Answers
Answer:
for the first picture, she cleans 30 windows
the second picture is 52/100 :)
Answer:
It's B for the first one.
For the second one, it is C
Step-by-step explanation:
30 * 0.3 = 9
So 30% of 30 is 9. She did 9 windows.
0.52 = 52/100
It's 52/100 because 0.52 = 52%. 52% then equals 52/100.
52/100 = 13/25
So the answer is 13/25
Related Questions
Find the exact value of cos 120° in simplest form with a rational
denominator.
Answers
Given:
cos 120°
To find:
The exact value of cos 120° in simplest form with a rational denominator.
Solution:
We have,
[tex]\cos 120^\circ[/tex]
It can be written as
[tex]\cos 120^\circ=\cos (90^\circ+30^\circ)[/tex]
[tex]\cos 120^\circ=-\sin 30^\circ[/tex] [tex][\because \cos (90^\circ-\theta)=-\sin \theta][/tex]
[tex]\cos 120^\circ=-\left(\dfrac{1}{2}\right)[/tex] [tex][\because \sin 30^\circ=\dfrac{1}{2}][/tex]
[tex]\cos 120^\circ=-\dfrac{1}{2}[/tex]
Therefore, the exact value of cos 120° is [tex]-\dfrac{1}{2}[/tex].
A bike in a store costs $230. It's on sale for 25% off. Find the sale price.
Answers
Answer:
57.50 dollars
Step-by-step explanation:
you can use a calculator and multiply so it would give you the finishes product
Answer:
172.5
Step-by-step explanation:
you do 230/4 which is 57.5 then you got to do 57.5 times 3 which is 172.5
A rectangular field has a length of x metres.
The width of the field is (2x-5) metres.
Show that the perimeter of the field is (6x-10) metres.
Answers
The perimeter of a shape is the length of all the sides added together. In this problem, the length of the rectangle is x and the width is (2x-5). With the information given, we want to show that it equals or is equivalent to (6x-10), which is supposed to represent the perimeter of the rectangle.
Before I write my equation I what to make sure you understand that there are of course two side lengths of this rectangle and two widths. That being said, the equation would look like this:
2x + 2(2x-5) = 6x-10
(both side lengths) + (both widths) = perimeter
I'll show you how you can simplify this equation to show that the perimeter of the field is 6x-10 :
2x + 2(2x-5) = 6x-10
(first step would be to distribute the 2 into 2x-5)
2x + 4x-10 = 6x-10
(add the x's on the left side to simplify)
6x-10 = 6x-10
Well well, what do we have here :). We ended up with the same expression on each side of the equal sign. We totally know that they're equivalent, in fact they're the same.
(I honestly really hope this helps. I confused myself a little thinking a lot about this problem. Please let me know if you run into any issues with my answer. I'm pretty sure I'm accurate on the work I showed. I also wasn't able to view your PDF sadly :( )
is love real? why or why not
Answers
Answer:
yep
Step-by-step explanation:
love is real, and it's out there, it's just more rare than some people think. love isn't "oh, i love pizza" or "i love you because you did my homework" because those kinds of love are temporary, but passionate, unbreakable love is real, it does exist. i see it in old married couples that have spent so long together, they start acting like one another, i see it in very lucky newlyweds, that have found real love early and will last forever. i see it, i know it's there, just not everyone gets to it, and not everyone understands it, i know i don't.
Answer:
yea lets date
Step-by-step explanation:
Nijah scores 56 marks on a test her teacher tells her it is equivalent to 70%. What is the maximum score on the paper
Answers
Answer:
The answer is 80
Step-by-step explanation:
56 / 7= 8
8x10 =80
HEY CAN ANYONE ANSWER DIS MATH QUESTION!!
Answers
Answer:
no the y may be to the degree of 1 but the variables in the equation violate the linear equation definition. Therefore the equation is not linear.
Step-by-step explanation:
A linear equation is an equation of a straight line, which means that the degree of a linear equation must be 0 or 1 for each of its variables.
Which angle is coterminal to (3pi)/4 radians? - (5pi)/4 radians - (3pi)/4 radians (5pi)/4 (7pi)/4 radians
Answers
Answer:
-5pi/4
Step-by-step explanation:
3pi/4 on the unit circle is coterminal with -5pi/4 because they are the same distance from 0
Answer: a. -5pi/4
Step-by-step explanation:
Edge
It would take Charlene and Gina 18minutes to organize Chinese comic book collection if they work together do you know works alone it would take her 15 minutes longer than it would take Charlene working alone when X represents the number of minutes it takes Charlene to organize her comic book collection working alone the situation is represented by this equation
Answers
Answer:
the answer is x=-9
Step-by-step explanation:
Christine purchased a prepaid phone card for $25 . Long distance calls cost 21 cents a minute using this card. Christine used her card only once to make a long distance call. If the remaining credit on her card is $17.23 , how many minutes did her call last?
Answers
Answer : 37 minutes
Step-by-step explanation:
Subtract 25 and 17.23 then divide by 0.21
25-17.23=7.77 divide by 0.21 (21 divided by 100) =37
Always, sometimes, or never true: A vertical line is parallel to the y-axis?
