Answer:
I think the answer is D. 22%
Answer:
b is correct
Step-by-step explanation:
A watermelon that weighs 9 pounds costs $4.50.
What is the price per pound?
Answer:
0.5 cents per pound.
4.50/9 = 0.5
Please mark me brainliest! I hope this helps!
The area of a rectangle is represented by the expression 2x2 + 10x + 12. Daniel is convinced that the dimensions of this rectangle could be (2x + 4) and (x + 3) or (x + 2) and (2x + 6). Do you agree or disagree with Daniel? Use words to justify your opinion.
Answer:
I agree with daniel
Step-by-step explanation:
Given the area of a rectangle expressed as;
A(x) = 2x²+10x+12
On factorizing;
A(x) = 2x²+6x+4x+12
A(x) = 2x(x+3)+4(x+3)
A(x) = (x+3)(2x+4)
since A(x) = l(x)w(x)
Hence the legnth and width of the rectangle are 2x+4 and x+3.
Also A(x) = 2x²+6x+4x+12 can be factorized as;
A(x) = 2x²+4x+6x+12
A(x) = 2x(x+2) + 6(x+2)
A(x) = 2x+6(x+2)
Therefore I agree with Daniel. The factor differs due to the difference in arrangement of 4x and 6x in the expression. Precedence of values affects the final factors
Fill in the missing number.
30% of __ =27
9514 1404 393
Answer:
90
Step-by-step explanation:
The number that goes in the blank is x, where ...
0.30x = 27
Dividing by 0.30, we find ...
x = 27/0.30 = 90
Then ...
30% of 90 = 27
hii! please help asap. i’ll give brainliest
Answer: 4
Step-by-step explanation: Arrange them in number order and cross one off on the left then the right to find the middle value which should be 4
the mean of 4 8 9 x and 2x is 6 calculate the value of x
Answer:
x = 3
Step-by-step explanation:
Mathematically, the mean is the sum of the numbers divided by the count of the numbers
The count of the numbers is 5
Thus;
( 4 + 8 + 9 + x + 2x)/5 = 6
(21 + 3x)/5 = 6
21 + 3x = 6(5)
21 + 3x = 30
3x = 30-21
3x = 9
x = 9/3
x = 3
I need the answer to this ASAP
Answer:
x = 37
Step-by-step explanation:
These 2 angles are equal to each other because they're vertical angles:
2x = 74
2/2x = 74/2
x = 37
Answer:
The answer is 53
Step-by-step explanation:
74+2x=180
2x=180-74
X=106/2
=53 answer
Plz Mark it as brainliest answer
What is an equation of the form a b = c d b a = d c stating that two ratios are equivalent?
Answer:
true proportion
A true proportion is an equation that states that two ratios are equal. If you know one ratio in a proportion, you can use that information to find values in the other equivalent ratio.
hope it helps ya.
Can you give me brainliest? please?.ت︎
As a first step in solving the system shown, Yumiko multiplies both sides of the equation 2x – 3y = 12 by 6. By what factor should she multiply both sides of the other equation so that she can add the equations and eliminate a variable?
5x + 6y = 18
2x – 3y = 12
Answer:
3
Step-by-step explanation:
First, we can start by multiplying the equation 2x - 3y = 12 by six to see where that gets us,
2x - 3y = 12 --> 12x - 18y = 72
12x - 18y = 72
5x + 6y = 18 (other equation)
We can notice that eliminating the y term would be the easiest to go about, so we want to find the number that we can multiply 6 by to get 18. That number is 3, so the factor is 3.
You can use the fact that non of 2 times 6 doesn't include 5 as factor.
There are two possible values of the factor by which if Yumiko multiplies the first equation and add the equations, a variable is eliminated.
Those values of the factor are [tex]3[/tex] (for elimination of y) or [tex]-\dfrac{12}{5}[/tex] (for elimination of x)
How to find by what factor should we multiply the equations to eliminate a variable in a system of linear equations of two or more variables?Our aim in doing so is to make the coefficients of same variable equal and with opposite signs so that when we add the equations, that variable gets eliminated because of coefficient becoming zero.
For example, take the given equations and the factor by which Yumiko multiplied the second equation.
5x + 6y = 18
2x – 3y = 12 => 12x - 18y = 72 (since she multiplied this with 6)
Let she multiply the first equation with factor "p"
Then we will have the system as;
[tex]p \times 5x + p \times 6y = p \times 18\\12x - 18y = 72[/tex]
Adding both the equations, we get:
[tex](5p + 12)x + (6p - 18)y = 18p + 72[/tex]
Since there are two variables and since any one of them can be eliminated depending on the value of p, thus we have two cases:
Case 1: Eliminated variable is xThen we have coefficient of x = 0
or
[tex]5p + 12 = 0\\5p = -12\\p = -\dfrac{12}{5}\\[/tex]
Case 2: Eliminated variable is yThen we have coefficient of y = 0
or
[tex]6p - 18 = 0\\6p = 18\\p = \dfrac{18}{6} = 3[/tex]
Thus, there are two possible values of the factor by which if Yumiko multiplies the first equation and add the equations, a variable is eliminated.
Those values of the factor are [tex]3[/tex] or [tex]-\dfrac{12}{5}[/tex]
Learn more about system of linear equations here:
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need some help with question 20
Answer:
l = 420 cm
Step-by-step explanation:
20.
Central angle = 60°
The radius of circle, r = 7 cm
We need to find the length of the arc. We can find it as follows :
[tex]l=r\times \theta\\\\l=7\times 60\\\\l=420\ cm[/tex]
So, the length of the arc is equal to 420 cm.
Are 4(a - 3) and 4a - 7 equivalent expressions?
Answer:
Yes
Step-by-step explanation:
Given expression: 3x+9
Take 3 outside from the expression, we get,
= 3(x+3), which is called the equivalent expression
Answer:
No
Step-by-step
We have to multiply the 4 by both the a and the 3 since there a parenthesis around them. This would of course be distributive property. Since you don't know what a is, it would just be 4a and since we can multiply 4 and 3 that would be 12. So, 4(a - 3) is equivalent to 4a - 12.
This figure is made up of two rectangular prisms what is the volume of the figure.
Answer:
10x3=30 6x12x19=1368 1368+30=1398
If you don't know the answer please don't "act" smart and put random things like links...
But if you do please Help, I'll mark as brainliest
It's physics, right?
A. will have box 2.
B. will have box 1
C. will have box 3
Answer:
Part A will be the 2nd line
Part B will be the 1st line
Part C will be the 5th line
*note* I don't know if these lines move as you move them so I getting these answers as if they do not move.
Step-by-step explanation:
Let's start with part A.
It says he rides quickly. This means that as the distance increases, the time will increase slower.
So we are looking for a steep line. The steepest lines are line 2, 3 and 4
We know it can not be the 4th line because these line shows that time is no longer moving, just the distance.
Since it is impossible to freeze time, line 4 does not make any sense. So let's look at line 2 and 3
This can be confusing because it says down hill. So you may think it is line 3. When Cole goes down the hill, he is getting further from home. This means the line has to go up.
So that means part A has to be line 2.
Now let's start with part B
When graphing distance and time, if someone stops, their line stops moving in one direction too.
If you stop moving, you are not gaining any distance but time still moves.
This means we are looking for a line that moves in only 1 direction. These lines are lines 1 and 4.
On line 1, only time is moving
On line 4, only distance is moving
So like I said before, it is impossible to move while time is not moving. So line 4 makes no sense again. Leaving us with line 1.
So part B is line 1
Now we will do part C
It says that Cole rides slowly.
This means the line will not be steep. He is also still moving so it can not be line 1.
So we have line 5 and 6.
Since he is still moving away from the house, the line has to go up in distance and time. So this eliminates line 6
This leaves us with line 5
So the answer to part C is line 5
Hope this helps and have a great day!
The radius of a circle is 6 kilometers. What is the circle's area?
r=6 km
Use 3.14 for .
square kilometers
Answer:
113.04 km²
Step-by-step explanation:
Formula - Area = πr²
= 3.14 * 6²
= 113.04 km²
Please do it step by step!
9514 1404 393
Answer:
80 in^3
Step-by-step explanation:
The volume of a pyramid is given by the formula ...
V = 1/3Bh
where B is the area of the base, and h is the height of the pyramid. Here, h=8 in.
__
Here, the base is a triangle. The formula for its area is ...
A = 1/2bh
where b is the base segment of the triangle, and h is the height of the triangle perpendicular to the base segment. Here, b=10 in, and h = 6 in.
The triangular base area is ...
A = 1/2(10 in)(6 in) = 30 in^2 . . . . base area "B"
__
Using the above base area and pyramid height, we find the volume of the pyramid is ...
V = 1/3(30 in^2)(8 in) = 80 in^3
The volume of the pyramid is 80 cubic inches.
There are (2^4)^2⋅ 2^0 books in a cupboard. What is the total number of books in the cupboard?
2^2
2^6
2^8
2^16
Factor 16x+40y I don't know how to do this
Answer:
8(2x + 5y)
Step-by-step explanation:
You cant fact (take out) 8 from both 16 and 40 since 8 is a factor for both.
Step-by-step explanation:
=16x+40y
=8(2x+5y)
stay safe healthy and happy.If 8 boxes of cereal cost $27.60, what is the price of one box?
Answer:
$3.45
Step-by-step explanation:
Let "x" repreesnt the cost of one box. If 8 = 27.60, 1 = "x". Set up a fraction, then solve;
[tex]\frac{8}{27.6}=\frac{1}{x}[/tex]
Step 1: Divide 27.6 by 8
[tex]27.60 \div 8 = 3.45[/tex]
Step 2: Multiply the result by 1
[tex]3.45 \times 1 = 3.45[/tex]
That means 1 cereal box costs 3.45 dollars.
Confused on both any help for either?
Answer:
y = 5/4 x + 9
y = -5x+4
Step-by-step explanation:
a)The equation of the line in slope intercept form is expressed as y = mx+b
m is the slope
b is the intercept
Given
Slope m = 5/4
y-intercpet = 9
Substitute
y = mx+b
y = 5/4 x + 9
b) Given the coordinates (0,4) and (2, -6)
Slope m = -6-4/2-0
m = -10/2
m = -5
Since the y intercept of the line is (0, 4), hence b = 4
Get the equation
Recall
y = mx+b
y = -5x +4
This gives the required equation
Please help !!! Number 11
Answer:
C) 153.9 in²
Step-by-step explanation:
14 ÷ 2 = 7
π = 3.14
3.14×7×7 = 153.9 in²
hope this helps!
Answer:
answer should be 154 but 153.9 in sq is the closest.
we have to find the area right?
Round-Off 12579,18375 To The Nearest 10
Answer:
12579 nearest ten = 12580
18375 nearest ten = 18370
(please explain clearly, I am very tired) Find the surface area of the composite figure.
Answer:
644
Step-by-step explanation:
SA=[2×(5×20 + 5×6 + 20×6)] +
[2×(4×12 + 4×6 + 12×6)] -
[ 2× 12×6]
= [2×(250)]+[2×(144)] - [144]
= 500+288-144
= 644 cm²
hey! please help i’ll give brainliest! if it lets me:)
Answer:
the answer is A
Step-by-step explanation: golf balls are lighter than bowling balls.
Answer:
first answer is correct answer
Please help me!! Please!
Answer:
Step-by-step explanation:
The first answer choice is correct i ma 100% sure
Answer:
(-1.2,0.3)
Step-by-step explanation:
does this help you
which equivalent form of g(x)=2x^2-12x-54 is the best form to find the zeros of the function?
a) g(x)=2(x-3)^2-72
b) g(x)=2(x^2-6x-27)
c) g(x)=2(x-9)(x-3)
d) g(x)=2x^2-18x+6x-54
Answer:
g(x)=2(x-9)(x+3)
Step-by-step explanation:
1) I am a 5 digit number 2) The digit in the hundreds place is a 3 3) The largest place value place is the ten thousands place 4) The digit in the tens place is one less than the digit in the hundreds place 5) The largest one-digit odd number is in the thousands place 6) The digit in the ten thousands place is greater than 0 but less than 2 7) When you add the digit in the tens place and the digit in the hundreds place, it equals the digit in the ones place
Answer:
19325
Step-by-step explanation:
not one hundred percent sure about the thousands place, but everything else is correct.
1) 5 digit number - 19325 is a 5 digit number
2) 19325 - 3 is in the hundreds place
3) Largest place value is 10000
4) 3 - 1 = 2 - tens place equals 2
5) LARGEST one-digit odd number in the thousands place - 19325
6) 0<x<2 - 19325 is less than 2, greater than 0
7) 3 + 2 = 5 - ones place equals 5
Please mark brainliest!
money is invested in a saving account at 12% simple interest.after one year there is $1680 in the account. how much was originally invested?
Step-by-step explanation:
check the pic. I just sent
the answer is $1500
The originally invested price will be;
⇒ $1,500
What is mean by Percentage?A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.
Given that;
Money is invested in a saving account at 12% simple interest.
And, After one year there is $1680 in the account.
Now,
Let the original invested amount = x
So, We can formulate;
⇒ x + 12% of x = 1680
⇒ x + 12x/100 = 1680
⇒ 112x = 1680 × 100
⇒ 112x = 1,68,000
⇒ x = 1,68,000/112
⇒ x = $1,500
Thus, The original invested amount = $1,500
Learn more about the percent visit:
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Nate jumped 26 inches. Maria jumped 32 inches. How much farther did Maria jump than Nate?
Answer:
6 Inches
Step-by-step explanation:
Subtract 26 from 32.
This reduction was drawn at a scale of 1 inch scaled to 4 feet actual. What is the actual height of the giraffe?
Answer:
5 inches tall i think
Step-by-step explanation:
sorry if its wrong
Can anyone help me please
Answer:
A, E
Step-by-step explanation:
The mean of the pizza truck:
(400 + 800 + 1000 + 1000)/4 = 800
The mean of the burger truck:
(800 + 700 + 900 + 800)/4 = 800
A is correct, which voids answer C
The median of the pizza truck:
400, 800, 1000, 1000
\ /
900
The median of the burger truck
700, 800, 800, 900
800
900>800 so E is correct, voiding all other answers
Increase 20g by 10%
Answer:
22g ..................m