The value of x when y = 84 is 14
From the question,
The value of y varies directly with x
That is,
y ∝ x
Introducing the constant of proportionality, k
We get,
y = kx
Also, from the question
If x = 3, then y = 18
Putting these values into the equation, we can determine the value of k
[tex]y = kx[/tex]
[tex]18 = k \times 3[/tex]
Now, divide both sides by 3
[tex]\frac{18}{3}=\frac{k \times 3}{3}[/tex]
[tex]6 = k[/tex]
∴ k = 6
Now, to determine the value of x when y = 84
We will put y = 84 and the value of k =6 into the equation
[tex]y = kx[/tex]
[tex]84 = 6 x[/tex]
Divide both sides by 6
[tex]\frac{84}{6} = \frac{6x}{6}[/tex]
[tex]14 = x[/tex]
∴ [tex]x = 14[/tex]
Hence, the value of x when y = 84 is 14
Learn more here: https://brainly.com/question/17531464
What is (-7)^2 simplified?
Answer:
the answer is 49
Step-by-step explanation:
Pls help with my homework,
5,11,12
The height of a cone is 10 inches and the radius of the cone is 4 inches. What is the approximate volume golf the cone?
Answer:
V = 167.55 inches^3
Step-by-step explanation:
[tex]v = \frac{1}{3} \pi {r}^{2} \times h \\ v = \frac{1}{3} (3.14) \times ( {4})^{2} \times (10) \\ v = 167.55 \: \: \: {inches}^{3} [/tex]
I hope that is useful for :)
pls help me I have no idea what I'm doing
Answer:
3.2mm ^3
Step-by-step explanation:
First find the scale factor to get the height of the smaller figure
SF= 1/5 or 0.2
Then use the Volume equation for triangular pyramid 1/3*(base area)*(height)
Your equation should look like this:
1/3 (4)(2.4)
9.6/3
Volume= 3.2 mm ^3
NO LINKS PLEASE! 3-6
Answer:
3. 52(1).93 + (7).1
4. (0).31 + (5)
5. (8).01 + 2(3).8
6. (3) + (9).62
the diameter of a sphere is 15 inches. what is the volume of the sphere?
Answer:
22222222222222222222222
Step-by-step explanation:
Kim wants to solve the equation 538+ 223= x. How should Kim rewrite the sum in order to solve for x?
Answer:
x = 761
Step-by-step explanation:
x = 538 + 223
x = 761
Find the values of x and y.
Answer:
Step-by-step explanation:
y = 5
All sides measure the same So 8y= 40 y = 5
x = 30 degrees
The straight line of 40+40 is a straigth angle of 180 Each angle of equilateral triangle is 60 degrees.So its supplementary is 120.The other 2 angles need to add to 60 (30 each) to sum 180 in a triangle
Need help with number 6 please.
Answer: D
Step-by-step explanation:
36.20/10= 3.62
3.62x7= 25.34
$25.34
What is 10% of 30 plz help I am stuck in this answer
Answer:
it's 3
Step-by-step explanation:
In a survey taken 6/10 of students chose to attend in person learning on Mondays. 3/10 of students chose Tuesdays. How many students chose Monday or Tuesday?
Answer:
9/10 students chose Monday or Tuesday.
or
90% of students chose Monday or Tuesday
Explanation:
We add both fractions 6/10 + 3/10 which equals 9/10
B!!! i don’t understand it!!! by tonight please
Answer:
x = 7
y = 25
Step-by-step explanation:
First, we know that x=7 because has the same hypotenuse (the long side) and also has a right angle.
Now, to find out y. The equation for discovering the hypotenuse is:
c = √(a² + b²)
C is the hypotenuse.
A is one of the shorter sides.
B is also one of the shorter sides.
NOTICE: THIS EQUATION ONLY WORKS FOR RIGHT TRIANGLES.
So, now you just need to fill the equation in:
c = √(7² + 24²)
c = √(49 + 576)
c = √(625)
c= 25
So, now we have y, the hypotenuse!
Hope this helped :D
Question 3
The equation y = 3x − 3 can be used to find y when x is given. Which question can be answered using this equation?
Select one:
Daniel is 3 years younger than 3 times Allison's age. How old is Daniel?
The cost of the necklace is more than 3 times the cost of the earrings. What is the cost of the earrings?
Mr. Byrd worked 3 hours less than 2 times his regular shift on Tuesday. How many hours is his regular shift?
Jacqui and Alex spent 3 hours more than 3 times the original time planned to build the new deck on their house. How much time did they spend?
A skateboard ramp at a park has an inclination of 54º and its base is 12 feet long. What is the length of the ramp?
The length of the skateboard ramp at the park is 20.4 feet.
Trigonometric ratioTrigonometric ratio is used to show the relationship between the sides and angles of a right angled triangle.
Let x represent the length of the ramp, hence using trigonometric ratio:
cos(54) = 12/x
x = 12/cos(54)
x = 20.4 feet
The length of the skateboard ramp at the park is 20.4 feet.
Find out more on trigonometric ratio at: https://brainly.com/question/4326804
Three of the flowers in the bouquet are lilies. There are a dozen flowers total. What percent of the flowers were lilies?
Answer:
25%
Step-by-step explanation:
If six pairs of jeans cost $235.74, how much would 2 pairs of jeans cost?
Answer:
$78.58
Step-by-step explanation:
First you divide 235.74 by six to find the individdual jean price (235.74/6=39.29) Then you add 39.29+39.29 = 78.58
Someone help plz make sure it’s right and include work plz or explanation
Answer:
right triangle
Step-by-step explanation:
Answer:
Right triangle is your answer ☺️☺️☺️
who here dose not like edg
Answer:
Step-by-step explanation:
i dont have edg but i use ap'ex and i hate it so much
Answer:
MEE I am so behind. Latterly why do they give us so many lessons a day. I am just doing well I am online. I can't what until I go back to my normal school
Step-by-step explanation:
In the figure to the right, if AC = 21 and BC = 18, what is the
radius?
Triangle is missing, so i have attached it.
Answer:
Radius = 10.82
Step-by-step explanation:
From the image attached, the triangle is obviously a right angle triangle and therefore, the missing side (AB) which is the radius can be found via pythagoras theorem.
We are given;
AC = 21
BC = 18
Thus;
|AC|² = |AB|² + |BC|²
21² = |AB|² + 18²
|AB|² = 441 - 324
AB = √117
AB = 10.82
Answer: The answer is 10.8 mathxl/pearson2022
Alice found the area of the figure by breaking apart it apart where the dashed line is drawn. Her work is shown below. area of rectangle = bh = 6(2) = 12 mm2 area of triangle = bh = 2(2) = 4 mm2 area of figure = 12 + 4 = 16 mm2 A figure can be broken into a rectangle and triangle. The rectangle has a base of 6 millimeters and height of 2 millimeters. The triangle has a base of 2 millimeters an height of 2 millimeters. What error did Alice make? She didn’t use the correct formula for area of a triangle. She didn’t use the correct formula for area of a rectangle. She didn’t find the height of the triangle correctly. She didn’t add the areas of the triangle and rectangle correctly.
Answer:
She didn’t use the correct formula for area of a triangle.
Step-by-step explanation:
edg 2021 Sorry for the late answer.
suppose the length of the pool in Example 1 is
3 times the width. How does the function that
represents the combined area of the pool and
the deck change?
A triangle has angle measuring 40 and a right angle. what is the measurement of the triangle's third angle?
Answer:
50 degrees
Step-by-step explanation:
(HELP ILL GIVE BRAINLY IF YOU WANT! ITS A MULTIPLE CHOICE)
Answer:
2(x²-13)
Step-by-step explanation:
the expression above gives 2x²-26
when expanded we get 2(x²-13)
Hurry Please!!!!!
When a rectangle is cut diagonally, two congruent right triangles are formed. Which expression shows how to use the area of the rectangle to find the area of one of the right triangles?
What is the relationship between ratios and rates?
Answer:
The relation ship between ration and rates is they compare numbers
Step-by-step explanation:
Please give brainliest
Answer:
Ratio is comparing 2 things like apples to oranges and rates is how much is it like a percentage for example there is 4% oranges.
Step-by-step explanation:
On a coordinate plane, a square has points A (negative 5, 2), B (1, 2), C (negative 4, 1), and D (negative 5, negative 4). If a translation of is applied to square ABCD, what is the y-coordinate of B'?
Answer:
The y coordinates of B' is: 8
Step-by-step explanation:
Given
[tex]A = (-5,2)[/tex]
[tex]B =(1,2)[/tex]
[tex]C = (-4,1)[/tex]
[tex]D = (-5,-4)[/tex]
Translation of (x, y) → (x + 6, y – 10) ---Missing from the question
Required
Determine the y coordinates of B'
We have:
(x, y) → (x + 6, y – 10)
And
[tex]B =(1,2)[/tex]
So the translation from B to B' is:
[tex]B (1,2) \to B'(1+6,2-10)[/tex]
[tex]B (1,2) \to B'(7,-8)[/tex]
So, we have:
[tex]B' = (7,-8)[/tex]
The y coordinates of B' is: 8
Answer:
-2
Step-by-step explanation:
Solve each system of equation Y=x+12 y=-18
Which of the equations below has no solution?
A circle is centered at M(0,0)M(0,0)M, left parenthesis, 0, comma, 0, right parenthesis. The point B(-4,\sqrt{5})B(−4, 5)B, left parenthesis, minus, 4, comma, square root of, 5, end square root, right parenthesis is on the circle.
Where does the point A(5,-1)A(5,−1)A, left parenthesis, 5, comma, minus, 1, right parenthesis lie?
PLSSS HELPPP. PLS SEND PIC OR TYPE THE ANSWER. IT IS ON KHAN ACADEMY AS WELL
Answer:
outside
Step-by-step explanation:
desmos
Answer:
C, outside
Step-by-step explanation:
In circle O, the length of radius OL is 6 cm and the length of arc LM is 6.3 cm. The measure of angle MON is 75°
Answer:
14.2cm
Step-by-step explanation:
Complete question:
In circle O, the length of radius OL is 6 cm and the length of arc LM is 6.3 cm. The measure of angle MON is 75°.
Rounded to the nearest tenth of a centimeter, what is the length of arc LMN?
Find the diagram attached
arc LN= arc LM + arc MN
First we need to get the arc MN
length of an arc = theta/360 * 2πr
length of arc MN = 75/360 * 2(3.14)(6)
length of arc MN = 0.20833*37.68
length of arc MN = 7.85
Hence;
arc LN = 6.3 + 7.85
arc LN = 14.15cm
Hence the length of arc LN is 14.2cm