Answer:
Need more information.
Step-by-step explanation:
Please can I have the workings too
Answer:
Step-by-step explanation:
Answer:
[tex]\frac{3-2a}{a^2}[/tex]
Step-by-step explanation:
Before we can subtract the fractions we require them to have a common denominator.
Multiply the numerator/ denominator of [tex]\frac{2}{a}[/tex] by a , then
[tex]\frac{3}{a^2}[/tex] - [tex]\frac{2a}{a^2}[/tex] ← with common denominator a²
Add numerators leaving the denominator
= [tex]\frac{3-2a}{a^2}[/tex]
Tyrone has 16 model airplanes on his shelf. He has 4 times as many model airplanes as model trains. How many model trains does Tyrone have?
Write multiplication and division equations to model and solve the problem. Use m for the unknown
Step-by-step explanation:
4m = 16
divide both sides by 4
m = 4
he has 4 model trains
please help me on this will give you brainliest
Answer:
1.41 x 10 to the 7th power
Step-by-step explanation:
3 x 10 to the fifth is 300000
300000 x 47 = 14100000 in 47 seconds
14100000 = 1.41 x 10 to the 7th power
Hope that helps!
Answer:
1.41*10^7 or 14,100,000
Step-by-step explanation:
3*10^5*47=1.41*10^7
Is one-half of a square smaller than one-quarter of the same square? How do you know?
Answer:
No
Step-by-step explanation:
one-half is bigger than one-quarter of the same square
HELP HELP HELP We can think of 8 ÷ 2 as the answer to the question “How many groups of 2 are in 8?” What is the answer to the question? *
PLS HELP. In the triangle ABC, BP is the medium from the vertex B. If AC= 25 units and CR= 4.5 units, find PR. PLS HELP
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Answer:
PR = 8
Step-by-step explanation:
The median bisects the side opposite the vertex, so ...
P is the midpoint of AC
Since AC = 25, the length of half that segment is PC = 12.5. Of course, that is the sum of segments PR and RC:
PR + RC + PC
PR + 4.5 = 12.5 . . . . . fill in the known values
PR = 8 . . . . . . . . . . . . .subtract 4.5
I need an explanation for the problem 4v2=-12v-9. I don't understand why it factors into 4v+3 and 4v+3
Answer:
The factors are [tex]2v+3,2v+3[/tex].
The factors are not [tex]4v+3,4v+3[/tex]
Step-by-step explanation:
Equation is [tex]4v^2=-12v-9[/tex].
This equation can be written as follows:
[tex]4v^2+12v+9=0[/tex]
Here,
[tex]12v=6v+6v[/tex]
Therefore,
[tex]4v^2+6v+6v+9=0\\2v(2v+3)+3(2v+3)=0\\(2v+3)(2v+3)=0[/tex]
So, the factors are [tex]2v+3,2v+3[/tex].
The factors are not [tex]4v+3,4v+3[/tex]
PLS PLS HELP ASAP I WILL MARK BRAINLIEST
Using the given equation find the missing coordinates of the points and then find the slope of the line for the equation.
y=3.5x+4; A(...;5), B(10;...)
Okay so,
A (0.2875; 5), B (10; 39)
THE SLOPE IS 3.5
Select all of the following that are true. *
sinA=18/30
sinA=3/5
cosA=10/6
cosA=8/10
cosA=5/3
tanF=24/18
tanF=3/4
tanD=3/4
sinD=18/30
Answer:
Step-by-step explanation:
sin A = [tex]\frac{BC}{AC}[/tex] = [tex]\frac{6}{10}[/tex] = [tex]\frac{3}{5}[/tex]
cos A = [tex]\frac{AB}{AC}[/tex] = [tex]\frac{8}{10}[/tex] = [tex]\frac{4}{5}[/tex]
tan F = [tex]\frac{DE}{FE}[/tex] = [tex]\frac{24}{18}[/tex] = [tex]\frac{4}{3}[/tex]
tan D = [tex]\frac{FE}{DE}[/tex] = [tex]\frac{18}{24}[/tex] = [tex]\frac{3}{4}[/tex]
sin D = [tex]\frac{FE}{FD}[/tex] = [tex]\frac{18}{30}[/tex] = [tex]\frac{3}{5}[/tex]
please help, I really don't get this
Answer:
-8, -8
Step-by-step explanation:
If you add the equations, you get -7x + 4x + 4y - 4y = 24. Canceling out the 4y and the -4y, and adding 4x to -7x, you get -3x = 24. Divide both sides by -3 and you get x = -8. Next, pick an equation and substitute x for -8. I am going to use the first equation. (-7)-8 + 4y = 24 is equal to 56 + 4y = 24. Subtract 56 from both sides to get 4y is equal to -32, and if you divide both sides by 4, you get y = -8.
