Find the unknown
*
7.8-2.15
Answers
Related Questions
A group of 3 boys is sharing 4 small pans of rice krispie treats. What is the total amount of rice krispie treats each boy will get?
Answers
Answer:
each boy will get 1.33333333333 of a pan
Step-by-step explanation:
Answer:
Each boy in that group would get about 1 and 1 third of a pan of treats or 1.33 repeating
Step-by-step explanation:
To find this you would take the numbers of pans (4) and divide it by the number of boys (3).
4 / 3 = 1.33333
Gavin & Henry share a lottery win of £8800 in the ratio 4 : 1.
Gavin then shares his part between himself, his wife & their son in the ratio 1 : 6 : 3.
How much more does his wife get over their son?
Answers
Answer:
around £500
Step-by-step explanation:
plss give brailiest
how do I know how many extraneous solutions there is
Answers
Answer:
how do u know how many extraneous solutions there is?
Step-by-step explanation:
To find whether your solutions are extraneous or not, you need to plug each of them back in to your given equation and see if they work. It's a very annoying process sometimes, but if employed properly can save you much grief on tests or quizzes.
Answer: To find whether your solutions are extraneous or not, you need to plug each of them back in to your given equation and see if they work. It's a very annoying process sometimes, but if employed properly can save you much grief on tests or quizzes
Step-by-step explanation:
Please can I have brainliest I need one more to rank up
Math Math Math Math help help help
Answers
Answer: 5a: 5/8
Step-by-step explanation: sorry, thats the only one i can read `:)
Answer:
3a is 8 3b is 6
Step-by-step explanation:
this might be right sorry if it isnt I was straining my eyes till I got a headache
what are you guys studying?
Answers
Answer:
im study about history it was my favourite subject!
Drag and drop the constant of proportionality into the box to match the table. If the table is not proportional, drag and drop "not proportional" into the box. Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse. x 0 3 6 9 y 0 2 4 6
Answers
The constant of proportionality in the box to match the table will be 2/3. Then the last option is correct.
What are ratio and proportion?A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.
The table is given below.
x y
0 0
3 2
6 4
9 6
The variable 'y' is directly proportional to the variable 'x'. Then we have
y ∝ x
y = k x
At (9, 6), the value of the constant 'k' is given as,
6 = 9k
k = 6 / 9
k = 2/3
The proportionality is given as,
y = (2/3) x
The constant of proportionality in the box to match the table will be 2/3. Then the last option is correct.
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Raise the quantity in parentheses to the indicated exponent, and simply the resulting expression with positive exponents.
(−4−24)−2
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The expression \((-4-24)-2\) when simplified is \(-30\)
What is simplification of expressionSimplification of an expression means to rewrite or transform the expression into an equivalent form that is simpler or more concise, without changing its meaning or value.
In mathematics, expressions can often be simplified by combining like terms, using the distributive property, factoring, canceling out common factors or terms, and other algebraic techniques.
The simplification of the expression given is:
\(-30\)
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Find the value of x.
Answers
Answer:
x = 106 degrees
Step-by-step explanation:
x + 104 + 40 + 110 = 360
x + 254 (No more 254)
- 254 (Again no more 254)
x = 106
Step by step.
Using supplementary angle theory I was able to find three of the interior angles. The 4th interior angle was found by subtracting the three known angles from 360, finding the 4th angle is 74.
So again we use supplementary angle to find the value of x.
180 - 74 = 106
2x + y = 17
-4x = 2y - 34
is it no solution
Answers
Answer:
(0,8.5)
Step-by-step explanation:
Change 2x+y=17 to 4x+2y=34
Cancel it out with -4x=2y - 34
It would be 4y=0
Transfer it to the first or second equation 2x+0=17
x=17/2 or 8.5
what is the value of x??
please help!!
Answers
The total number of students enrolled in MATH 123 this semester is 6,072. If it decreases by 0.22% for the next semester, what will be the enrollment next semester?
Answers
About 6,018
the made me do letters
Given: Line segment AC and line segment BD intersect at O.
Prove: ZAOB ZCOD
Since line segment AC and line segment BD intersect at O, ZAOB is supplementary to ZBOC and ZBOC is supplementary to
ZCOD by the linear pair theorem.
Which statement and reason best completes the proof?
ZCOD.
ZCOD.
By the congruent supplements theorem, ZAOB
By the substitution property of equality, ZAOB
By the congruent complements theorem, ZAOBZCOD.
