5, -5).
How do you find the perimeter of any closed figure?
Answer:
add the lengths of each side of the shape. If there are units, include units in your final result.
Step-by-step explanation:
add the lengths of each side of the shape. If there are units, include units in your final result.
Answer:
add up all of the sides. hope this helps!
Step-by-step explanation:
Perimeter is a one-dimensional measurement that represents the distance around a closed geometric figure or shape (no gaps). To find perimeter, add the lengths of each side of the shape. If there are units, include units in your final result.
please help again :,)) is it one solution, all solutions, or one
please show your work.
Answer:
Infinite many solutions
Step-by-step explanation:
If you graph it there is only 1 line
HELP PLZ there are no answer choices plz
Which relation is a function?
{(5, 0), (–8, –5), (–8, 5), (–5, –8)}
{(5, 0), (0, 5), (–5, –5)}
{(5, 0), (0, –8), (5, –5)}
{5, 0, –8, –5}