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Answer:
(-8, -8)
Step-by-step explanation:
We notice that the coefficients of y are +4 and -4, so have a sum of zero. This means we can add the two equations to eliminate the y-terms.
(-7x +4y) +(4x -4y) = (24) +(0)
-3x = 24 . . . . . . . . . simplify
x = -8 . . . . . . . . . . . divide both sides by -3
Now, we can find y using either equation.
4(-8) -4y = 0
-8 -y = 0 . . . . . . . . divide both sides by 4
-8 = y . . . . . . . . . . add y to both sides
The solution to the system of equations is ...
(x, y) = (-8, -8)
Solve: 3c-c when c=9
Answer:
18
Step-by-step explanation:
give brainlyest???????
Answer:
18
Step-by-step explanation:
3*9-9
3*9=27
27-9=18
Hope this helpsss :)
Please help it is due today
i think answer is 8in2
please talk me my answer is correct or not
Answer:
8 inches squared
Step-by-step explanation:
4 3/4 of a cube + 4 1/4 of a cube + 4 whole cubes
4 + 4 = 8
0.25 (771-20q) simplified expression
Answer:
191.5
Step-by-step explanation:
Answer:
191.5
Step-by-step explanation:
i really need help ASAP, its due on midnight
Answer:
a. s=94 b. s=8w+54 c. w=14
Step-by-step explanation:
I posted a picture how I got this answer
Hope this helped
You bought 3/4 pound of fudge for 6.75. Write and solve an equation to find the cost of the fudge per pound.
Given:
You bought [tex]\dfrac{3}{4}[/tex] pound of fudge for 6.75.
To find:
The equation and solve the equation to find the cost of the fudge per pound.
Solution:
Let x be the cost of the fudge per pound.
You bought [tex]\dfrac{3}{4}[/tex] pound of fudge for 6.75.
[tex]\dfrac{3}{4}x=6.75[/tex]
[tex]3x=6.75\times 4[/tex]
[tex]3x=27[/tex]
Divide both sides by 3.
[tex]x=\dfrac{27}{3}[/tex]
[tex]x=9[/tex]
Therefore, the required equation is [tex]\dfrac{3}{4}x=6.75[/tex] and the cost of the fudge is 9 per pound.
1. Determine which of the following ordered pairs
are solutions to each of the given systems of
inequalities.
[(5,3). (-2, 1), (1.2). (2. -3), (3, 5), (-2,3), (2, 0)]
a. y<-x+3
y>x-2
Sarah’s parents purchased a refrigerator for $320. If sales tax is 7% of the cost, how much tax did Sarah’s parents pay for the refrigerator
Answer:
22.4
Step-by-step explanation:
7% of the cost is 22.4
Answer:
$22.40
Step-by-step explanation:
Let's convert the 7% sales tax into a decimal, which should be 0.07Multiply the sales tax (as a decimal) by the cost of the refrigerator ($320). You should get $22.40Edit: Read something wrong, I fixed it, sorry.
How many solutions does this linear system of equations have?
x – 3y = 5
-3x + 9y = -7
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Answer:
zero
Step-by-step explanation:
Dividing the second equation by -3, it becomes ...
x -3y = 7/3
Compared to the first equation, ...
x -3y = 5
we see that it is inconsistent. No values of the variables can satisfy both equations. There are no solutions.
please help me with this problem
Answer:
vitamin c is the independent variable
Step-by-step explanation:
the amount of vitaman c dose not change but the amount of oranges eaten can change
The length of a driveway is 18 yards what is it in feet?
Answer:
Step-by-step explanation:
18yd(3ft/yd)=54ft
Answer:
Hello! :) have a good day!
54 feet
U estimate that there are 40 marbles in a jar the actual amount is 48 marbles find the percent error round to the nearest 10th of a percent
Answer: 10.7%
Step-by-step explanation:
The percentage error will be calculated as:
Estimated value - Actual value / Actual value × 100
= (40 - 48) / 48 × 100
= 8/48 × 100
= 1/6 × 100
= 10.7%
1, 3, 9, 27, ... What's the pattern rule and the next three numbers?
Answer:
multiply by three
Step-by-step explanation:
Step-by-step explanation:
1 x 3 = 3 x 3 = 9 x 3 = 27
=> Pattern rule = [tex]3^{n-1}[/tex]
=> The next three numbers = 81 , 243 , 729
state true or false :every natural number is a whole number
Answer:
true , because natural number is starte on no.1 to infinity but whole no. is started on 0 to infinity so it is true .
Step-by-step explanation:
Answer:
True
Step-by-step explanation:
The whole numbers are the numbers 0, 1, 2, 3, 4, and so on (the natural numbers and zero). Negative numbers are not considered "whole numbers." All natural numbers are whole numbers, but not all whole numbers are natural numbers since zero is a whole number but not a natural number.
Negative 8 times 2/3
Answer:
[tex]-\frac{16}{3}[/tex]
Step-by-step explanation:
This is simple multiplication. To make this easier to solve, let's modify the fraction so it looks like this:
[tex]-8*2*\frac{1}{3}[/tex]
You could also change it to this:
[tex]\frac{-8}{1}*\frac{2}{3}[/tex]
Do these look simpler? Hopefully they do!
Now, let's multiply the numerators. When multiplying fractions, we multiply numerators and denominators separately. Here, that means we could, taking both paths, do this:
[tex]\frac{1}{3}(-8*2)[/tex]
[tex]=\frac{1}{3} (-16)[/tex]
[tex]=\frac{-16}{3}[/tex]
[tex]=-\frac{16}{3}[/tex]
Or we can do this:
[tex]\frac{-8}{1} *\frac{2}{3}[/tex]
[tex]=\frac{-8*2}{1*3}[/tex]
[tex]=\frac{-16}{3}[/tex]
[tex]=-\frac{16}{3}[/tex]
But what if the denominator of one fraction has a common factor with the other number or the other fraction's numerator? We would find the common factor, and cancel it out to simplify. We could do this before multiplying, during the multiplication, or after multiplying.
In the case of a number times a fraction, it could also be seen as division, as fractions are essentially that: one number divided by another, except we aren't using the decimal.
I hope this helps you understand, so you don't need to ask this again! It's about 8:00 AM where I am as I'm writing this answer, so good morning and have a wonderful day!
The equivalent value of the fraction is A = -16/3
Given data ,
Let the equation be represented as A
Now , the value of A is
Let the first fraction be represented as p
Let the second number be represented as q
Now , A = pq
when the value of p = 2/3
And , when the value of q = -8
On simplifying the equation , we get
A = ( 2/3 ) / ( -8 )
So , the left hand side of the equation is equated to the right hand side by the value of ( 2/3 ) / ( -8 )
A = ( 2/3 ) / ( -8 )
A = ( -8 x 2 ) / ( 3 )
On simplifying , we get
Multiply by -8 on the fraction , we get
A = ( -8 x 2 ) / 3
A = -16/3
Therefore , the value of A = -16/3
Hence , the fraction is A = -16/3
To learn more about fractions click :
https://brainly.com/question/29766013
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Which pair of numbers has a sum of 100?
( A) 39,61
(B) 49,61
(C) 59, 51
(D) 39,51
Answer:
a
Step-by-step explanation:
39+61 is the only pair that make 100.
Jean needs 2 gallons of olive oil to make a recipe. If the olive oil 8:00 a quart how much money will she need to buy the olive oil
Answer:
$64
Step-by-step explanation:
Given that :
Required amount of olive oil = 2 gallons
Cost per quartz = $8
Recall:
1 quartz = 0.25 gallons
Amount of quartz in 2 gallons :
2 / 0.25 = 8 quartz
Cost of olive oil needed :
8 quartz * $8
= $64
If x= 1/3 is one of the solutions of an equation then what is the factor that gave us this solution
Answer:
3x - 1 = 0
Step-by-step explanation:
If x = 1/3
multiply both sides by 3
3 * x = 1/3 * 3
3x = 1
Subtract 1 from both sides ;
3x - 1 = 1 - 1
3x - 1 = 0 ( the factor which gives the solution)
3x - 1 = 0
3x = 1
Doavide both sides by 3
3x / 3 = 1/3
x = 1/ 3
please help! how do you do this question?
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Answer:
(0.75, -1)
Step-by-step explanation:
The center of the circle is at the midpoint of any diameter segment. The midpoint formula can be used.
C = (A +B)/2
C = ((-1, 1) +(2.5, -3))/2 . . . . fill in A and B
C = (-1+2.5, 1-3)/2 . . . . . . . add the coordinates
C = (1.5, -2)/2 . . . . . . finish the addition; next, divide by 2
C = (0.75, -1) . . . . . . the center of the circle
Whoever get this right, gets a free hamster
Answer:
it's C
Step-by-step explanation:
pink or purple hamster plz :D
omg paint strips, that's the way to go
solve for x: 3(x + 1) = −2(x − 1) + 6.
Answer:
x=1
Step-by-step explanation:
3(x+1)=-2(x-1)+6
3x+3=-2x+2+6
3x+2x=2+6-3
5x=8-3
5x=5
x=[tex]\frac{5}{5}[/tex]
x=1
