Answer:
The number of times over the Weekend that:
Ashley watched TV = x = 12 hours
Gabby watched TV = y = 6 hours
Step-by-step explanation:
Let us represent:
The number of times
Ashley watched TV = x
Gabby watched TV = y
Together, Ashley and Gabby watched a total of 14 hours of television over the weekend.
= x + y = 14..... Equation 1
x = 14 - y
Ashley watched 6 times as many hours as Gabby.
x = 6y
Using substitution method
We substitute 14 - y for x
14 - y = 6y
14 = 6y + y
14 = 7y
y = 14/7
y = 2 hours
Solving for x
x = 14 - y
x = 14 - 2
x = 12 hours
Therefore:
The number of times over the Weekend that:
Ashley watched TV = x = 12 hours
Gabby watched TV = y = 6 hours
Which figures have rotation symmetry?
Select each correct answer.
Answer:
the answers are the x and the star (or just B and C)
Step-by-step explanation:
How do I know? I just know...
JK
Rotational semetry is if one shape looks the same, even fliped in a sort of way.
(2x - 7) what is the value of X
Answer:
I guess 7/2
Step-by-step explanation:
2x - 7 = 0
2x = 7
x= 7/2 ?
You didnt give us what the equation equals to
there are 2 questions pls answer fast
In a certain code the word CASH is coded as FDVK and the word MONEY is coded as PRQHB.
What would the word RETURNS be coded as ?
a. UHWROKP
b. UHWXUQV
c. OBQROKP
d. UHWXUQP
11M + N – P = 12
Which of the following values for M , N , P would make the above number sentence true ?
a. M = 6, N = 6 , P = 6
b. M = 7, N = 6 , P = 1
c. M = 11, N = 0 , P = 1
d. M = 10, N = 11 , P = 12
Answer:
Q1: B. UHWXUQV
Q2: None of these answers equal 12 so I'll just tell you the answers for all of them in case you mistyped.
a. 66
b. 82
c. 120
d. 109
Im assuming you meant 120. If so, your answer is c.
how many square units is the area of the rectangle
Answer:
-30m^11n^5
Step-by-step explanation:
the length of a rectangle is width times length (or base times height).
5m^7n^3 times -6m^4n^2 = -30m^11n^5
I hope this helped, please give brainliest if this is correct! Thank you!
Please help what is 21 divided by 3 x 10 + 66.86 SIMPLIFIED please and thank you
Answer:
70/x
Step-by-step explanation:
Answer:
136.86 or 137
Step-by-step explanation:
21÷3x10+66.86
here's what I did...
as simplified its: 137
Pls help with these ASAP
Solve the inequality. Graph the solution.
2n > 20
Pls show Yhur work
Answer:
n > 10 is the inequality solved, but there is no way to graph this equation.
Step-by-step explanation:
Key skills: Inequalities, Division
1) You are given the inequality 2n > 20
2) To solve for n, you have to divide by 2 on both sides.
3) 2n/2 > 20/2
4) 2n/2 = n
5) 20/2 = 10
6) The inequality is n> 10
There is no way to graph this as it has no x or y values in it (coordinate graphing requires x or y in the inequality)
The solution to the inequality is n > 10
To solve the inequality 2n > 20, we need to isolate n by dividing both sides of the inequality by 2:
2n/2 > 20/2
n > 10
The solution to the inequality is n > 10, indicating that n must be greater than 10 for the inequality to hold true.
To graph the solution, we represent the solution on a number line. We start by marking a point at 10, and then shade the region to the right of 10 to indicate all values greater than 10.
Graphically, it would be represented as an open circle at 10 with a shaded line extending to the right.
This represents the solution n > 10.
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In a certain breed of cattle, the length of gestation has a mean of 284 days and a standard deviation is 5.5 days. One length of gestation had a z-score of -1.70. Which of the following sentences best interprets the z-score?
A. The length of this gestation period was longer than the mean length of gestation periods by 1.7 days.
B. The length of this gestation period was shorter than the mean like the gestation periods by 1.7 days.
C. The length of this gestation period was longer than the mean length of gestation periods by 1.7 standard deviations.
D. The length of this gestation period was shorter than the mean length of gestation periods by 1.7 standard deviations.
Answer:
The statement that best interprets the z-score is;
D. The length of the gestation period was shorter than the mean length of gestation period by 1.7 standard deviations
Step-by-step explanation:
The given parameters are;
The length of the gestation period of the cattle breed = 284 days
The standard deviation = 5.5 days
The z-score of one length of gestation period was z = -1.70
The formula for finding the z-score, z is presented as follows
[tex]Z=\dfrac{x-\mu }{\sigma }[/tex]
Where;
x = The observed value for the gestation period
μ = The sample mean length for the gestation period = 284
σ = The gestation period standard deviation = 5.5
When Z = -1.70, we have;
[tex]-1.70 =\dfrac{x-\mu }{\sigma }[/tex]
∴ x - μ = -1.7 × σ
∴ x is shorter than μ by 1.7×σ
Therefore, the length of the gestation period, x, was shorter than the mean length of gestation period, μ, by 1.7 standard deviations, σ.