Answers
Answer:
Sometimes, because a vertical line can be on top of the y-axis or next to it.
Hope it helps :)
ASAP ILL GIVE BRAINLIEST
1-Describe the recursive rule for the sequence 1944, 324, 54, 9, ...
2-Is the sequence below arithmetic or geometric? Explain how you determined this.
8, 16, 32, 64, ...
3-Is the sequence below arithmetic or geometric? Explain how you determined this.
50, 30, 10, -10, ...
Answers
Answer:
1 is multipy the last term by 1/6
2 is geometric because you multiply by 2 every time.
3 is arithmitic sequence because you subtract 20 every time
Step-by-step explanation:
Please please please help me with math
Answers
Answer:
30 dollars
Step-by-step explanation:
The y-intercept is 15 and the slope is 30
How?
slope = change in y/change in x
Drag the tiles to the correct boxes to complete the pairs. Match each ratio with its simplest form.
3:1
2:3
1:3
3:4
6:7
9:7
21:28
96:32
22:33
12:36
72:56
54: 63
Answers
Answer:
ll
Step-by-step explanation:
please help i will give you brainlist
Elena and Jada each make money by helping out their neighbors.
Elena babysits. Her earnings are given by the equation y=8.40x, where x represents how many hours she works and y represents how much money she earns.
Jada earns $7 per hour mowing her neighbors’ lawns.
A. Who makes more money after working 12 hours? How much more do they make? Explain how you know.
B. What is the rate of change for each situation and what does it mean?
C. How long would it take each person to earn $150? Explain or show your reasoning.
Answers
Answer for Part A:
Elena makes more money than Jada does. Elena makes $1.40 more than Jada does.
Explanation for Part A:
The equation for Elena tells us that she makes $8.40 per hour. Jada makes $7 an hour. Since 8.4 > 7, Elena makes more money than Jada per hour
PLZZZ HELP will mark brainliest!
Answers
Answer:
(3,8): No, (-1,-11): Yes, (2,7): Yes, (0,-6): No
Step-by-step explanation:
Basically, you just substitute x and y with the numbers given.
18x - 3y = 15
y = 6x - 5
(3,8):
18(3) - 3(8) = 15
54 - 24 = 30 It is not equal to 15, so it does not work.
y = 6x - 5
8 = 6(3) - 5
8 = 13 It is not equal to 8, so it does not work.
Therefore, (3,8) is not a solution.
Try this for every pair and you will find that (-1,-11) and (2,7) are solutions.
I hope this helps!
Identify each group of segments that can form a right triangle. Select all
that apply. *
7, 24, 25
9, 40, 41
24, 69, 74
39, 52, 65
8, 15, 19
11. 60, 61
30, 60, 68
40, 42, 58
Answers
Answer:
1, 2, 4, 6, 8Step-by-step explanation:
Right triangles have a property of:
c² = a² + b², as per PythagoreanLet's try each group:
25² - 24² = (25+24)(25-24) = 49 = 7² - yes41² - 40² = (41 + 40)(41-40) = 81 = 9² - yes74² - 69² = (74 + 69)(74 - 69) = 143*5 ≠ 24² - no65² - 52² = (65 + 52)(65 - 52) = 117*13 = 13*9*13 = 39² - yes19² - 15² = (19 + 15)(19 - 15) = 34*4 = 17*8 ≠ 8² - no61² - 60² = (61+60(61 - 60) = 121 = 11² - yes68² - 60² = (68 + 60)(68 - 60) = 128*8 ≠ 30² - no58² - 42² = (58 + 42)(58 - 42) = 100*16 = 40² - yes⚠️15 POINTS+ BRAINLIEST ANSWER ⚠️
What is the slope of the line that passes through the points (5, -11) and (-9, 17)?
A.-2
B.-1/2
C. 7
D. 2
Answers
Answer:
-2
Step-by-step explanation:
Formula for slope: (y2-y1)/(x2-x1)
Plug in the given x and y values
(17-(-11))/((-9)-5)
(17+11)/((-9)-5)
28/(-14)=-2
Answer:
a. -2
Step-by-step explanation:
the gradient, m is also called the slope
so m=[tex]\frac{y_{2} -y_{1} }{x_{2}-x_{1} }[/tex]
= [tex]\frac{17-(-11)}{-9-5}[/tex]
= [tex]\frac{28}{-14}[/tex]
= -2
Solve for x. 2(x-4)=17 a. X=1 b. X=2 c. X=12.5 d. X= 11
Answers
Explanation: if you put 12.5 instead of x. 2(12.5-4)=17 and follow the order of operations you should get 17.
Answer:
c. x=12.5
Step-by-step explanation:
Equation Solving
Given the equation
2(x - 4) = 17
Solving for x implies doing several operations needed to have x isolated in the left part of the equation.
