Answer:
6 pairs
Step-by-step explanation:
Since we are given a ratio/proportion problem and 3 values and 1 variable then we can use the Rule of three to solve this problem. We simply multiply the diagonal values available and divide by the 3 value to find the variable of the ratio like so...
4 pairs <======> $90.52
d pairs <======> $135.78
(4 * 135.78) / 90.52 = 6 pairs
Finally, we can see that Justin ended up buying a total of 6 pairs of sneakers.
please can anyone explain congruent triangles
Congruent Triangles
Two triangles are said to be congruent if their sides have the same length and angles have same measure. Thus, two triangles can be superimposed side to side and angle to angle.
i got the answer which is A and pls tell me if im right
Answer:
yes you are correct A is the correct answer
Answer:
D
Step-by-step explanation:
10%of 36=3.6
5% of 36= 1.8
3.6+1.8 will give you the right answer
63% of a university's freshman class are majoring in Economics. If 3654 students in the freshman class are Economics majors, how many students are in the freshman class?
Step-by-step explanation:
holaaaaaaaaaaaaaaaaaaa22zz
Answer:
5800
Step-by-step explanation:
thank me
c:
the volume of a tank is increased by 12% to 952L, find its original volume
Answer:
1.12x=952
x=850L
Step-by-step explanation:
Answer:
850 L
Step-by-step explanation:
Make an equation:
1.12x = 952
Solve for x:
x = 850
Fill in the blank with the correct response.
In the image below, the corresponding angle to angle 1 is angle
Answer:
the aanswer would be 3
Step-by-step explanation:
Answer:
The answer is 3
Step-by-step explanation:
Is 1+4(3x-10)-12x equal to -9?
And how do you get the answer?
Answer:
NO, It's -39
Step-by-step explanation:
1+4(3x-10)-12x
1+12x-40-12x= -39
8x + 12
Can someone please factorise this
Answer:
4(2x + 3)
Step-by-step explanation:
Given
8x + 12 ← factor out the common factor of 4 from both terms
= 4(2x + 3)
Find the area of the shaded region. enter a decimal rounded to the nearest tenth
Answer:
78.42
Step-by-step explanation:
Area of 360 - 80 degree region.
You need to find out the region of the major arc where the circle is almost complete. The area left over will be calculated later
Angle = 360 -80
Angle = 280 degrees.
Area = [tex]\frac{angle*3.14*r^2}{360}[/tex]
Area = [tex]\frac{280*3.14*5^2}{360}[/tex]
Area = 23800/360
Area = 66.11
Area of the Triangle with sides of 5 cm each
Here's where I get into a bit of trouble. I have to assume you know some trig.
Find the height
Cos(40) = The height / the hypotenuse
Cos(40) = h/5
0.7760 = h/5
h = 0.7760*5
h = 3.830
Find 1/2 the base (the chord of the circle)
Sin(40) = 1/2 base / hypotenuse
Sin(40) = 1/2 b / 5 Multiply both sides by 5
1/2 b = 5*sin(40) Find the sin(40)
1/2 b = 5*.6428 Combine the right
1/2 b = 3.139 multiply by 2
b = 6.4278
Find the area of the triangle
Area = 1/2 b * h
b = 6.4278
h = 3.830
Area = 1/2 * 6.4278*3.830
Area = 12.31 cm^2
Total Area
12.31 + 66.11 = 78.42
Answer:
73.6
Step-by-step explanation:
Solve for b in the equation 4(b + 2) = 16
Answer:
b=2
Step-by-step explanation:
Please answer fast, it's important... Q) find the volume of cube whose dimensions are (x+7y), (7x-y) and (xy-5).
Answer:
[tex]Volume = 7x^3y+48x^2y^2-7xy^3 -35x^2-240xy-35y^2[/tex]
Step-by-step explanation:
Given
Shape: Cube
Dimension: (x+7y), (7x-y) and (xy-5).