By the subtraction property of equality, ZAOB ZCOD.
Answers
By the substitution property of equality, ∠AOB ≅ ∠COD. Then the correct option is B.
What is an angle?The inclination is the separation seen between planes or vectors that meet. Degrees are another way to indicate the slope. For a full rotation, the angle is 360°.
Supplementary angle - Two angles are said to be supplementary angles if their sum is 180 degrees.
Given: Line segment AC and line segment BD intersect at O.
Prove: ∠AOB ≅ ∠COD
By the supplementary angles property, the equations are given as,
∠AOB + ∠BOC = 180° .....1
∠BOC + ∠COD = 180° ....2
By the substitution property of equality, ∠AOB ≅ ∠COD. Then the correct option is B.
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Answer: By the congruent complements theorem
Step-by-step explanation: I took the test
9 - 5k = 12 - (6k + 7)
help
Answers
Answer:
k = 10
Step-by-step explanation:
9 - 5k = 12 - (6k + 7)
open the parenthesis
9 - 5k = 12 - 6k - 7
add 6k to both sides of the equation
9 - 5k + 6k = 12 - 6k - 7 + 6k
combine like terms
9 + k = 19
subtract 9 from both sides of the equation
9 + k - 9 = 19 - 9
k = 10
Select the correct answer.
If no denominator equals zero, which expression is equivalent to 15/x-6 + 7/x+6?
A.
OB.
OC.
OD.
22 +132
²36
22-48
236
22
C.36
22 +48
²36
Answers
The expression in the options which is equivalent to the given expression is D. (22x + 48) / (x² - 36).
Given expression is,
[15 / (x - 6)] + [7 / (x + 6)]
Cross multiplying the two fractional expressions,
= [15 (x + 6) + 7 (x - 6)] / [(x - 6) (x + 6)]
= [15x + 90 + 7x - 42] / [x² - 6²]
= (22x + 48) / (x² - 36)
Hence the equivalent expression is D.
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there's a 100 dollar stuck up 12 feet up a building and you buy a 15 foot ladder that can be safely leaned at a 60 degree angle, can you reach the bill?
Answers
Answer choices
8
7
6
5
Answers
______________
state the domain of the relation ? ( there is more than one?) select all that apply
Answers
Answer:
I think it's {3, 6, 12, 18}
Step-by-step explanation:
Domain: all x-values that are to be used (independent values).
Who know the answer to this?
Answers
Answer: A (w=2a+3)
Step-by-step explanation: The answer is A because for every week after the tiger is born it gains 2 pounds. that's the w=2a part. The +3 is there because the tiger started with 3 pounds.
Help me I need to finish this today
Answers
Answer:
24 glasses
Step-by-step explanation:
1/8 x 24= 3
What is the value of (2/3)^4 ?
Answers
Answer:
THE ANSWER IS 81/16 OR C
slope43passes through (-5, -6)
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hello
the question here request we find the equation of a straight line with a given slope passing through different points
step 1
find the intercept
to do this, we need to use the standard equation of a straight line to find that
\(\begin{gathered} y=mx+c \\ m=slope \\ c=\text{intercept} \end{gathered}\)\(\begin{gathered} \text{slope}=\frac{4}{3} \\ \text{ points= (-5 , -6)} \end{gathered}\)x = -5 y = -6
\(\begin{gathered} y=mx+c \\ -6=\frac{4}{3}(-6)+c \\ -6=-8+c \\ c=-6+8 \\ c=2 \end{gathered}\)step 2
write out the equation using the intercept and slope
\(\begin{gathered} y=mx+c \\ y=\frac{4}{3}x+2 \end{gathered}\)Please look at the picture and answer the question thank you
Answers
Answer:
-2x^2+5y^3+
Step-by-step explanation:
THIS IS DUE IN 1 HOUR I WILL MARK BRAINLIEST
Jack has 24 game cards. He divides them between his brother, his sister, and himself in the ratio 2:1:5. How many cards does each get?
THERE IS 15 POINT WAITING FOR YOU
Answers
Answer:
brother gets 6 cards
sister gets 3 cards
he gets 15 cards
Answer:
8
Step-by-step explanation:
What is the area, in square meters, of the trapezoid below?
