Do the ratios 3 8 and 4 7 form a proportion?
The ratios 3:8 and 4:7 are not proportion. You can tell this easily by how in the second ratio, the first number is one larger, but the second number is 1 lower. If this was proportional, then both numbers would go either up or down depending on the circumstance.
May I have brainliest pleasER? :)
The formula for the area of a trapezold with altitude k and bases m and n is A=k/2(m+n)
Solve for m.
Answer:
[tex]m=\frac{2A-kn}{k}[/tex]
Hence, option C is true.
Step-by-step explanation:
Given the expression
[tex]A=\frac{k}{2}\left(m+n\right)[/tex]
Solving for 'm'
[tex]A=\frac{k}{2}\left(m+n\right)[/tex]
Flip the equation
[tex]\frac{k}{2}\left(m+n\right)=A[/tex]
Expanding by applying the distributive law: [tex]a\left(b+c\right)=ab+ac[/tex]
[tex]\frac{1}{2}km+\frac{1}{2}kn=A[/tex]
Add (-1)/2 × kn to both sides
[tex]\frac{1}{2}km+\frac{1}{2}kn+\left(-\frac{1}{2}kn\right)=\left(-\frac{1}{2}kn\right)+A[/tex]
simplify
[tex]\frac{1}{2}km=-\frac{1}{2}kn+A[/tex]
Divide both sides by k/2
[tex]\frac{\frac{1}{2}km}{\frac{k}{2}}=\frac{-\frac{1}{2}kn+A}{\frac{k}{2}}[/tex]
[tex]m=\frac{2A-kn}{k}[/tex]
Therefore,
[tex]m=\frac{2A-kn}{k}[/tex]
Hence, option C is true.
can I please have some help
Step-by-step explanation:
6.-3
8.-36
10.11
make it braintliest please
Answer:
6) q = -3
8) d = -4
10) y = 10
Step-by-step explanation:
6) -7q = 21
divide by -7 on both sides
q = -3
8) -1/3d = 12
divide both sides by -1/3
d = -4
10) -88 = -8y
divide both sides by -8
10 = y
or
y = 10
Sales Tax
Selling Price Rate of Sales Tax Sales Tax
$50.00
4%
?
The sales tax is $
Answer:
2.00
Step-by-step explanation:
$50 x .04=$2.00
find the constant of proportionality (r) in the equation y=rx
Answer:
5
Step-by-step explanation:
The constant of proportionality (r) in the equation y=rx is 3
How to determine the constant of proportionality?The equation of the function is given as:
y = rx
Make r the subject
r = y/x
From the table, we have:
y = 36 when x = 12
So, the equation becomes
r = 36/12
Divide
r = 3
Hence, the constant of proportionality (r) in the equation y=rx is 3
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Calvin evaluated Negative two-thirds times 5 and one-sixth using the steps below.
Step 1: Negative two-thirds time (5 + one-sixth)
Step 2: (Negative two-thirds + 5) times (Negative two-thirds + one-sixth)
Step 3: 4 and one-third times negative one-half
Step 4: Negative 2 and one-sixth
Which describes Calvin’s error?
In step 1, he incorrectly broke up 5 and one-sixth.
In step 2, he distributed the Negative two-thirds instead of the 5.
Answer:
The answer is C on Edge 2021
Step-by-step explanation:
In step 2 he confused the multiplication and addition signs
Answer:
C
Step-by-step explanation:
got it right
Plzzzzzz help meeeeeee
Answer:
-10
Step-by-step explanation:
hope it helps
Answer:
blue point value is -10
Step-by-step explanation:
First lets find the difference between each point on the line,
The gap between 10 and 2 has 2 points
So 10 - 2 = 8 is the difference in value between point A(10) and point C(2), but we need to find difference between each point,
So 8/2 = 4 is the difference between each point from top to bottom.
There is 3 points after 2 to reach blue,
So 4 x 3 = 12, is the difference in value between point C(2) and point blue,
So, subtracting 12 from 2 will get us the value of blue, 2 - 12 = -10
Therefore the value of blue point is -10
Happy to help :)
CLEAR HIGHLIGHTING
COLOR THEME
ZOO
6. Ricky rolls a fair six-sided number cube, numbered 1 through 6, if he rolls the
dice 18 times. How many times should Ricky expect to roll an even number
The measures of two sides of a triangle are given {17x-7} and {3x^2+5}. The perimeter of the triangle is 13x^2-14x+12. Find the measures of the third side.
CAN SOMEONE PLZ HELP
Answer:
C. 7*7*7*7*7
Step-by-step explanation:
7^5 is multiplying 7 5 times
James wants to buy a new cell phone package there are three packages available for each offering a different deal which package offers the best deal
Answer:package 3
Step-by-step explanation:
Hope I am right it is there cheapest
I help me help me help me help me help help help help help me help me help me help me
Answer:
a would be 2/9 and b would b 1/4 and c would be 0.17
Step-by-step explanation:
Hi it's Mia! '^' Give the other person brainliest, They worked hard to get the answer you needed! Have a wonderful day! :)
Write as a power of 10. How did you do it? a) 100 b) 10 000 c) 100 000 d) 10 e) 1000 f) 1 000 000
Answer: ↓↓↓
Step-by-step explanation:
a.) 100 - 10^2
b.) 10,000 - 10^4
c.) 100,000 - 10^5
d.) 10 - 10^1
e.) 1000 - 10^3
f.) 1,000,000 - 10^6
What I do personally is that I count the number of zeros in the number and that is how many powers the ten powers to. Like a, there are two zeros in 100 so its 10 to the power of 2.
Hooke’s Law of Elasticity states that the force applied, y, varies directly with the distance a spring stretches, x (assuming the spring is not stretched past its elastic limit). If a force of 160 newtons stretches a spring 800 cm, how far will a force of 368 newtons stretch the same spring? Justify your answer.
Group of answer choices
F. It will stretch the same spring 73.6 cm because the equation is y equals 5x.
G. It will stretch the same spring 73.6 cm because the equation is y equals one fifth x..
H. It will stretch the same spring 1,840 cm because the equation is y equals 5x.
J. It will stretch the same spring 1,840 cm because the equation is y equals one fifth x..
Answer:
H: It will stretch the same spring 1,840 cm because the equation is y equals 5x.
Step-by-step explanation:
800=y
160and368=x
You find the answer by dividing,
⁸⁰⁰⁄₁₆₀= ʸ⁄₃₆₈800 divided by 160 equals 5 which means the equation is y equals 5x
and 368x5=1,840
also, do you go to college park?
maya joins two peices of wood together one peice is 36 inches long the total lenght of both peices is 62 how long is the other peice of wood
help ;-;...
Answer: 26
Step-by-step explanation:
62-36=26
Answer: 26
You simply have to subtract 36 from 62
Anna is making a square pen for her rabbit to play in. Each
side of the pen is 9 feet long.
The formula for the area of a square is A = 52, where A
stands for the area and s is the length of one side.
What is the area of the pen?
A. 9 square feet
B. 36 square feet
C. 18 square feet
D. 81 square feet
Answer:
[tex]area \: A = {s}^{2} \\ = {9}^{2} \\ A \: = 81 \: square \: feet \\ or \\ A = 81 \: {ft}^{2} [/tex]
Rationalize the denominator and simplify. √a+1 - 2 / √a+1 + 2
Answer:
5+a-4√a+1 / a-3
The rationalization of given expression is a+5-4√(a+1)/(a+5).
What is Rationalization?Rationalization can be considered as the process used to eliminate a radical or an imaginary number from the denominator of an algebraic fraction. That is, remove the radicals in a fraction so that the denominator only contains a rational number.
The given expression is √(a+1)-2/√(a+1)+2.
Multiply both numerator and denominator by (a+1)-2, we get
√(a+1)-2×(a+1)-2/√(a+1)+2×(a+1)-2
= (√(a+1)-2)²/(√(a+1))²+2²
= (√(a+1))²-2×√(a+1)×2+2²/a+1+4
= a+1-4√(a+1)+4/(a+5)
= a+5-4√(a+1)/(a+5)
Therefore, the rationalization of given expression is a+5-4√(a+1)/(a+5).
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A rectangular swimming pool is 28 feet wide. Jason drew the pool at the scale below. 1 inch : 4 feet How many inches wide is Jason's drawing?
F. 4 inches
G. 7 inches
H. 14 inches
J. 21 inches
___% of 25 = 15
Pls help-
Answer: 60%
Step-by-step explanation: i hope it helps.
Answer:
60%
Step-by-step explanation:
Joe is 3 years less than twice as old as Sara. The sum of the ages of Joe and Sara is 42. If x represents Sara's age,
Answer:
Sara or x=15, Joe=27
Step-by-step explanation:
Using J to represent Joe and S to represent Sara
J=2S-3
J+S=42 or J=42-S
Substitute for J:
42-S=2S-3
3S=45
S=15
J=2(15)-3 = 27
Liam bought 6 4/5 pounds of steak. He used 3 1/18 pound of stake for a cookout
Answer:
3.74
Step-by-step explanation:
bought can be as subtract
So...
6 4/5 - 3 1/18 = 3.74 THXS! (>-<)
What is 2 x 2 x 2 x 2 x 2 x 2 x 2 is exponet form
Answer:
2^7
Step-by-step explanation:
Answer:
2^7
Step-by-step explanation:
2 to the 7th power because there are 7 2s in the whole equation
Also, 2*2*2*2*2*2*2 is 128, which is 2^7
Which of the following represents the solution to the equation 4x - 2 = 10?
Answer:
the top option
Step-by-step explanation:
solve 4x - 2 = 10 and you get
4x = 12
x = 3
this means there is only one solution and only 3 should be filled in
17 - 4x = 33
What does X=?
Answer:
x = -4
Step-by-step explanation:
17 - 4x = 33
Subtract 17 from each side
17-17 - 4x = 33-17
-4x = 16
Divide each side by -4
-4x/-4 =16/-4
x = -4
In a room of 33 students, 12 are taking geogra-
phy, 14 are taking history, and 5 are taking both
geography and history. How many of these
students are not taking either geography or
history?
Answer:
2
Step-by-step explanation:
all of those equal 31
Answer:
31
Step-by-step explanation:
HELP HELP HELP NO ONE HELPS ME
k ( n ) = | n + 1 | − 1 ; Find k ( 4 )
Answer:
4
Step-by-step explanation:
-6k+7k
So I'm not sure that it's k because I need to simplify? Can someone help me
Answer:
k
Step-by-step explanation:
its just k, since 1k can be simplified to just k
Which list of fractions is in order from smallest to largest? 1/6,1/3 ,1/2 ,1/2 ,1/3 ,1/6 ,1/6 ,1/2 ,1/3, 1/2, 1/6, 1/3
Answer:
The smallest order of fractions in that order would be,
Step-by-step explanation:
1/6, 1/3, 1/2
because the bigger the denominater, the larger the whole is, and in 1/2, it would be equivalent to half, but 1/6 would be smaller. Let's say if it were 3/6, it would be equivalent to 1/2 because its half right? so thats another way you can tell how one fraction is smaller than another.
1/6,1/3,1/2 is the list of fractions is in order from smallest to largest.
What is Fraction?A fraction represents a part of a whole.
The given three fractions are 1/6, 1/3 and 1/2.
We need to order them smallest to largest.
Let us make the denominator same for all the three fractions to compare which is larger and smaller.
1/6×2/2=2/12
1/3×4/4=4/12
1/2×6/6=6/12
So 1/6 is smaller, 1/2 is bigger.
We know Arranging numbers in increasing order, that is, from smallest to largest is known as ascending order.
by using ascending order we can order the fractions like 1/6,1/3,1/2.
Hence, 1/6,1/3,1/2 is the list of fractions is in order from smallest to largest.
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✧･ﾟ:Multiple Choice:･ﾟ✧
What is the slope of the line in the graph below?
A. -2
B. -1
C. 1
D. 2
° ♡ ₒ ♡ °
Thank you!
Answer:
-2
Step-by-step explanation:
slope is rise over run
-2/1
= -2
Answer:
-2
Step-by-step explanation:
Slope is rise over run -2/1