Answer:
405 miles
Step-by-step explanation:
Step 1:
4 : 90 = 18 : x Proportion
Step 2:
4x = 1620 Multiply
Step 3:
1620 ÷ 4 Divide
Answer:
405 miles
Hope This Helps :)
plzzzzzzzzzz helppppp
Answer:
i cant see it
Step-by-step explanation:
Answer:
Domain: [-6,8]
Range: [-7, 8]
Step-by-step explanation:
My answer is written in interval notation.
Domain:
The domain is all the possible x values the function has. if you look at the graph, the x values do not pass -6 when going left, and it also does not pass 8 when going right. filled in circles means that point is included, which is why I used brackets instead of parenthesis.
Range:
The range is all the possible y values the equation can have. If you look at the graph, the graph does not have a point that goes below -7, or above 8. filled in circles means that point is included, which is why I used brackets instead of parenthesis.
*make sure to put the lower number first, which is why I put the negative numbers then the positive ones.
Greta learned that about 10% of people are left-handed. She ran 10 different simulations
using random digits to find the probability that there is a left-handed person in a group
of 5 randomly selected people. In the table below, O represents a left-handed person and
1 through 9 represent a right-handed person. Each row represents one simulation of 5 people.
3
1
4
9
6
5
6
9
6
7
5
3
2
6
8
1
4
4
2
8
9
4
4
2
6
6
7
4
9
6
4
8
8
ww00
2
4
4
2.
0
6
1
6
0
5
2
0
9
Answer:6%
Step-by-step explanation:
Work it out smh
The probability that there is a left-handed person in a group of 5 randomly selected people is 6%
It is given that Greta learned that about 10% of people are left-handed.
It is required to find the probability that there is a left-handed person in a group of 5 randomly selected people.
What is probability?It is defined as the ratio of the number of favorable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.
We have a total number of people = 50 (because 10 rows and 5 columns)
In the question, it is given that the 0 represents a left-handed person.
Then the number of left-handed people = 3 (there are three zero's in the table)
We know:
[tex]\rm Probability = \frac{ favorable \ outcomes}{total \ outcome}[/tex]
[tex]\rm Probability= \frac{3}{50}[/tex]
Probability = 0.06 or
Probability = 0.06×100 ⇒ 6%
Thus, the probability that there is a left-handed person in a group of 5 randomly selected people is 6%
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DITII
Deyuences
SAQ 1: What is the importance of having the steps in formulating an explicit formula?
Answer:
The importance of having the steps in the formulation of an explicit formula are;
1) It promote repeatability of the derivation
2) It ensures traceability so as to outline the areas covered by the proof of the formula
3) It provides proof of the validity of the formula
4) It provides a improved insight into the given problem
5) It improves understanding of the problem
6) It serves as a back bone for more advanced proofs
Step-by-step explanation:
help! What is the ratio of the number of beaks to the number of legs the chickens and the sheep have on this farm?
Number of Chickens Number of Sheep
8 14
A.
1 beak : 7 legs
B.
1 beak : 9 legs
C.
2 beaks : 7 legs
D.
2 beaks : 9 legs
Answer:
1:9
Step-by-step explanation:
The expression x-2 has a value of -5 for some value of x. For the same value of x, what is the value of the expression (x-2)²+5x-10? Show your reasoning for this problem in the space provided.
(1) 0 (2) 15 (3) 14 (4) -10
Answer:
-10
Step-by-step explanation:
Assuming that x-2=-5, we can subtitute it into the equation as follows:
(-5)^2 + 5(-5) - 10, we start off with the exponent according to the order of operations resulting in:
25 + 5(-5) -15, then we do the multiplication next:
25 + (5 * -5 = -25) so:
25 + -25 - 10, the 25s cancel each other out and your left with:
0 - 10 which equals -10
WILL GIVE BRAINLIEST!!!!!!
Hiram has a total of 20 nickels and quarters. The value of the coins is $4.00.
Write a system of equations that represents the number of coins he has
How many nickels and quarters does he have?
Answer:
Sorry idk the answer...
During the summer, you work 40 hours per week at a coffee shop and eam $9.25 per hour. You also tutor for $10.00 per hour and can work as many hours as you want. You want to earn a total of $425 per week. How many hours must you tutor?
Answer:
6 hours worked as a tutor
Step-by-step explanation:
40 x 9.25 = 370$
425 - 370 = 55
55/10 = 5.5
so 5.5 but because you work full hour round up to 6 hour worked as a tutor
An equation is formed of two equal expressions. The number of hours you must tutor to earn $425 is 5.5 hours.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
Given that you work 40 hours per week at a coffee shop and earn $9.25 per hour. You also tutor for $10.00 per hour and can work as many hours as you want. Therefore, we can write the total earnings as,
Total earning = Earning from the coffee shop + Earning from the tutoring
Total earning = ($9.25 × 40 hours) + ($10 + x number of hours)
It is also given that You want to earn a total of $425 per week. Therefore, we can write,
Total earning = ($9.25 × 40 hours) + ($10 + x number of hours)
$425 = ($9.25 × 40) + $10x
Solving the equation for x,
$425 = $370 + $10x
$425 - $370 = $10x
$55 = $10x
x = 55/10
x = 5.5
Hence, the number of hours you must tutor to earn $425 is 5.5 hours.
Learn more about Equation here:
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using linear pairs to find an unknown value what is the value of X
Answer:
linear pairs are always 180 degree.
Step-by-step explanation:
sample: x + 30° + 20° = 180°
x = 180° - 50°
x = 130°
I neeeeed it rnnnnnnnn pls
Answer:
its greater
Step-by-step explanation:
At a dog shelter, a 28-pound bag of dog food will feed 42 dogs. How many dogs would you expect to feed with a 14-pound bag of dog food? (Input only whole numbers.)
Pounds of Dog Food 14 28 56
Number of Dogs Fed ? 42 84
Answer: A 14-Pound bag will feed 21 dogs.
Step-by-step explanation: Because 14 is half of 28 all you need to do is divide 42 by 2 like this 42/2=21 you can check your answer by adding the answer twice like this 21+21=42
Answer:
its 21 good day
Step-by-step explanation:
-1/4(-8x+12y)
What is an equivalent expression to this equation
x=-4/9 x=-5/4 NEED HELP GETTING TRINOMIALS FROM SOLUTIONS
The equation 36x^2 + 61x + 20 = 0 solves to x = -4/9 or x = -5/4
==========================================================
Explanation:
x = -4/9 or x = -5/4 .... given solutions
9x = -4 or 4x = -5 .... multiply both sides by denominator
9x+4 = 0 or 4x+5 = 0 .... get everything to one side
(9x+4)(4x+5) = 0 .... zero product property
y(4x+5) = 0 ...... let y = 9x+4
y*4x + y*5 = 0 .... distribute
4xy + 5y = 0
4x( y ) + 5( y ) = 0
4x( 9x+4) + 5( 9x+4 ) = 0 ... plug in y = 9x+4
4x*9x + 4x*4 + 5*9x + 5*4 = 0 ..... distribute
36x^2 + 16x + 45x + 20 = 0
36x^2 + 61x + 20 = 0
-----------------
The equation 36x^2 + 61x + 20 = 0 has the two solutions x = -4/9 and x = -5/4
We can use the quadratic formula to confirm this.
break down 26 and 8 into factors
Answer:
26: 1 and 26, and 2 and 13
8: 1 and 8, and 2 and 4
Step-by-step explanation:
Why would two lines be parallel to each other based on where the congruent angles are positioned
Identify the slope of the following equation . y=4/5x+8
Answer:
4/5x is your slope and 8 is your y intercept
Step-by-step explanation:
anyone know this?? i need help!
Answer:
45.50(7/10)
Step-by-step explanation:
Multiplication with fractions is the same as division with integers
what is the opposite of 0.75
The opposite of 0.75 is -3/4.
What is Additive Inverse?To get a result equal to 0, add the original number and the additive inverse by simply changing the sign of the integer. On the basis of negation of the original number, the characteristics of additive inverse are listed below.
Given:
we have 0.75
So, to find the opposite we have to find the additive inverse of 0.75
Then, the additive inverse of 0.75 is (-0.75).
Then, -0.75 = -3/4.
Hence, the opposite is -3/4.
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correct answer will be marked as brainliest
Answer:
h=9cm
P=(x+5)cm
b=(x-3)cm
by the Pythagoras theorem,
h^2=p^2+b^2
9^2=(x+5)^2+(x-3)^2
81=x^2+10x+25+x^2-6x+9
81=2x^2+4x+34
Factor: 5x2 – 15x – 20
(a) 5(x-4)(x+1)
(b) -2(x-4)(x+5)
(c) -5(x+4)(x-1)
(d) 5(x+4)(x+1)
Answer:
A.
Step-by-step explanation:
5x^2 – 15x – 20
= 5(x^2 – 3x – 4)
= 5(x^2 – 4x + x – 4)
= 5{x(x - 4) +1(x - 4)}
= 5(x-4)(x+1)
Determine whether the conclusion is based on inductive or deductive reasoning.
The library charges $0.25 per day for overdue books. Kyle returns a book that is 3 days overdue. Kyle concludes that he will be charged a $0.75 fine
Deductive or Inductive
Answer:
I think it is Deductive because it seems like a specific question
Step-by-step explanation
"In logic, we often refer to the two broad methods of reasoning as the deductive and inductive approaches. Deductive reasoning works from the more general to the more specific. Inductive reasoning works the other way, moving from specific observations to broader generalizations and theories."
A scatterplot is used to display data for a runner where x is the number of miles run, and y is the time, in minutes, that it
takes to run that distance.
Which interpretation describes a line of best fit of y = 9.5x for the data in the scatterplot?
For each 1 minute, the runner ran 9.5 miles.
The missing choices are:
(A) for each 1 minute, the runner ran 9.5 miles.
(B) for each 9.5 minutes, the runner ran 1 mile.
(C) the minimum distance with a recorded time is 9.5 miles.
(D) the maximum distance with a recorded time is 9.5 miles.
