Answer:
movie theatre = 20 hours
car wash = 10 hours
Step-by-step explanation:
this would be solved using simultaneous equation
let a = hours worked in theatre
b = hours spent wash cars
15a + 18b = 480 eqn 1
a + b = 30 eqn 2
multiply eqn 2 by 15
15a + 15b = 450 eqn 3
subtract 1 from 3
3b = 30
b = 10 hours
substitute for b in eqn 2
a + 10 = 30
a = 20 hours
Find the value of x by finishing solving the system shown below.
Answer:
x = 10
Step-by-step explanation:
Since both equations give y in terms of x, equate the right sides
3x - 28 = - 2x + 22 ( add 2x to both sides )
5x - 28 = 22 ( add 28 to both sides )
5x = 50 ( divide both sides by 5 )
x = 10
The graph represents the length and
I height of a wheelchair ramp. Find the
slope of the ramp.
Answer: 1/4
Step-by-step explanation: Take point (1,1) put the rise (2) over the run (8) and then simplify.
The cookie-stacking competition is a tradition at Westhaven's annual summer festival, and Bert is helping to set it up this year. The first contestant who creates a single stack using all of their cookies wins a prize! After Bert split all the cookies he had evenly among 4 contestants, each contestant got 24 cookies.
Answer:
is this the full question?
Step-by-step explanation:
Sandy invest $35,000 into a business. If she on 16% of the business, what is the total work for business?
Does this question have any correct answer? I can't see how any of the answer choices are correct.
Answer:
the only one that would make sense is D because it says 1 pair of parallel and the left one only has one pair
Step-by-step explanation:
(you might want to ask your teacher though because its kind of misleading)
Please help due soon!!
Answer: [(3/4)π] in² or (0.75π) in²
Step-by-step explanation:
Here, we are asked to find the area of a sector. So we are going to use the formula: A=πr²(θ/360)
--------------------------------------------------------------
Given
r=3 in
θ=30°
Solve
A=πr²(θ/360)
A=π(3)²(30/360)
A=9π(1/12)
A=[(3/4)π] in²
A=(0.75π) in²
Hope this helps!! :)
Please let me know if you have any questions
A river has a normal depth of 10 feet. After a rain storm, the river is rising a 1.5 feet per hour. What is the river's depth after 4 hours?
Answer:
The answer is 16 feet
Step-by-step explanation:
You do 1.5 feet times 4 hours and you get 6 feet and than you add 10 and 6 and you get 16 feet after 4 hour.
i just want some help please :( I’m tired of all these links .
I’ll give brainlist to whoever answer correct. Do not give any links or answer for points
Answer:
length L = [tex]\sqrt[2]{18}[/tex] or [tex]3\sqrt{2}[/tex]
slope = 45 degree
neither
Step-by-step explanation:
You answer 82% of the questions correctly on a 50-question test. How many questions do you answer incorrectly
please look at picture. i will give brainliest to the correct answer!!!
Answer:
N = 30
Step-by-step explanation:
30 divided by 10 is three. Three plus three equals 6.
Could someone help? I got my answer, but I want to check if I’m right.
Hope it helps you........
I need help plzzzzzzzzzzzzjdbfhrrhebehdbzzzzzzzzzzzzzzzz
Answer:A
Step-by-step explanation: im not too sure but i think 1-2/5=3/5 which would be red so
Answer:
The answer to this is a because it has a sequence of three
Please help. Thank you
Answer:
A
Step-by-step explanation:
look where the plot is Set 1 is at 8 and Set 2 is at 10. obviously 10 is greater than 8
The diagram shows a regular polygon
What is the value of x?
How do I solve this
Answer: x=120°
Step-by-step explanation:
What you are looking for is the value of the exterior angle of the regular polygon.
For a n-sided regular polygon, the external angle is given by the formula 360°/n.
Because the shape in this example is a regular triangle, the value of n is 3.
360°/n
=360°/3
=120°
Therefore, x=120°
A 40-meter-long blade of a wind turbine makes one complete revolution in 10 seconds. To the nearest tenth, the linear velocity of the blade is meters per second.
Answer:
25.13 m/s
Step-by-step explanation:
Linear velocity = Distance / time
The distance = Circumference of turbine = 2πr
Radius, r = 40 m
Circumference= 2 * π * 40 = 251.327
The linear velocity is thus :
Circumference / time
= 251.327m / 10s
= 25.13 m/s
A circular pool has a
circumference of 65.94 ft.