Dividing by 2:
x - 4 = 17/2
x - 4 = 8.5
Now we add 4:
x = 8.5 + 4
x = 12.5
Answer: c. x=12.5
Tell how many terms the expression has 15.5 - (6x2)-(16 ÷ 4)
Answers
Answer:
There are three terms in the expression.
Step-by-step explanation:
Some background knowledge:
Algebraic expressions do not include equal signs.
Terms are generally values that are added or subtracted.
For example,
2x+6 has two terms which are 2x and 6.
Here:
The term 2x has a coefficient (the number next to a variable) of 2 and the term '6' is a constant.
Please note that a constant is a number that does not include a variable.
LET US SOLVE OUR CASE:
Given the expression
15.5 - (6 x 2) - (16 ÷ 4)
Please note that:
(6 x 2) is one term. Because of the parentheses, it groups it as one term. (16 ÷ 4) is also one term. Because of the parentheses, it groups it as one term.Therefore, there are three terms in the expression.
The national executive of M.A.N is made up of 10 men and 4 women what is the ratio in its simplest form of men to women in the executive
Answers
Answer:
10 to 4
Step-by-step explanation:
If there are 10 men and 4 women and you want to go from men to women then yes the answer is 10 to 4
Answer: 5 to 2
Step-by-step explanation: divieven both by two
Select the correct answer
from each drop-down menu.
The function f(X) = x^3 has been transformed, resulting in function h.
h(x) = -(x + 2)^3– 4
To create function h, function f was translated 2 units (BLANK)
translated 4 units (BLANK)
,and reflected across the
Answers
Answer:
Translated 2 units Right
and Translated 4 units left and Across the y - axis
Now the new function is
h(x) = -( x + 2 )³ - 4
Step-by-step explanation:
Step(i):-
Type of transformation change of function
a) The translated left 'c' units x - c
b) The translated Right 'c' units x + c
Step(ii)
The given function f(x) = x³
The given function is translated '2' units right side then the new function
h(x) = ( x + 2 )³
and next the translated '4 ' units left sides and reflected across the y-axis
Now the new function is
h(x) = -( x + 2 )³ - 4
Answer: left, down,x-axis
Step-by-step explanation:
please marking brainlist. what is 8d-5d=
Answers
Answer:
3d
Step-by-step explanation:
My brainliest please
Answer:
3d
Step-by-step explanation:
do 8-5+3, but you will still need to multiply the 3 and d.
Oki received a statement on her Certificate of Deposit showing that her investment had returned $4,836 over its life. If the Certificate of Deposit pays a simple interest rate of 3.1% and her initial investment was $19,500, how long had the money been invested?
Answers
Answer:
3.1% of 19,500= 604.50
4836 ÷ 604.50 = 8
8 years is the answer
Find the slope of the line through each pair of points.
(-2, -12) and (-18, -12)
Answers
Answer:
0/16
Step-by-step explanation:
you use the equation y2-y1/x2-x1 so -12-(-12) which is 0 then do -18-(-2)=-16 so the slope is 0/-16
Which of the following has no solution?
2(4 + x) = 8 + 2x
2(6 + x) = 14 + 2x
10x + 5 = 3(5x +7)
5x - 10 = x + 20
Answers
Answer:
B
Step-by-step explanation:
Letter B as no solution. Because there are no values of x that make the equation true.
Solve the system by substitution.
y= -x
10x+2y=40
Answers
10x+2y = 40
You sub y= -x
10x+2(-x) = 40
And the answer is x=5
The solution of the system of linear equation is given by (5,-5)
What are linear equations?Linear equations help in representing the relationship between variables such as x, y, and z, and are expressed in exponents of one degree. In these linear equations, we use algebra, starting from the basics such as the addition and subtraction of algebraic expressions.
Given here; The system of linear equations is given by
y=-x and 10x+2y=40
Solving for x by substituting y=-x we get
10x-2x=40
x=5
Then the y=-5
Hence, The solution of the system of linear equation is given by (5,-5)
Learn more about linear equations here:
https://brainly.com/question/29739212
#SPJ2
please help super confused
Answers
Answer:
∠ EHK
Step-by-step explanation:
Adjacent angles are positioned next to each other on a straight line and are supplementary.
∠ IHK is next to ∠ EHK on the line DI and are adjacent
PLEASE HELP!!!
"Which graph represents the function f(x) = |x| – 4?"
Answers
Answer:
the second picture
Step-by-step explanation:
you substitute x=0
into y=abs(x)-4
you get y=0 -4= -4
so x=0 y= -4
look at each graph
then substitute y=0
into y=abs(x) -4
you get 0= abs(x) -4
4=abs(x)
x=4 or x=-4
look at each graph
so you will find it`s graph 2
What is the slope of a line whose equation is 2x-y=7 fully reduce the answer
Answers
Putting the equation 2x - y = 7 you get y = 2x -7 so the slope of the equation is 2
A rectangle has sides that measure x + 1/4
and 2x + 1/3. What is the perimeter of the
rectangle?
Answers
Answer:
6x + 5/6
Step-by-step explanation:
2(x + 1/4) + 2(2x + 1/3)
2x + 1/2 + 4x + 2/3
6x + 5/6