Required
Determine the volume
The volume is calculated by multiplying the dimensions:
[tex]Volume = (x+7y) * (7x-y) * (xy-5)[/tex]
Evaluate the first 2 brackets
[tex]Volume = [x(7x-y)+7y(7x-y)] * (xy-5)[/tex]
[tex]Volume = [(7x^2-xy)+(49xy-7y^2)] * (xy-5)[/tex]
[tex]Volume = [7x^2-xy+49xy-7y^2] * (xy-5)[/tex]
[tex]Volume = [7x^2+48xy-7y^2] * (xy-5)[/tex]
Open brackets
[tex]Volume = xy[7x^2+48xy-7y^2] -5[7x^2+48xy-7y^2][/tex]
[tex]Volume = 7x^3y+48x^2y^2-7xy^3 -35x^2-240xy-35y^2[/tex]
Can someone help me? I posted my question twice and I need help. I’m wasting my points just so nobody can help me :(
Answer:
Yeah i can try to do your questio i might not be able to answer it but ill try my best!
Step-by-step explanation:
Can solve this problem please
Answer:
It is C
Step-by-step explanation:
C is true because you can make 12 per hour in the table shown
please help me i need this ASAP
Answer:
30 because of vertical angles.
Answer:
It is 30
Step-by-step explanation:
Hope this helps have an amazing day/month/year!
In a jar of blue and red marbles the ratio of blue marbles to red marbles is 5 to 3 there are 320 marbles in the jar how many red marbles are in the jar
Answer:
120 red marbles
Step-by-step explanation:
5 to 3 gives a total of 8
let x = # red marbles
3 = x
8 320
8x = 960
x = 120
-7k + 6k2 = 33
solve using the quadratic formula
Answer:[tex]6k^2-7k=33\\-33 -33\\6k^2-7k-33=0\\a=6\\b=-7\\c=-33\\\\k=-(-7)+/-\sqrt{-7^2-4(6)(-33)} /2(6)\\\\k=\frac{7+/-\sqrt{841} }{12} \\k=3,-11/6[/tex]
Jessica picked 40 apples. She gave 15 apples away. What percent of the apples does Jessica still have?
Please help im begging right now. I need the work and explanation on how u got it im counting on you guys this is a word problem. Im in middle school (6th grade) i dont know why it says im in high school.
Ill make it 30 points. JUST PLEASEEE
Answer:
62.5%
Step-by-step explanation:
40-15=25 apples left
25 apples/40 total=5/8 or 0.625
Translating that to a percent, we get 62.5% of the total apples left
Jan 10, 7:28:48 PM What is the slope of a line parallel to the line whose equation is 3x - 6y = 18. Fully reduce your answer.
Answer:
[tex]1/2[/tex]
Step-by-step explanation:
We are given the line:
[tex]3x-6y=18[/tex]
And we want to find the slope of the line parallel to this given line.
Remember that parallel lines have the same slope. So, if we can determine the slope of the given line, we have the slope of its parallel line.
To determine the slope of the given line, we simply have to isolate the y. So, we can first divide everything by 3. This yields:
[tex]x-2y=6[/tex]
Adding 2y to both sides yields:
[tex]x=6+2y[/tex]
And subtracting 6 from both sides yields:
[tex]x-6=2y[/tex]
Finally, dividing everything by 2 gives us:
[tex]\displaystyle y=\frac{1}{2}x-3[/tex]
Hence, the slope of our line is 1/2.
So, the slope of the line parallel to this line must also be 1/2.
2. Lin’s family buys 2 adult tickets and 2 child tickets for $26. Mike’s family buys 2 adult tickets and 3 child tickets for $31. Which system represents the situation? PLEASE HELP , no one ever helps please if u do pls!