Answer:
D. The length of the gestation period was shorter than the mean length of gestation period by 1.7 standard deviations
Step-by-step explanation:
the measure of one interior angle of a regular 90-sided polygon.
9514 1404 393
Answer:
176°
Step-by-step explanation:
The total of exterior angles is 360°, so one of those for the regular polygon will be 360°/90 = 4°. The adjacent interior angle is the supplement of this.
The interior angles measure 180° -4° = 176°.
Find the slope of the line passing through the points (-6,2), (0,-6).
A-6
B. 2
C. -4/3
DO
E-3/1
C. -4/3
[tex]slope = \frac{(y _{2} - y _{1}) }{(x _{2} - x _{1} )} \\ = \frac{( - 6 - 2)}{(0 -( - 6)} \\ = \frac{ - 8}{ 6} \\ = - \frac{4}{3} [/tex]
Helloo!! I really need help on this. Thank you! I’ll mark brainly.
Rise/Run
5/4
You go to the point farthest to the left and count up. This will be your Rise. Then you count over to the point on the right. This will be your Run.
what is the length of the hypotenuse?
Answer:
10
Step-by-step explanation:
c²=b²+a²=100
so
c=10
jjthj
hello, I need help with question ASAP please
Answer:
x= 9°
Step-by-step explanation:
[tex]180 - 171 = 9[/tex]
[tex]x = 9[/tex]
Solve the system of equations using the substitution method. X + 3y = -4 x= - 4y
Answer:
x: -16
y: 4
Step-by-step explanation:
If 1 meter is equivalent to 3.28 feet, then approximately how many meters are in one mile?
Answer:
1609.8
Step-by-step explanation:
Answer:
1609.34
Step-by-step explanation:
1 meter = 3.28 feet
1 mile = 5280 feet
Find the area of the prism pls help!!
Answer:
The pdf wont work
Step-by-step explanation:
cant help
Help! Now Please! Explain!
Answer:
83
Step-by-step explanation:
you go up so it is positive. it's up 83 so the number is 83.
Step-by-step explanation: The keyword is up. Since we're talking about integers and the keyword is up, the number is positive.
Therefore, the answer is 83, or say it like this, positive 83.
For example: Start at 0. Then go up by 83. (That's why there is a number line.
7p-5=6p+8 what is the answer to that
Answer:
p=13
Step-by-step explanation:
What is the equation of the line that passes through the point (1, 3) and is perpendicular to the line 2x+3y=15?
The equation of the line that passes through the point(1, 3) and is perpendicular to the line 2x + 3y = 15 is y = 3 / 2x + 3 / 2.
How to find the equation of a line perpendicular to another?The line passing through (1, 3) is perpendicular to the equation 2x+3y=15.
Therefore,
y = mx + b
where
m = slopeb = y-interceptHence,
3y = -2x + 15
y = -2 / 3 x + 5
For line to be perpendicular it must follow the following rules;
m₁m₂ = -1
m₁(-2 / 3) = -1
-2m₁ = -3
m₁ = 3 / 2
Therefore, the equation can be found as follows:
3 = 3 / 2(1) + b
3 = 3 / 2 + b
b = 3 - 3 / 2
b = 6 - 3 / 2
b = 3 / 2
Hence,
y = 3 / 2x + 3 / 2
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You saved 20% off of the original price. The original price was $60. How much was your saving
Answer:
$12
Step-by-step explanation:
Find x so that x, X +2, X'+3 are the first three terms of a geometric sequence. Then find the 5" term of the
sequence.
Answer:
The fifth term is -1/4.
Step-by-step explanation:
We know that the first three terms of the geometric sequence is x, x + 2, and x + 3.
So, our first term is x.
Then our second term will be our first term multiplied by the common ratio r. So:
[tex]x+2=xr[/tex]
And our third term will be our first term multiplied by the common ratio r twice. Therefore:
[tex]x+3=xr^2[/tex]
Solve for x. From the second term, we can divide both sides by x:
[tex]\displaystyle r=\frac{x+2}{x}[/tex]
Substitute this into the third equation:
[tex]\displaystyle x+3=x\Big(\frac{x+2}{x}\Big)^2[/tex]
Square:
[tex]\displaystyle x+3 = x\Big( \frac{(x+2)^2}{x^2} \Big)[/tex]
Simplify:
[tex]\displaystyle x+3=\frac{(x+2)^2}{x}[/tex]
We can multiply both sides by x:
[tex]x(x+3)=(x+2)^2[/tex]
Expand:
[tex]x^2+3x=x^2+4x+4[/tex]
Isolate the x:
[tex]-x=4[/tex]
Hence, our first term is:
[tex]x=-4[/tex]
Then our common ratio r is:
[tex]\displaystyle r=\frac{(-4)+2}{-4}=\frac{-2}{-4}=\frac{1}{2}[/tex]
So, our first term is -4 and our common ratio is 1/2.
Then our sequence will be -4, -2, -1, -1/2, -1/4.
You can verify that the first three terms indeed follow the pattern of x, x + 2, and x + 3.
So, our fifth term is -1/4.
I
- 2y = -12
2x + 9y = 2
Answer:
I need more clarification for anythng else, this is the best i can do
Step-by-step explanation:
the area of a triangle is 30cmsquare find the base if the altitude exceeds the base by 7 cm
Answer:
5 cm
Step-by-step explanation:
Area= 1/2 base×altitude
let base be x cm hence altitude = x+7 cm
30 = 1/2 (x) (x+7)
60= x^2 + 7x
x = 5 or - 12
but measurements can't be in negative form hence -12 is discarded. Thus x= 5 cm
x= base hence base = 5cm
Answer:
base = 5 cm
Step-by-step explanation:
The area (A) of a triangle is calculated as
A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the altitude )
let base be b then h = b + 7
Given A = 30, then
[tex]\frac{1}{2}[/tex]b(b + 7) = 30 ( multiply both sides by 2 to clear the fraction )
b(b + 7) = 60 ← distribute left side
b² + 7 = 60 ( subtract 60 from both sides )
b² + 7 - 60 = 0 ← in standard form
(b + 12)(b - 5) = 0 ← in factored form
Equate each factor to zero and solve for b
b + 12 = 0 ⇒ b = - 12
b - 5 = 0 ⇒ b = 5
However, b > 0, thus b = 5
That is the base is 5 cm
What is the measure of Zx?
Angles are not necessarily drawn to scale.
х
41°
- Z
o
2=
0
Answer:
the answer its 49
Step-by-step explanation:
simple math just subtract 90-41 and you will get 49
Answer this please tell me if I’m correct
A parking garage charges $5 for the first hour, $10 for up to 2 hours, and $12 for the entire day. Let G be the dollar cost of parking for t hours
Answer:
Cost is G for t hours =[tex]\left \{ {5t for{t=0 <t<2} \atop 12 for{t >2}} \right.[/tex]
Step-by-step explanation:
According to question parking garage takes
5$ for 0 to 1hr
10$ for 0 to 2hr and
12$ for 0 to 24hr
Let t be the time for which car is parked in garage and the total cost is G then
G =[tex]\left \{ {5t for{t=0 <t<2} \atop 12 for{t >2}} \right.[/tex]
therefore cost is G =[tex]\left \{ {5t for{t=0 <t<2} \atop 12 for{t >2}} \right.[/tex]
The cost of parking a car for 5 hours is required.
Cost of 5 hours will be $25.
The cost of parking for each hour = $5
The cost of parking for entire day = $120
Let [tex]t[/tex] be the number of hours
[tex]G[/tex] be the total cost.
The function will be
[tex]G(t)=5t[/tex]
The cost at 5 hours will be
[tex]G(5)=5\times 5=25[/tex]
So, cost of 5 hours will be $25.
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Tina has a pet sitting business. She charges a flat service fee of $30, plus $20 per day for each animal. If one of her customers spent less than $170 on one animal, which of the following inequalities could be used to solve for x, the number of days the customer paid for pet sitting?
A.
$20x < $170
B.
$20x + $30 < $170
C.
$20x < $200
D.
$20x - $30 < $200
Answer:
Option B: $20x + $30 < $170 is the correct answer.
Step-by-step explanation:
Given that:
Service fee of Tina's business = $30
Per day charges = $20
Number of days = x
Customer's budget = less than $170
According to given statement;
20x + 30 < 170
Hence,
Option B: $20x + $30 < $170 is the correct answer.
Write 5 pounds for $2.49 as a unit rate. Round to the nearest hundredth
Answer:
5 pounds = $2.49
1 pound = $2.49 ÷ 5 = $0.50 (nearest hundredth)
Answer: $0.50/pound
Step-by-step explanation:
The perimeter of an iPhone is 8.2 inches. What is the total length of the perimeters of 4 iPhones?
Answer:
32.8 is the answer
Step-by-step explanation:
hope it helps u
Answer:32.8
Step-by-step explanation:
A system of equations has 1 solution. If 4x – y = 5 is one of the equations, which could be the other equation?
y = –4x + 5
y = 4x – 5
2y = 8x – 10
–2y = –8x – 10
Answer:
The answer is y=4x-5
A system of equations has 1 solution. If 4x – y = 5 is one of the equations, which could be the other equation?
y = –4x + 5
y = 4x – 5
2y = 8x – 10
–2y = –8x – 10
–2y = –8x – 10
Help Me pls i need this done by 11:59 pm
Answer:
11 or 22 would be one of your answer i believe it is 11 though
Step-by-step explanation:
mark me brainly have an amazing day
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