Answer:
The interpretation that describes the line best fit of y = 9.5 x is: for each 9.5 minutes, the runner ran 1 mile. ⇒ (B)
Step-by-step explanation:
Since the equation of the line best fit is y = 9.5 x, where
x is the number of miles runy is the time in minutes9.5 is the rate of change of the time to the mileThe rate of change = change of y/ change of x
∵ y represents the time in minutes
∵ x represents the distance in miles
∴ The rate of change = minutes / mile
∵ The rate of change = 9.5 minutes / 1 mile
∴ The interpretation describes the line best fit is:
For each 9.5 minutes, the runner ran 1 mile
Answer:
b on edge
Step-by-step explanation:
Given: (−10,2) and (3,5), the midpoint is???
Answer:
M=(−7/2,7/2).
Step-by-step explanation:
Answer:
[tex] \huge{ \boxed{ \sf{( \frac{ - 7}{2} \:, \: \frac{7}{2})}}} [/tex]
Step-by-step explanation:
[tex] \star{ \sf{Let \: the \: points \: be \: A \: and \: B}}[/tex]
[tex] \sf{A( - 10 ,\: 2) \longrightarrow{ \: (x1 \:, y1)}}[/tex]
[tex] \sf{B(3 \:, 5) \: \longrightarrow} \: \sf{(x2 \:, y2)}[/tex]
[tex] \underline{ \text{Finding \: the \: midpoint}} : [/tex]
[tex] \boxed{ \sf{Midpoint \: = \: ( \frac{x1 + x2}{2} \: , \frac{y1 + y2}{2} )}}[/tex]
[tex] \mapsto{ \sf{Midpoint = ( \frac{ - 10 + 3}{2} \: , \frac{2 + 5}{2} }})[/tex]
[tex] \text{Remember!} : [/tex]
The positive integers are always added and posses the positive ( + ) sign.The negative integers are always added but posses the negative ( - ) sign.The negative and positive integers are always subtracted but posses the sign of the bigger integer.[tex] \mapsto{ \sf{Midpoint = ( \frac{ - 7}{2} , \: \frac{7}{2} }})[/tex]
Hope I helped!
Best regards! :D
~[tex] \text{TheAnimeGirl}[/tex]
Find the coordinate of midpoint of seg given
(-2,2) and (6,4)
Answer:
[tex] \huge{ \fbox{ \sf{ \: ( \: 2 \:, 3 \: )}}}[/tex]
Step-by-step explanation:
[tex] \star{ \sf{ \: \: Let \: the \: points \: be \: A \: and \: B}} : [/tex]
[tex] \star{ \sf{ \: Let \: A( - 2 \:, 2 \: ) \: be \: (x1 \:, y1) \: and \: B \: ( \: 6 \:, 4 \: ) \: be \: (x2 \:, y2)}}[/tex]
[tex] \underline{ \sf{Finding \: the \: midpoint}} : [/tex]
[tex] \boxed{ \sf{Midpoint = ( \frac{x1 + x2}{2} ,\: \frac{y1 + y2}{2} )}}[/tex]
[tex] \mapsto{ \sf{Midpoint = ( \frac{ - 2 + 6}{2} \,, \frac{2 + 4}{2} }})[/tex]
[tex] \underline{ \text{Remember!}} [/tex]
The positive integers are always added and posses the positive ( + ) sign.The negative integers are always added but posses the negative ( - ) sign.The negative and positive integers are always subtracted but posses the sign of the bigger integer.[tex] \mapsto{ \sf{Midpoint = ( \frac{4}{2} ,\: \frac{6}{2} )}}[/tex]
[tex] \mapsto{ \sf{Midpoint = ( \: 2 ,\: 3)}}[/tex]
Hope I helped!
Best regards! :D
~[tex] \text{TheAnimeGirl}[/tex]
Find the midpoint of the segment with the given endpoints
(0,-7) and (-5,5)
HELP ASAP
Given the equation: 2x – 4 = 7, which property should be applied first?
Division Property
Subtraction Property
Multiplication Property
Addition Property
solve the inequality 8(x - 2) + 9 < 3(x - 1) + 5x
Answer:
no solution
Step-by-step explanation:
If one factor 56x^4 y^3 - 42x^2y^6 is 14x^2y^3 what is the other factor
Answer:
[tex](4x^{2} -3y^{3} )[/tex]
Step-by-step explanation:
This is our starting equation:
[tex]56x^{4}y^{3}-42x^{2}y^{6}[/tex]
We then factor out the known factor:
[tex]14x^{2}y^{3}(4x^{2}-3y^{3})[/tex]
And are left with our answer in parentheses:
[tex](4x^{2} -3y^{3} )[/tex]
Ellen can purchase 5 apples for $1.75. How many apples can she get for $1.00
Help!!!
Answer:
She can get 2
Step-by-step explanation:
2 multiplied by 35 equals 70 and 3 multiplied by 35 is 1.05 so Ellen can only get 2 apples
Hope it helps :)
Brainliest pls? Have a good day/night
8( 3x + 3) = 3(9x-9)
Answer:
x = -15
Step-by-step explanation:
x equals negative 15
Which equation below would be perpendicular to the line x=5
Answer: y=3
Step-by-step explanation:
