Step-by-step explanation:
15% of 77:
77 x (15/100) =11.55
so to find the discount price:
77-11.55=65.45
discount price= $65.45
Which of these is a factor of 10?
A. 20
B. 2
C. 4
Answer:
B. 2
Hope this helps!
Step-by-step explanation:
The factors of 10 are 1, 2, 5, and 10. You can also look at this the other way around: if you can multiply two whole numbers to create a third number, those two numbers are factors of the third. 2 x 5 = 10, so 2 and 5 are factors of 10. 1 x 10 = 10, so 1 and 10 are also factors of 10.
Determine the vertex of the parabola y=5(x-2)2^-7
Answer:
Vertex: (−2,7)
Step-by-step explanation:
May I have brainliest please? :)
evalute the expression when a =-7 and y =3
-2y+a
Answer:
-13
Step-by-step explanation:
If a = -7 and y = 3, then all we have to do is plug in the given values to the expression we were given!
-2(3) + (-7)
-6 - 7
-13
Answer:
Step-by-step explanation:
-2(3)+-7
-6+(-7)
-13
Find the slopes between the following-
Help Help Help Help!
Answer:
A) -3/4
B) 1/4
Step-by-step explanation:
A) m = y2-y1 / x2-x1
B) rise / run
Hope this helps. Pls give brainliest.
MATHHHHH!!!! HELP ME OUTTT
Answer:a
Step-by-step explanation:hhehenndherndur
I would like you to help me please.
Reciprocal is reversing the given fraction.
1. Would be 8/3
2. 2 2/3 as in improper fraction is 8/3, reciprocal would be 3/8
3. -3/8 x 8/3 = -24/24 = -1
4. 3/8 / -8/3 =3/8 x -3/8 = -9/64
5. - 8/3 - -3/8 = -8/3 + 3/8 = -2 7/24
6. Only answer left: 2 7/24
Subtract - 5x ^ 2 + 10x - 1 from 6x ^ 2 - x + 3 .
Answer:
11x^2-11x+4
Step-by-step explanation:
(6x ^ 2 - x + 3)-( - 5x ^ 2 + 10x - 1 )
6x^2-x+3+5x^2-10x+1
11x^2-11x+4
So the answer is 11x^2-11x+4
9) A model airplane kit has a scale factor of 1/144. If the wingspan of the airplane is 1152 inches long, how long would the wingspan of the model airplane be? (Type just the number without the units)
Given:
Scale factor is [tex]\dfrac{1}{144}[/tex].
Length of wingspan of the airplane = 1152 inches
To find:
The length of wingspan of the model airplane.
Solution:
Scale factor is [tex]\dfrac{1}{144}[/tex]. It means,
1 inches of airplane [tex]=\dfrac{1}{144}[/tex] inches of model airplane.
1152 inches of airplane [tex]=1152\times \dfrac{1}{144}[/tex] inches of model airplane
[tex]=8[/tex] inches of model airplane
Therefore, the length of wingspan of the model airplane is 8 inches.
Once a commercial plane reaches the desired altitude, the pilot often travels at a cruising speed. On average, the cruising speed is 620 miles per hour. If a plane travels at this cruising speed for 8 hours, how far does the plane travel while cruising at this speed?
Answer:
4960 miles
Step-by-step explanation:
need help with my homework
Answer:
[tex]\displaystyle y=\frac{16-9x^3}{2x^3 - 3}[/tex]
[tex]\displaystyle y=-\frac{56}{13}[/tex]
Step-by-step explanation:
Equation Solving
We are given the equation:
[tex]\displaystyle x=\sqrt[3]{\frac{3y+16}{2y+9}}[/tex]
i)
To make y as a subject, we need to isolate y, that is, leaving it alone in the left side of the equation, and an expression with no y's to the right side.
We have to make it in steps like follows.
Cube both sides:
[tex]\displaystyle x^3=\left(\sqrt[3]{\frac{3y+16}{2y+9}}\right)^3[/tex]
Simplify the radical with the cube:
[tex]\displaystyle x^3=\frac{3y+16}{2y+9}[/tex]
Multiply by 2y+9
[tex]\displaystyle x^3(2y+9)=\frac{3y+16}{2y+9}(2y+9)[/tex]
Simplify:
[tex]\displaystyle x^3(2y+9)=3y+16[/tex]
Operate the parentheses:
[tex]\displaystyle x^3(2y)+x^3(9)=3y+16[/tex]
[tex]\displaystyle 2x^3y+9x^3=3y+16[/tex]
Subtract 3y and [tex]9x^3[/tex]:
[tex]\displaystyle 2x^3y - 3y=16-9x^3[/tex]
Factor y out of the left side:
[tex]\displaystyle y(2x^3 - 3)=16-9x^3[/tex]
Divide by [tex]2x^3 - 3[/tex]:
[tex]\mathbf{\displaystyle y=\frac{16-9x^3}{2x^3 - 3}}[/tex]
ii) To find y when x=2, substitute:
[tex]\displaystyle y=\frac{16-9\cdot 2^3}{2\cdot 2^3 - 3}[/tex]
[tex]\displaystyle y=\frac{16-9\cdot 8}{2\cdot 8 - 3}[/tex]
[tex]\displaystyle y=\frac{16-72}{16- 3}[/tex]
[tex]\displaystyle y=\frac{-56}{13}[/tex]
[tex]\mathbf{\displaystyle y=-\frac{56}{13}}[/tex]
What is the value of x in the equation 0.02x+0.7=0.8−0.03x ?
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i need helppp. thanks you!!!
Answer:
I believe that It would be L.
the point P has coordinates (2,1) and the point Q has coordinates(-2,-1). Find out the equation of the perpendicular bisector of PQ
Answer: y = -2x
M is the midpoint of PQ
=> M(0;0)
the line PQ passes through P(2;1) and Q(-2;-1)
=> (PQ): 2x - 4y = 0
have:
(d): perpendicular (PQ)
passes throgh M(0;0)
=> (d): 4x + 2y = 0 ⇔ y = -2x
Step-by-step explanation:
The equation of the perpendicular bisector of PQ is,
⇒ y = - 2x
What is Equation of line?The equation of line in point-slope form passing through the points
(x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
Where, m = (y₂ - y₁) / (x₂ - x₁)
Given that;
The point P has coordinates (2, 1) and the point Q has coordinates(-2, -1).
Hence, The slope of line is,
m = (y₂ - y₁) / (x₂ - x₁)
m = (- 1 - 1) / (- 2 - 2)
m = - 2 / - 4
m = 1/2
Thus, The slope of perpendicular line is,
⇒ m = - 2
The midpoint of coordinates (2, 1) and (- 2, - 1) is,
⇒ (- 1 + 1) / 2 , (- 2 + 2) / 2
⇒ (0, 0)
Hence, The equation of line is,
⇒ y = mx + b
⇒ 0 = - 2 × 0 + b
⇒ b = 0
Hence, The equation of the perpendicular bisector of PQ is,
⇒ y = - 2x
Learn more about the equation of line visit:
https://brainly.com/question/18831322
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3) Shayna and Anjali are selling pies for a school fundraiser. Customers can buy cherry pies and
pumpkin pies. Shayna sold 9 cherry pies and 10 pumpkin pies for a total of $105. Anjali sold 8
cherry pies and 11 pumpkin pies for a total of $106. Find the cost each of one cherry pie and one
pumpkin pie.
Answer
$7
Step-by-step explanation:
10-8= 2
9-2=7
please solve this for be before 7pm EDT
Answer for #5:
7 friends
Step-by-step explanation:
convert fraction into 4ths:
1/4, 2/4, 3/4, 1/4
add together:
7/4ths
if each friend ate 1/4 of the pizzas, then there are 7 friends
This might take forever but I’ll mark u as brainlist!! This is due tomorrow lol
ALGEBRA 1 HW< please help to give explanations
Please refer the attached pictures.
Hope this helps! :D
Answer:
See below
Step-by-step explanation:
a)
11x^2 + x^2 = (4x + 8)(3x - 3)12x^2 = 12x^2 + 24x - 12x - 2412x - 24 = 012x = 24x = 2b)
x/3 - x/9 = 63x/9 - x/9 = 62x/9 = 62x = 54x = 27c)
6^(x + 9) = 36^x6^(x + 9) = 6^(2x)x + 9 = 2x 2x - x = 9x = 9d)
4/9 + 1/a = 2/31/a = 2/3 - 4/91/a = 6/9 - 4/91/a = 2/9a = 9/2e)
√x + 3 = 6x + 3 = 6^2x = 36 - 3x = 33f)
1.2m - 0.2 = 3.8 + m
1.2m - m = 3.8 + 0.20.2m = 4m = 4/0.2m = 20g)
(x + 12)^2 = 9x + 12 = ± 3x = ± 3 - 12x = - 9, x = - 150.6 radians
1.0 radians
36.9 radians
53.1 radians
GOD WILL GIVE YOU A BILLION DOLLARS IN THE FUTURE!!! $$$$
How would I solve the slope for this? FULL SOLUTION AND FORMULA AS WELL PLEASE... GOD BLESS AND U WILL GET A BILLION DOLLARS IF YOU ANSWER. TRUST.
Answer
Step-by-step explanation:
2(x-1) ≥ 10 or 3-4x > 15
Solve the compound inequality, and show work!
Answer:
[tex]x\geq 6\text{ or } x<-3[/tex]
Step-by-step explanation:
We have the compound inequality:
[tex]2(x-1)\geq10\text{ or } 3-4x>15[/tex]
Let's solve each of them individually first:
We have:
[tex]2(x-1)\geq10[/tex]
Divide both sides by 2:
[tex]x-1\geq5[/tex]
Add 1 to both sides:
[tex]x\geq6[/tex]
We have:
[tex]3-4x>15[/tex]
Subtract from both sides:
[tex]-4x>12[/tex]
Divide both sides by -4:
[tex]x<-3[/tex]
Hence, our solution set is:
[tex]x\geq 6\text{ or } x<-3[/tex]
Answer:
x ≥ 6 or x < -3
Step-by-step explanation:
2(x-1) ≥ 10 or 3 - 4x > 15
2x - 2 ≥ 10 4x < -12
x ≥ 6 or x < -3
Topic: Inequalities
If you would like to venture further into mathematics, you can check out my Instagram page (learntionary) where I post notes and mathematics tips. Thanks!
The points in the table lie on a line. Find the slope of the line.
Х
6
--2
2.
6
y
8
5
2
1
Answer:
[tex] Slope (m) = -\frac{3}{4} [/tex]
Step-by-step explanation:
Using any two pairs from the table of values given, (-2, 5) and (2, 2):
[tex] Slope (m) = \frac{y_2 - y_1}{x_2 - x_1} [/tex]
Where,
[tex] (-2, 5) = (x_1, y_1) [/tex]
[tex] (2, 2) = (x_2, y_2) [/tex]
Plug in the value into the slope formula:
[tex] Slope (m) = \frac{2 - 5}{2 -(-2)} [/tex]
[tex] Slope (m) = -\frac{3}{4} [/tex]
Jarome is 6 feet tall and cast a shadow that is 8 feet long. If a tree is 24 feet tall, how long will it's shadow be?
27 feet
32 feet
30 feet
18 feet
Answer:
32 feet
Step-by-step explanation:
6 = 8
24 = ?
24 × 8 = 197
197 ÷ 6 = 32.
Answer:
32 feet
Step-by-step explanation:
ratio 6:8 simplified is 3:4
[tex]\frac{3}{4}[/tex] x [tex]\frac{8}{8}[/tex] = [tex]\frac{24}{32}[/tex]
32 Feet
Luis has a pyramid shaped plant pot. It has a square base with a side length of 36 cm, and the height of the pot is 36 cm. Luis wants to fill the pot with soil so that the soil takes up 75% of the pot's volume. How far up the pot will the soil reach?
Answer:
The required volume, if he wants to fill 75% of the pot's volume, is 11664cm³
Step-by-step explanation:
The volume of a pyramid is given as
[tex]V = \frac{1}{3} \times A \times h[/tex]
Where V is the pot's volume, A is the base area and h is the height.
Our base is a square, so the base area, if s denotes the side length, would be s x s.
s = 36cm, therefore we have A = 36cm X 36cm = 1296cm².
The height is given as 36cm, therefore we have our volume to be:
[tex]V = \frac{1}{3} \times 1296cm^2 \times 36cm[/tex]
[tex]V = 15552cm^3[/tex]
Since Luis wants to fill 75% of the pot's volume with soil. Then it will take
[tex]\frac{75}{100} \times 15552cm^3 = 11664cm^3 [/tex]
Thus, the required volume, if he wants to fill 75% of the pot's volume, is 11664cm³
Item 9 A baker uses 23 of a canister of flour to bake 4 loaves of bread. How much flour does the baker use to bake 3 loaves of bread? Write your answer in simplest form.
Answer: 17.25
Step-by-step explanation:
can someone help do the steps please
Answer:
-9=b
Step-by-step explanation:
1. combine multiple turns into a single fraction.
2. multiple all terms by the same value to eliminate
fraction denominators.
3. simplify
4. divide both sides of the equation by the same term
5. simplify
PLEASE HELP!!!!! Mr. Ramirez purchased 20 concert tickets for a total of $225. The concert tickets cost $15 for adults and $10 for children under the age of 12. What does the solution to the system of equations represent in the context of the problem? Explain.
Answer:

5
camjoyner9316
04/30/2020
Mathematics
High School
answered
Mr. Ramirez purchased 20 concert tickets for a total of $225. The concert tickets cost $15 for adults and $10 for children under the age of 12. Part A: Write a system of equations to represent the given scenario. Use the variable "a" for adults and "c" for children.
1
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Answer
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wagonbelleville
Ambitious
4.3K answers
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Answer:
$225 = $15 a + $ 10 c
Given,
Total price = $225
Cost of concert ticket for adults= $15
Cost of concert ticket for children = $10
System of equation to represent scenario
a is variable for adult
c is variable for children
Now,
Total price = $15 a + $ 10 c
$225 = $15 a + $ 10 c
What is the length of leg y of the right triangle?
A right triangle with hypotenuse 37 and legs 35 and y
2
8
12
35
Answer:
12
Step-by-step explanation:
i took the test
Please help! im so confused.
i just need you to fill in the blanks. there should be a picture.
I will give you brainiest if you can do all 3!!
tysm! :)
Answer:
Bestieeeeeeeeeeeeee we need to talk
Step-by-step explanation:
Pleaseeeee its important
if -13x-71=201 what is x
Answer:
272/-13 or −20.923
Step-by-step explanation:
To solve this equation you need to isolate the variable.
First, add 71 to both sides
-13x-71+71=201+71
-13x=272
Then, divide both sides by -13
-13x/-13=272/-13
So, x=272/-13 or −20.923