Answer:
the adult tickets are 8 dollars and they kid tickets are 5 dollars bc 8+8+5+5=26 and mike's family is 8+8+5+5+5=31 hopes this help so each adult ticket is 8 dollars and each kid ticket is 5 dollars
Step-by-step explanation:
hope this helps❤️
Make g the subject of the formula w= 7 - Vg
Answer:
w=7-vg
Vg=7-w
Vg/v=7-w/v
G=7-w/v
If a data set is normally distributed, what percent of the data will lie below the mean
A) 99,7%
B)68%
C)50%
D)95%
Answer:
c
Step-by-step explanation:
Please help kind of struggling with this :P
Answer:
3
Step-by-step explanation:
(48-6^2)/4
6^2 = 36
48 - 36 = 12
12/4
3
edit: I had the wrong answer, I fixed it though
The number of movies watched by several students in the last month is shown in the list.
3,5, 3, 1,4,2,1,3,5,5, 2, 1,4,5,1,3,1, 2, 1,5
Which dot plot represents this data?
:
Number of Movies
Number of Movies
D
Number of Movies
Number of Movies
Answer:
Plot number 2
Step-by-step explanation:
The sum of a number and 8 equal to 15
y - 8 = 15
5 + 7 = 8
x + 8 = 15
Step-by-step explanation:
Twice the sum of a number and seven
a) 2(x+7)
0.4(2-q=0.2(q+7) hurry please
Answer:
q=-1
Step-by-step explanation:
.8-.4q=.2q+1.4
-.2q -.2q
.8-.6q=1.4
-.8 -.8
-.6q= 0.6
/-.6 /-.6
q= -1
The volume of a sphere can be found using the formula V = πr . If the sphere has a diameter of 10x y z mm, what is the volume of the sphere in cubic millimeters?
Answer:
500πx³y³z³
Step-by-step explanation:
Volume of a sphere = 4πr³
r is the radius of the sphere
Given
Diameter of the sphere = 10xyz mm
Radius = diameter/2
Radius = 10xyz/2
Radius = 5xyz
Substitute the radius into the formula
Volume of the sphere = 4π(5xyz)³
Volume of the sphere = = 4π(125)x³y³z³
Volume of the sphere = 500πx³y³z³
Hence the volume of the sphere is 500πx³y³z³ mm³
Timothy purchased a computer for $1000. The value of the computer depreciates by 20% every year.
Answer:
We can apply the straight-line method to solve for the value of the computer every year.
Step-by-step explanation:
Step one:
What is depreciation?
It can be defined as the loss of value of a commodity.
In this problem, the percent depreciation is given as 20% which means that 20% of the worth of the computer is lost every year.
We are told that the computer cost is $1000
let the number of years taken for the computer to depreciate be x
Step two:
Say we want to find the value of the computer after 1 year, the value of the computer will be
Value of computer= 1000-20/100*1000
Value of computer= 1000-0.2*1000
Value of computer= 1000-200
Value of computer= $800
Step three:
For the second year, the value will be
Value of computer= 800-20/100*800
Value of computer= 800-0.2*800
Value of computer= 800-160
Value of computer= $640
Answer:
This situation represents exponential decay. The rate of growth or decay, r, is equal to 0.2. So the value of the computer each year is 80% of the value in the previous year. It will take 3 years for the value of the computer to reach $512.
Step-by-step explanation:
PLATOOOOOO
3c + 3 > 15
Solve these inequality
Answer:
c>4
Step-by-step explanation:
You start off by subtracting 3 from both sides, once you do that you would have 3c>12 then divide each side by 3 and you get 4!
I hope this helps, and have a great day! :)
7 out of 25 employees at Carlo's Car Repair wear contact lenses. What percent of the employees wear contact lenses?
Answer:
28%
Step-by-step explanation:
7/25 = 0.28
0.28 x 100 = 28
Answer:
28%
Step-by-step explanation:
since 25 multiplied by 4 gives exactly 100 you can multiply 7 by 4 = 28
7 out of 25 = 28%
Ace
geometry (triangle basics)
Answer:
BT
angle T
AT
have a good day
Please hurry Simplify. Enter the answer in the box.
[tex] \sqrt{1.21} [/tex]
Answer:
the answer is 3
15/(2+3)
=15/5
=3
Step-by-step explanation: