Answer:
[tex]a) \: \: e = 11 \: \: and \: \: f = 7 \\ \\ \frac{e + 5}{4f - 4} \\ \\ \frac{11 + 5}{4(7) - 4} \\ \\ \frac{16}{28 - 4} \\ \\ \frac{16}{24} \\ \\ \frac{2}{3} \\ 0.666 \: \: \: ans \: \\ \\ \\ b) \: \: e = - 1 \: \: and \: \: f = - 4 \\ \\ \frac{e + 5}{4f - 4} \\ \\ \frac{ - 1 + 5}{4( - 4) - 4} \\ \\ \frac{ - 1 + 5}{ - 16 - 4} \\ \\ \frac{4}{ - 20} \\ \\ - \frac{1}{5} \\ - 0.2 \: \: ans \: \: [/tex]
Step-by-step explanation:
Solution:
a. when e = 11 and f = 7
[tex] \\ \: \: \frac{e + 5}{4f - 4} [/tex]
[tex] \\ = \frac{11 + 5}{4 \times 7 - 4} [/tex]
[tex] \\ = \frac{11 + 5}{28 - 4} [/tex]
[tex] \\ = \frac{16}{24} [/tex]
[tex] \\ = { \cancel \frac{16}{{24}}}[/tex]
[tex] \\ = \frac{2}{3} [/tex]
b. when e = -1 and f = -4
[tex] \\ \: \frac{e + 5}{4f - 4} [/tex]
[tex] \\ = \frac{{ - 1 + 5} }{4( - 4) - 4} [/tex]
[tex] \\ = \frac{ - 1 + 5}{ - 16 - 4} [/tex]
[tex] \\ = \frac{4}{ - 20} [/tex]
[tex] \\ = { \cancel\frac{4}{ - 20}} [/tex]
[tex] \\ = \frac{ - 1}{5} [/tex]
I need help understanding this
Answer:
i got 1.28
Step-by-step explanation:
Answer:
128 questions
Step-by-step explanation:
75%•x=96
[tex]\frac{75}{100}[/tex]•x=96
x=96•[tex]\frac{100}{75}[/tex]
x=128
Elliot has a total of 26 books. He has 12 more fiction books than nonfiction books. Let x represent the number of fiction books and y represent the number of nonfiction books.
The system of equations models the total costs for each.
x + y = 26
x – y = 12
Elliot added the two equations and the result was
2x = 38.
Solve the equation. How many of each type of book does Elliot have?
fiction books
nonfiction books
Answer:
Step-by-step explanation:
As 2x -38
x-19
now.
putting value in eq 1
X-Y-12
thus,19-Y =12
Y=7
Fiction books=X=19
Help Me please i need it right now
with Complete answer Like
What is asked?
What are given?
What operation should be used?
What is the number sentence?
Show your solution
Answer:
1.
what is asked? how far did she walk to the church?
what are given?
- the total distance from her house to the church: [tex]\frac{3}{4}km[/tex]
- the distance she rode to the church on a tricycle: [tex]\frac{1}{8} km[/tex]
what operation should be used? subtraction
what is the number sentence?
[tex]\frac{3}{4} -\frac{1}{8}=\frac{5}{8} km[/tex]
solution: [tex]\frac{5}{8} km[/tex]
2.
what is asked? how much cake did they eat in total?
what are given?
- amount Catherine ate: [tex]\frac{1}{3}[/tex]
- amount Bernard ate: [tex]\frac{3}{8}[/tex]
what operation should be used? addition
what is the number sequence? [tex]\frac{1}{3} +\frac{3}{8}=\frac{17}{24}[/tex]
solution: [tex]\frac{17}{24}[/tex] of the cake was eaten
3.
what is asked? how many kg of ground meat was left?
what is given?
- the total amount of meat there was at the beginning: [tex]10\frac{4}{5}[/tex]kg
- amount of meat used:[tex]3\frac{2}{3}kg[/tex]
what operation should be used? subtraction
what is the number sentence? [tex]10\frac{4}{5} -3\frac{2}{3} =7\frac{2}{15} kg[/tex]
solution: [tex]7\frac{2}{15}kg[/tex] of meat was left
4.
what is asked? how far did she travel from home to school?
what is given?
- how far Jasmine travels by bus: [tex]6\frac{3}{8} km[/tex]
- how far she travels by tricycle: [tex]5\frac{2}{5} km[/tex]
what operation should be used? addition
what is the number sentence? [tex]6\frac{3}{8}+5\frac{2}{5} =11\frac{31}{40} km[/tex]
solution: [tex]11\frac{31}{40}km[/tex] traveled
5.
what is asked? how many meters of cloth were used?
what is given?
- amount of cloth used for pants:[tex]2\frac{3}{4} m[/tex]
- amount of cloth used for a skirt: [tex]1\frac{9}{10} m[/tex]
what operation should be used? addition
what is the number sentence? [tex]2\frac{3}{4}+1\frac{9}{10} =4\frac{13}{20} meters[/tex]
solution: [tex]4\frac{13}{20} meters[/tex] of cloth was used
*I wasn't sure how detailed the number sentence should be, like if work needed to be shown, so here is the image of the work
I don't know how to do this...
Write an equation for a parabola with x-intercepts (-4,0) and (2,0) which passes through the point (1,-10).
Answer:
y=2x^2+4x−16
Step-by-step explanation:
Assume that the equation of the parabola is y=ax2+bx+c.
Since the parabola passes through the point (−4,0), then 0=16a−4b+c.
Since the parabola passes through the point (2,0), then 0=4a+2b+c.
Since the parabola passes through the point (1,−10), then −10=a+b+c. Thus, we have obtained the following system:
{16a−4b+c=0; 4a+2b+c=0; a+b+c=−10Solving it, we get that a=2, b=4, c=−16. Thus, the equation of the parabola is y=2x^2+4x−16.
The equation of a parabola is y = -x² + x + 4 with x-intercepts at (-4,0) and (2,0) that passes through the point (1,-10).
What is the equation for a parabola?A parabola can be represented by the equation:
y = ax² + bx + c
To find the equation of a parabola that has x-intercepts at (-4,0) and (2,0), we can set y equal to 0 and solve for x to find the x-intercepts:
0 = a(-4)² + b(-4) + c
0 = a(2)² + b(2) + c
Solving these equations for a and c gives us:
c = b(-4)
c = -2b
The parabola passes through the point (1,-10), we can substitute the values of x and y into the equation to solve for b:
-10 = a(1)² + b(1) + (-2b)
-10 = a + b - 2b
-10 = a - b
Substituting c = b(-4) into the equation gives us:
y = a x² + b x + b(-4)
Substituting a = -b and solving for b gives us:
y = (-b) x² + b x + b(-4)
y = -b(x² - x - 4)
Since the x-intercepts are at (-4,0) and (2,0), the coefficient of x², which is -b, must be positive. Therefore, we can set b = 1 to get the equation of the parabola:
y = -(1)(x² - x - 4)
y = -x² + x + 4
Thus, the equation of a parabola is y = -x² + x + 4.
Learn more about the parabola here:
brainly.com/question/4074088
#SPJ2
Geometry please help ASAP
Answer:
D) 22
Step-by-step explanation:
B is the midpoint. The midpoint is the point in a line that breaks the line into two equal segments. With that info, we know that BC = AC.
So that means:
3x - 14 = x + 10
Now solve this equation.
3x - 14 = x + 10
+14. +14
3x = x + 24
-x
2x = 24
/2. /2
X = 12.
Now we know the value of x, insert the value into x + 10.
12 + 10 = 22
The answer is 22
Answer:
B) 12
Step-by-step explanation:
Because,
3x - 14 = x + 10
3x - x = 10 + 14
2x = 24
x = 12
The Empire State Building has 102 stories. The building was created at a rate of 4 1/2 stories per week. How many weeks did it take to complete the building?
Answer:
22.6
Step-by-step explanation:
102÷4 1/2=22.6
You can double check this by multiplying 22.6 with 4 1/2, which will give you the answer without it being rounded.
What is the y-intercept of the function, represented by the table of values
below?
O A. 5
O B. 3
O c. 10
O D. 6
A cube has edge length 11 inches. Just type the number of the answer.
What is the volume?
cubic inches
What is the surface area?
square inches
Volume of a cube = l³
= (11 in)³
= 1331 in³
Surface area of cube = 6a²
= 6 (11 in)²
= 726 in²
PLEASE HELP 30 POINTS URGENT
Answer:
uehen7hedhdsundoidnxkxhnixhdjdjndkxjdnkxjdd
Simplify the expression to a polynomial in standard form (x-3)(2x²-5x-5)
[tex] = 2 {x}^{2} - - 11 {x}^{2} + 10x + 15[/tex]
hope it helps
Find A + B. Help me please.
Answer:
D.
therefore,A+B is equal to D
Estimate 0.03415 to the nearest hundredth. Express your answer as a single digit times a power of ten
Answer:
3 raise to power -100
Step-by-step explanation:
If you like my answer than please mark me brainliest thanks
3x – 3 + 5x = 4(2x – 3).
-9 that is the answer
Answer:
3x - 3 + 5x = 4(2x -3)
collect like terms
3x + 5x - 3 = 8x - 12
8x -3 = 8x - 12
8x -8x = 3 - 12
it's null
the expression is an indefinite one
What is 1,00000000000000000000000000 x 2,00000000000005567898765434567899876543456787654
Answer:
2
Step-by-step explanation:
caulculator
A 3m wide road runs around a circular park whose circumference is 132m . Find the cost of fencing the outer boundary of the road at the rate of $10 per m
Answer:
$ 1508.57 and please give brainliest
Step-by-step explanation:
The road around the park = 3 m wide,
and the circumference of the park = 132 m,
We have to find the cost of fencing
the outer boundary,
the rate = $10 per m
Step-by-step explanation:
As we know that the circumference
of a circle = 2 × 22÷7 × radius
2 × 22÷7 × radius = 132 m,
44 × radius = 132 m × 7,
44 × radius = 924 m,
radius = 924 ÷ 44 m
So, radius = 21 m ( smaller circle )
radius = 21 m + 3 m ( larger circle )
= 24 m
Usually, we fence on the borders means it's
the circumference of the larger circle
= 2 × 22÷7 × radius
= 44÷7 × 24 m
= 1056÷7 m
= 150.85 m
cost of fencing = $ 10/m
total cost = 150.85 × $ 10
= $ 1508.57
A binary operation is defined p*q=3p-q Evaluate 1*(2*3)
A man walks 10 miles In xhours. How far does he walk in one hour?
Answer:
10
Step-by-step explanation:
Answer:
if he is walking 10 miles then in 10 hours
Step-by-step explanation:
every 1 mile is 1 hour meaning every 10 miles is every 10 hours
What is the slope of a line perpendicular to the line whose equation is 2x−10y=100. Fully reduce your answer.
Answer:
2x-10y=100
-8xy=100
xy=12
Christine can type 63 words in 9 minutes. What is her rate in words per minute?
Answer:
7 words per minute
Step-by-step explanation:
63 words = 9 mins
9 mins = 63 words
1 min = 63 words/9
1 min = 7
She can type 7 words per minute
-Chetan K
Answer:
7 words per minute
Step-by-step explanation:
1. To find the unit rate (words per minutes), let's set up two ratios:
63:9 = x:1 or 63/9 = x/12. Now, let's solve for x to find how many words she can type per minute.
Step 1: Cross-multiply.
[tex]9 * x = 63 * 1[/tex] [tex]9x = 63[/tex]Step 2: Divide both sides by 9.
[tex]\frac{9x}{9} = \frac{63}{9}[/tex] [tex]x = 7[/tex]Therefore, Christine can type 7 words per minute.
What graph represents number 17? (y - in; tercept = 1; t=1;slope= 1 2)
Answer:
The answer to this question is graph B
Answer:
Yeah he/she correct I did that too and got it right
Step-by-step explanation:
Tara looks up hotel room prices for a holiday.
A hotel has a 25% off sale on its prices.
A VAT charge of 20% must be added on at the end of the transaction after any discount.
If the regular price of a room is £80 per night, how much will Tara pay for 7 nights?
what will be the square root of 47089
Answer:
217
hope that helped <3
Please answer this math problem... I will mark you brainliest
Answer:
( 5, 3 )
Step-by-step explanation:
I imagine you plug in the given ordered pair to the rule:
( x - 3, y + 9 )
( 2 - 3, 12 + 9 ) ( - is the same as going to the right, so it basically adds ).
( + is the same as going to the right, so it basically subtracts ).
( 5, 3 )
Hopefully this helped!
Brainliest please?
I don't understand this question can someone help me with this please, please explain!! and thank you for the help!! If u dont know try your best :D
Answer:
A) 23+x = 35
x = 12
Step-by-step explanation:
The question is asking you to find the equation and variable that best represents the scenario. We know that Emily had 35 dollars and had 7 dollars after paying for everything. This means that 7 plus what she spent must equal 35. However, we only know the cost of the ticket. So, add the cost of the ticket to the money left to figure out part of the equation. This equals 23 dollars. Therefore, whatever is left must be what she spent on lunch. So, the equation should look like 23 + x = 35. This is because the $23 is the ticket/the amount left and the x is the cost of lunch. Together they equal what Emily brought to the fair.
Evalueate-2/5-x(-9/10) where x= 4/5
Answer:
i think 8/25
Step-by-step explanation:
Answer:
-2 1/10
Step-by-step explanation:
What are the values of s and t?
Answer:
S=45°
t=90°
Step-by-step explanation:
Y=Z=45
t=180-(45×2)=90
Sophia works in a clothing store and earns $40 per day. She earns an extra $5 for each outfit
she sells. If Sophia wants to earn at least $70 per day, which inequality shows the minimum
number of outfits, n, that she should sell?
Answer:
6 outfits
Step-by-step explanation:
6 x 5 = $30 + $40 = $70
Please answer all/as many as possible. Please number the answers!
Answer:
the answer for 8) answer= 8
the sum of three numbers is 20
the first is 4 times the sum of the other two
the second is seven times the third
what is the product of all three
Answer:
A*B*C= 28
Step-by-step explanation:
A+B+C=20
1. A = 4(B+C)
2. B = 7C
3. C = C
----------------------
1.
A = 4( 7C + C )
A=4(8C)
A= 32C
---------------------
A+B+C=20
32C + 7C + C = 20
40C = 20
C = 20/40
C = 1/2
------------------------
A= 32(1/2) = 32/2 = 16
B= 7(1/2) = 7/2
C= 1/2
A*B*C = 16 * 7/2 * 1/2
A*B*C= 28
please someone help me asap i will give brainliest to correct answer!
Answer:
C
Step-by-step explanation:
it's c because this is a false statement, which means that the original statement is also a false one
so it doesn't have any answer