Answer: the answer is 3 mph/second
Step-by-step explanation:
Wat is the rate of change for this equation?
3x -2y = 6
Answer:
rate of change (slope)=3/2
Step-by-step explanation:
3x-2y=6
-2y=-3x+6
y=3/2x-3
A 4% peroxide solution is mixed with a 10% peroxide solution, resulting in 100 L of an 8% solution. The table shows the amount of each solution used in the mixture.
A table titled Peroxide Solution, showing Liters of Solution, Peroxide Concentration and Total. The first row shows 4 percent Peroxide, with 100 minus s, 0.04, and x. The second row shows, 10 percent Peroxide, with, s, 0.10, and y. The third row shows Mixture, and has 100, 0.08, ans z.
What is the value of z in the table?
6
7
8
9
Answer:
0.05 or you can say 5%.
Step-by-step explanation:
on Edge
What is the GCF of 12x and 28x^3
Answer:
4x........................................
( will give Brainliest and 91 points please helppp)
Answer:
s = 6/7 yd
Step-by-step explanation:
Area of a square = side times side. Since each side of a square is the same, it can simply be the length of one side squared.
The area of any quadrilateral can be determined by multiplying the length of its base by its height. Since we know the shape here is square, we know that all sides are of equal length. From this we can work backwards by taking the square root of the area to find the length of one side.
Use divisibility rules to determine whether the number is divisible by 2, 3, 4, 5, 6, 8, 9, and 10.
1. 1200
2. 1515
3. 1071
Answer:
Divisibility Rules: 2, 3, 4, 5, 6, 9, and 10
A number aa is divisible by the number bb if a \div ba÷b has a remainder of zero (00). For example, 15 divided by 3 is exactly 5 which implies that its remainder is zero. We then say that 15 is divisible by 3.
In our other lesson, we discussed the divisibility rules for 7, 11, and 12. This time, we will cover the divisibility rules or tests for 2, 3, 4, 5, 6, 9, and 10. Believe me, you will be able to learn them very quickly because you may not know that you already have a basic and intuitive understanding of it. For instance, it is obvious that all even numbers are divisible by 2. That is pretty much the divisibility rule for 2. The goal of this divisibility rules lesson is to formalize what you already know.
3. 1071
Step-by-step explanation:
A number is divisible by 3 if the sum of its digits is divisible by 3. A number is divisible by 9 if the sum of its digits is divisible by 9. And a number is divisible by 6 if it is divisible by 2 (even number) and by 3.
Rewrite the following equation in standard form. y = 6x − 3
Step-by-step explanation:
Y
[tex]if \: y \: equals \: to \: 0 \\ 0 = 6x - 3 \\ 3 = 6x \\ \frac{1}{2} = x \\ sub \: value \: of \: x \: in \: irt \: equation \\ y = 6( \frac{1}{2} ) - 3 \\ y = 0[/tex]
quadratic equations
Please specify? I don't understand what the question is supposed to be.
Answer:
In algebra, a quadratic equation is any equation that can be rearranged in standard form as where x represents an unknown, and a, b, and c represent known numbers, where a ≠ 0. If a = 0, then the equation is linear, not quadratic, as there is no term.
Step-by-step explanation:
What is the average rate of change for the following graph over the interval 1 ≤ x ≤ 3?
Answer:
The average rate of change is 1 over 3, or just 1/3. The y-values change 1 unit every time the x-values change 3 units, on this interval!
We want to find the average rate of change of the graph on the interval 1 ≤ x ≤ 3.
The correct option is B: -4
We know that for a given function f(x) the average rate of change on the interval a ≤ x ≤ b is given by:
[tex]\frac{f(b) - f(a)}{b - a}[/tex]
Here we have the interval 1 ≤ x ≤ 3, and by looking at the graph we can see that:
f(3) = 1
f(1) = 9
Then the average rate of change is:
[tex]\frac{1 - 9}{3 - 1} = -4[/tex]
So the correct option is B.
If you want to learn more, you can read:
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Solve 2/3 divided by - 1 1/3
Answer:
-0.5
Step-by-step explanation:
Which expression is equivalent to (12x−5y−1)+(17y−4−13x−3y)?
which one is it?
1. −4x+12y−5
2. −x+9y−5
3. −x−25y+5
4. 25x−19y+3
The expression that is equivalent to the given expression is -x+9y−5. The correct option is 2. −x+9y−5
From the question,
We are to determine the expression which is equivalent to the given expression.
First, we will simplify the given expression
The given expression is (12x−5y−1)+(17y−4−13x−3y)
The expression can be simplified as shown below
(12x−5y−1)+(17y−4−13x−3y)
12x−5y−1+17y−4−13x−3y
Collect like terms
12x−13x+17y−5y−3y−4−1
This becomes
-x+9y−5
The simplified expression is -x+9y−5
Hence, the expression that is equivalent to the given expression is -x+9y−5. The correct option is 2. −x+9y−5
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Ms. Lee went and got a haircut for $55.00, and the tax was 7%. She also left a 30% gratuity for the hairdresser.
What are the three ways to determine if two triangles are similar
Answer:Similar triangles are easy to identify because you can apply three theorems specific to triangles. These three theorems, known as Angle - Angle (AA), Side - Angle - Side (SAS), and Side - Side - Side (SSS), are foolproof methods for determining similarity in triangles.
hope this helped! (if ya did a brainliest that would really help)
The three ways to determine if two triangles are similar are Angle - Angle (AA), Side - Angle - Side (SAS), and Side - Side - Side (SSS)
What are similar triangle?Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion.
Two triangles are similar if they meet one of the following criteria. : Two pairs of corresponding angles are equal. : Three pairs of corresponding sides are proportional. : Two pairs of corresponding sides are proportional and the corresponding angles between them are equal.
Also, Two triangles are similar if they have the same ratio of corresponding sides and equal pair of corresponding angles. If two or more figures have the same shape, but their sizes are different, then such objects are called similar figures.
The three theorems to identify similar triangles are, Angle - Angle (AA), Side - Angle - Side (SAS), and Side - Side - Side (SSS)
That explained as, two pairs of angles are congruent (AA) (2) two pairs of sides are proportional, and the included angles are congruent (SAS), or (3) if three pairs of sides are proportional (SSS).
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PLEASE HELP !!
what is the value of x ? what is the value of y?
Answer:
y=145°, x=35°
Step-by-step explanation:
y = 145° (vertically opposite angles)
x + y = 180°(linear pair)
x + 145° = 180°
x = 180° - 145°
x = 35°
hope you understood!
What is the equation of the line that is perpendicular to
the given line and passes through the point (5, 3)?
O 4r-5y=5
O 5x+4y= 37
4x+5y=5
5x - 4y=8
Answer:
the answer is the first one
Step-by-step explanation:
edg 2020
Answer:
A
Step-by-step explanation:
A family plants two trees.
Tree A is 2 feet tall and grows 16 inches per year.
Tree B is 4 feet tall and grows 8 inches per year.
Which equation represents the year, x, when the height of the trees are the same?
A
2x+43=4x+23
B
43x+2=23x+4
C
2x+16=4x+8
D
16x+2=8x+4
Answer:
D js hu sisngsizkabs s ah w
hello look at picture
Answer:
No
Step-by-step explanation:
if it is a function is to see if there are two of the same x-intercept (which make a vertical line). If there is, then it is NOT a function
Answer:
No it does not
Step-by-step explanation:
pls mark brainliest
Simplify -4x-3+6x-2 simplify
Answer:
2x-5
Step-by-step explanation:
Answer:
2x - 5
Step-by-step explanation:
combine like terms
-4x and + 6x = 2x
-3 and -2 = -5
2x - 5
To save water, a household decides to install one large and one smaller water tank. The smaller tank will hold 300 liters less than the
larger tank, and when the larger tank is 3/8 full, it will be able to completely fill the smaller tank.
Solve for m. the capacity of the smaller tank
Answer:
m = 180
Step-by-step explanation:
Solve using system of equations:
x = larger tank
m = smaller tank
x = m+300
m = 3/8x
4x^4-6x^2+5
help asappp
Answer:
220x+5
Step-by-step explanation:
Do I simplify? if yes, here's an explanation
4x^4 that means, 4x*4x*4x*4x, do 4*4*4*4=256,so the first part is 256x.
6x^2 that means, 6*6=36, 36x
Then do , 256x-36x+5=220x+5
That's your answer!
Hope this helps!
My brother need your help, it’s too hard for him,can you help him..????!!!!
Answer:
Slope: Ordered Pair: Slope Formala:
0 (0,0) and (1,0) (m = 0)
-2 (-2,-1) and (0,1) (m = -1)
1/2 (1,2) and (-4,12) (m = 9)
Im sorry i can't do the graph but i hope that help ❤️
4|3-2x|-1=47 in simplest form
Answer:
x = − 9 /2 , 15 /2
Step-by-step explanation:
A map key shows that 3cm represents 60 miles. Which proportion could be used to find m, the number of miles represented by 8 centimeters?
A: 3/60=m/8
B: 3/8=m/60
C: 3/5=60/m
D: 3/60=8/m
Answer:
D
Step-by-step explanation:
Solve.
3x + 21 = -33
a. -18
b. 18
c. -4
d. 4
Answer:
-18
Step-by-step explanation:
I just had this question and the answer is -18 because 3x+21-21=-31-21 to get - 18
Answer:
A). X = -18
Step-by-step explanation:
-18 times 3 + 21 is -33. When you have a hard time figuing out these sort of problems, I suggest you should get each choice that is given. Put one of these choices one at a time in the equation and see if it will equal -33. To do this, you put the number and substiture it for x. This is an easy way of solving this problem especially when it is multiple choice.
The length of a rectangle is three times the width. The perimeter of the rectangle
is 40 inches. What is the area of the rectangle (in square inches)
Answer:
The length of the rectangle: 3x
The width of the rectangle: x
Theres 2 lengths and 2 widths for every rectangle.
So the full perimeter is 3x+x+3x+x = 8x
8x;
= perimeter
= 40 inches
8x=40
x=40/8
x=5 inches
Length is 3x, substitute in for x
l = 3(5)
l = 15
Answer:29
Step-by-step explanation:
In a class of 25 pupils, 8 cannot swim. What percentage of the class can swim?
Answer:
12 i think im not exactly shore
Step-by-step explanation:
The questions are attached to here. Please help!
Answer:
Line D is the answer because the y-intercept is negative because it starts at -2 and the slope is one half because well its kinda obvious! May I have brainliest? Hope this helps:)
Step-by-step explanation:
Answer:
Line D
Step-by-step explanation:
has negative y intercept and has slope of 1/2
In the equation y= 2x + 7, the slope is 7.
True
False
Answer:
False I did this And the slope is 2
Match the angle pair?
Answer:
1) alt. interior
2) corresponding
3) alt. exterior
4) consecutive
Find the area of the shaded region (everything but the circles). Express your answer in terms of . Use pi to represent the symbol For example: would be typed as 32pi
Answer:
The area of the shaded region is (540 - 65.25pi) in²
Step-by-step explanation:
The remaining part of the question which is an image is attached below.
Step-by-step explanation:
To determine the area of the shaded region, that will be the difference between the area of the rectangle and the sum of the areas of the three circles.
First, we will determine the area of the rectangle, which is given by
Area of rectangle = Length × Breadth
In the figure, Breadth = 18 in
and Length = 12 in + 9 in + 6 in + 3 in
∴ Length = 30 in
Hence,
Area of rectangle = 30 in × 18 in
Area of rectangle = 540 in²
Now, we will determine the areas of the circles one after the other
For the smallest circle
From the figure, the diameter of the smallest circle is 6 in
From Radius = Diameter / 2
Hence,
Radius of the smallest circle = 6 in / 2 = 3 in
Area of a circle is given by
Area of circle = πr²
∴ For the smallest circle
Area of the smallest circle = π×3² = 9π in²
Hence, area of the smallest circle is 9pi in²
For the circle in the middle
Diameter of the circle in the middle is 9 in
∴ Radius of the circle in the middle = 9 in / 2 = 4.5 in
For the area of the circle in the middle
Area of the circle in the middle = π × 4.5² = 20.25π in²
Hence, Area of the circle in the middle is 20.25pi in²
For the largest circle
From the figure, the diameter of the largest circle is 12 in
Hence, radius of the largest circle = 12 in / 2 = 6 in
∴ For the largest circle
Area of the largest circle = π×6² = 36π in²
Hence, area of the largest circle is 36pi in²
Sum of the areas of the three circles = 9pi in² + 20.25pi in² + 36pi in²
Sum of the areas of the three circles = 65.25pi in²
Now,
Area of the shaded region = Area of the rectangle - Sum of the areas of the three circles
∴ Area of the shaded region = 540 in² - 65.25pi in²
Area of the shaded region = (540 - 65.25pi) in²
Hence, the area of the shaded region is (540 - 65.25pi) in²
Maria pays a yearly fee of $3 to her swimming club and $2
per lesson. Carmen pays a yearly fee of $5 and $2 per lesson.
After how many lessons will Maria and Carmen have paid the
same amount? Write an equation and explain your answer.
Answer:
They will have never paid the same amount
Step-by-step explanation:
the equation 3+2x=5+2x simplifies to 3=5 which is not a true statement
Carmen always pays a higher amount than Maria where the fee for each lesson is the same for both Carmen and Maria.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
We have,
Maria:
Yearly fee = $3
Fee per lesson = $2
Carmen:
Yearly fee = $5
Fee per lesson = $2
The equations to represent the amount A after x lesson:
Maria:
A = 3 + 2x
Carmen:
A = 5 + 2x
The number of lessons at which both have paid the same amount:
3 + 2x = 5 + 2x
0 = 2
There is no solution.
Thus,
Carmen always pays a higher amount than Maria where the fee for each lesson is the same for both Carmen and Maria.
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