What is the pools diameter?
Answer: 20.989353895 or round it up to 21
Step-by-step explanation:
If we want to find a diameter of a circle and given a circumference, we divide the circumference by pi
so 65.94 divide by pi = 20.989353895
the questions are in the pictures
REAL ANSWERS ONLY PLEASE :) thank you
the Anser un the Fire one is B and the answer on the 2nd one is A
% of $10 = $3
help pls
Answer:
30%
Step-by-step explanation:
3/10=30/100 and 30/100 is the same as 30%
because %'s mean out of 100 so 30% means 30 out of 100 which can be simplified to 3 out of 10 or 3/10 (so its all equal)
Answer:
3%
Step-by-step explanation:
Find the area of a triangle
Answer:
B.17.5cm²
Step-by-step explanation:
S=a+b+c/2=
5+8+7/2=10
S=10
Area of the triangle=[tex]\sqrt{3(5-a)(5-b)(5-c)}[/tex]
⇒[tex]\sqrt{10(10-5)(10-8)(10-7)}[/tex]
⇒[tex]\sqrt{10*5*2*3}[/tex]
⇒[tex]\sqrt{300}[/tex]
⇒17.5cm²
hope it helps...
have a great day!!
Help please, also this is khan academy
Answer:
A
Step-by-step explanation:
Yoy get A by combining like terms.
Find the smallest side of CDE?
Answer:
CE
Step-by-step explanation:
The smallest side is opposite the smallest angle.
Find the approximate length of the line AB PLZZZZZZZZZZZZZZZZZZ HELPPPPPP
Answer:
Approximate length of line AB is 8.6
Step-by-step explanation:
Input Data :
Point 1 (xA, yA) = (8, 2)
Point 2 (xB, yB) = (3, 9)
Objective :
Find the distance between two given points on a line?
Formula :
Distance between two points = √(xB − xA) ^2 + (yB − yA)^2
Solution :
Distance between two points = √(3 − 8) ^2 + (9 − 2) ^2
= √(−5) ^2 + 7^2
= √25 + 49
= √74
= 8.6023
Distance between points (8, 2) and (3, 9) is 8.6023
hope this helps and is right :)
Answer:
First choice
12.0
Step-by-step explanation:
Make a right triangle, drawing straight lines, down from point A and left from point B. Use the pythagorean theorum to solve.
I will use "x," "y," and "z" as sides of the triangle as to not confuse between points a and b.
Line AB is line z
x^2 + y^2 = z^2
8^2 + 9^2 = z^2
64 + 81 = z^2
145 = z^2
(find square roots of both)
12.0416 = z
Express the area of the entire rectangle. Your answer should be a polynomial in standard form, (x+4) (x+5)
Area=
Answer:
[tex]x^{2}[/tex] + 5x + 20
Step-by-step explanation:
(x+4) (x+5)
Expand
x^2 + 5x + 4x + 20
Simplify
[tex]x^{2}[/tex] + 5x + 20
Hope that helps!
HELP ME PLEASE I'll give brainless.
∠IJG = ∠FGE (they are corresponding angle)
So, ∠FGE = 50°
Answer:
∠FGE is also 50°
Step-by-step explanation:
they are corresponding angles.
please help if you can!!!!
I promise I will make brainliest!!!!
Answer: B
Step-by-step explanation: Hope this help :D
Are the two triangles similar to one another? *
1 point
Answer:
yes
Step-by-step explanation:
Valerie watched a movie for 110 minutes During that time Julie read a book fot 2 hours whose activity was longer
Answer:
Julie
Step-by-step explanation:
A 110 minute movie is 1 hour and 50 minutes so julie's two hour long book is longer
Answer:
2 hours= 120 minutes
120>110 Therefore Julie had longer activity
Step-by-step explanation:
Holaaa alguien me puede ayudar
¿Cuál es el valor de “x e “y” en la ecuación?
Es por el sistema de Reduccion
Answer:
x=10-y
Step-by-step explanation:
how do you solve something like this?
Answer:
to find the value of x have to know that they would all add up to 180 degrees. so subtract 98 from 180. then you would have to find the angel of the part on the left.
Step-by-step explanation:
Answer:
X = 41
Step-by-step explanation:
this triangle is isosceles triangle, so
X + X + 98 = 180 ( being triangle)
2X + 98 = 180
2X = 82
therefore : X = 41