Answers
this is split into three shapes
the middle is a rectangle
5.8 x 9.5 = 55.1
find width of left triangle
18 - 9.5 = 8.5
area of triangle is 1/2 base x height
8.5 x 5.8 / 2 = 24.65
5.1 x 5.8 /2 = 14.79
add all 3
99.47 is total area
Hope this helps : -)
- Jeron
CAN SOMEONE HELP WITH THIS QUESTION?✨
Answers
The percentage error in the density of metal will be 3.4%.
What is the percentage?The percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.
Given that the density of the metal in the handbook is 4.018 g/mL and the measured value of the density is 4.16 g/mL.
The percentage error will be calculated as:-
Percentage = [ ( 4.16 - 4.018 ) / 4.16 ] x 100
Percentage = 0.034x 100
Percentage = 3.4%
Hence, the percentage error will be 3.4% for the densities.
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Change each set of fractions to have the lowest common denominator
23. 2/3, 3/5 and 1/2
24. 5/9, 1/3 and 5/6
Answers
Answer:
23. 20/30, 18/30, and 15/30
24. 10/18, 6/18, and 15/18
Step-by-step explanation:
A plane flying with a constant speed of 360 km/h passes over a ground radar station at an altitude of 1 km and climbs at an angle of 30°. At what rate (in km/h) is the distance from the plane to the radar station increasing a minute later? (Round your answer to the nearest whole number.)
Answers
The rate (in km/h) at which the distance from the plane to the radar station is increasing a minute later is 0 km/h (rounded to the nearest whole number).
To solve this problem, we can use the concepts of trigonometry and related rates.
Let's denote the distance from the plane to the radar station as D(t), where t represents time. We want to find the rate at which D is changing with respect to time (dD/dt) one minute later.
Given:
The plane is flying with a constant speed of 360 km/h.
The plane passes over the radar station at an altitude of 1 km.
The plane is climbing at an angle of 30°.
We can visualize the situation as a right triangle, with the ground radar station at one vertex, the plane at another vertex, and the distance between them (D) as the hypotenuse. The altitude of the plane forms a vertical side, and the horizontal distance between the plane and the radar station forms the other side.
We can use the trigonometric relationship of sine to relate the altitude, angle, and hypotenuse:
sin(30°) = 1/D.
To find dD/dt, we can differentiate both sides of this equation with respect to time:
cos(30°) * d(30°)/dt = -1/D^2 * dD/dt.
Since the plane is flying with a constant speed, the rate of change of the angle (d(30°)/dt) is zero. Thus, the equation simplifies to:
cos(30°) * 0 = -1/D^2 * dD/dt.
We can substitute the known values:
cos(30°) = √3/2,
D = 1 km.
Therefore, we have:
√3/2 * 0 = -1/(1^2) * dD/dt.
Simplifying further:
0 = -1 * dD/dt.
This implies that the rate at which the distance from the plane to the radar station is changing is zero. In other words, the distance remains constant.
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What can be done to the graph of y=2x2+3 to obtain the graph of y=−2x2+3?
Answers
Answer:
Reflect over the x-axis.
Step-by-step explanation:
Assuming you meant 2x^2+3, putting a negative sign in front of the x value flips the graph over the x-axis.
Sketch a plane region and indicate the axis about which it is revolved so that the resulting solid of revoltuion (found using the shell method) is given by the integral.
π
2π∫ xsinx dx
0
Answers
Answer:
See attached picture.
Step-by-step explanation:
The idea of the shell method is to find the volume of a differential shell by using the formula:
\(V=2\pi\int\limits^a_b {rh} \, dr\)
in the drawing we can see that r=x, h=sin x and dr=dx. The area is revolving about the y-axis from x=0 to \(x=\pi\). So the volume is found by using the following integral:
\(V=2\pi\int\limits^\pi_0 {xsin x} \, dx \)
From the set {1, 12, 17}, use substitution to determine which value of x makes the equation true. 36x + 31 = 535 A. 12 B. none of these C. 1 D. 17
ANWSER FAST!!!
Answers
The value of x in the equation is B) None of these.
What is equation?
The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.
Here the given equation is 36x+31=535
Now substitute x=1 then,
=> 36(1)+31=535
=> 36+31=535
=> 67 ≠ 535
Now substitute x = 12 then
=> 36(12)+31=535
=> 432+31 = 535
=> 463 ≠ 535
Now substitute x= 17 then
=> 36(17)+31=535
=> 612+31 = 535
=> 643 ≠ 535.
Hence the correct option is B) None of these.
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