Answer:
(i) 3:10
(ii) 6:15:20
Step-by-step explanation:
a : b
2 : 5
b : c
3 : 4
Since both values of b in the two ratios are different, we need to multiply each ratio so that they are the same. I will multiply the first ratio by 3 and the second ratio by 5 so that b = 15 units.
a : b
6 : 15
b : c
15 : 20
Now that both values of b are the same, we can arrange the variables a, b and c together.
Thus:
a : b : c
6 : 15 : 20
a : c
6 : 20
3 : 10
What is the rule used to transform ABC to its image
Answer:
we don't see an image?
Step-by-step explanation:
Solve 3(2x+2)=10x+4−4x+2.
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A.
x=nothing
B.
The equation has infinitely many solutions.
C.
The equation has no solution.
Answer:
The answer is D
Step-by-step explanation:
An object is traveling at a steady speed of 10 1/5 mi/h. How long will it take the object to travel 1 4/5? First round to the nearest integer to find the estimated answer. Then find the exact answer
Answer: [tex]2\dfrac13\ h[/tex]
Step-by-step explanation:
Given: Speed = [tex]10\dfrac15[/tex] mi/h [tex]=\dfrac{21}{5}[/tex]mi/h
Distance need to be travel = [tex]1\dfrac45[/tex] miles [tex]=\dfrac{9}{5}[/tex] miles
[tex]speed=\dfrac{distance}{time}\\\\\Rightarrow\ time=\dfrac{distance}{speed}[/tex]
[tex]\Rightarrow\ time =\dfrac{\dfrac{21}{5}}{\dfrac{9}{5}}\\\\\Rightarrow\ time =\dfrac{21}{9}\\\\\Rightarrow\ time =\dfrac{7}{3}\\\\\Rightarrow\ time =2\dfrac13\ h[/tex]
Hence, time taken to travel = [tex]2\dfrac13\ h[/tex]
For the system, what is the y-value? -5x + 3y =10 -x + 6y = 4
Answer:
The answer i believe is y=-10/3 - 4x/3
Step-by-step explanation:
No need to show work just answers! For number 11 please
Answer:
A) 36
B) ? sorry man
C) 20
Step-by-step explanation:
What is the area of the semicircle
Answer:
Apply the formula πr^2/2
Answer:
56.52
Step-by-step explanation:
The forst thing to do is find the area of the entire circle.
[tex] {r}^{2} \times 3.14[/tex]
So add the radius to the equation.
[tex] {6}^{2} \times 3.14[/tex]
Solve for the equation.
[tex]36 \times 3.14 \\ 113.04[/tex]
Now that is the area of the entire circle, so all is needed is to divide that by 2.
[tex]113.04 \div 2 \\ 56.52[/tex]
Now you have the area of the semicircle.
Which of the following describes a linear association?
All points must form a straight line.
A horizontal line can be drawn such that all the data points are below it.
A line can be drawn through at least two of the points.
A line can be drawn through the data points which approximates the data
Answer:
A line can be drawn through the data points which approximates the data
The statement that describes a linear association is - A line can be drawn through the data points which approximates the data
What is correlation?"It describes the degree to which two variables move in coordination with one another. ""If the two variables move in the same direction, then those variables have a positive correlation." "If they move in opposite directions, then they have a negative correlation."What is scatterplot?"It is a graph of the paired (x, y) sample data with a x-axis and y-axis."
What is linear association?"It is used to describe a straight-line relationship between two variables.""It can be expressed as mathematical equation of the form y = mx + b.""In this type of association, when one variable changes it also causes the changes in the second variable.""The strongest linear association occurs when the slope is 1 that is m = 1"We know that, correlation is defined as the statistical association between two variables.
A correlation exists between two variables when one of them is related to the other in some way.
A relationship or association between two variables is linear when the points on a scatterplot follow a somewhat straight line pattern.
A line that goes roughly through the middle of all the scatter points on a graph is the line of best fit.
The closer the points are to the line of best fit the stronger the linear association is.
This means, a line can be drawn through the data points which approximates the data.
Therefore, the statement that describes a linear association is - A line can be drawn through the data points which approximates the data
Learn more about the linear association here:
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I REALLY NEED HELP please somebody
Answer:
WITH WHAT WHATS WRONG???
Step-by-step explanation:
yes tell the question
How many solutions does this equation have
6x + 2x - 4= 4(2x - 1)
Answer:
All Real Numbers
Step-by-step explanation:
Step 1:
6x + 2x - 4 = 4 ( 2x - 1 ) Equation
Step 2:
8x - 4 = 8x - 4 Combine Like Terms
Step 3:
8x = 8x Add 4 on both sides
Answer:
All Real Numbers
Hope This Helps :)
Find the missing part
Given: regular square pyramid
Find PY
Answer:
PY = 3 sqrt 3
Step-by-step explanation:
Hope it helps.
I need help for my finals review.
Find the area of triangle FGH with coordinates F(-6,1) G(-5,-4) and H(2,1).
A. 21.7 units
B. 10 units
C. 20 units
D. 40 units
Another oneeeeeeeeeeeeeeeeee
Answer:
c
Step-by-step explanation:
pick me as the brainlist
Answer:
B. The student multiplied 380 by [tex]\frac{19}{20}[/tex].
Step-by-step explanation:
In the equation -[tex]\frac{3}{4}[/tex]y - [tex]\frac{1}{5}[/tex]y = 380, we can further evaluate the equation into:
-[tex]\frac{19}{20}[/tex]y = 380
To find y, we need to multiply 380 by the inverse of the fraction on the other side, which is -[tex]\frac{20}{19}[/tex]. However, the students multiplied 380 by [tex]\frac{19}{20}[/tex] to get 361. Thus, this was the mistake.
can someone answer this please
Answer:
The coordinates of point P are (1, -1)
Step-by-step explanation:
If the point (x, y) reflected about the x-axis, then its image is (x, -y)To find the image of a point reflected about the x-axis change the sign of its y-coordinateThe rule is R x-axis → (x, -y)If the point (x, y) reflected about the y-axis, then its image is (-x, y)To find the image of a point reflected about the y-axis change the sign of its x-coordinateThe rule is R y-axis → (-x, y)→ Assume that the coordinates of point P are (x, y)
∵ The coordinates of point P are (x, y)
∵ The rule of the reflection is R y-axis (P)
∴ Its image = (-x, y)
∵ The image = (-1, -1)
→ Equate the two images
∴ (-x, y) = (-1, -1)
∴ -x = -1
→ Divide both sides by -1
∴ x = 1
∵ y = -1
∴ The coordinates of point P are (1, -1)
1. When Steve woke up. His temperature was 102o F. Two hours later it
was 3o lower. What was his temperature then?
2. An elevator is on the twentieth floor. It goes down 11 floors and then up
5 floors. What floor is the elevator on now?
3. A deep-sea exploring ship is pulling up a diver at the rate of 25 feet per
minute. The diver is 200 feet below sea level. How deep was the diver
10 minutes ago?
4. If it is 5o outside and the temperature will drop 17o in the next six hours,
how cold will it get?
5. Josie has $47 left on her checking account. If she writes a check for $55,
what will Josie’s balance be?
6. Joe is playing a game with a regular die. If the number that turns up is
even, he will gain 5 times the number that comes up. If it is odd, he will
lose 10 times the number that comes up. He tosses a 3. Express the
results as an integer.
7. It will be – 12o tonight. The weatherman predicts it will be 25o warmer
by noon tomorrow. What will the temperature be by noon tomorrow?
8. The average temperature at the South Pole is – 45o F. The average
temperature on the Equator is 92o F. How much warmer is the average
temperature on the Equator than at the South Pole?
9. Felix reported that the coldest day on record for his town was five times
colder than yesterday’s temperature, –4o C. What was the temperature of
the coldest day on record in Felix’s town?
10. The elevation of Mt. Everest is 29,028 feet. The elevation of the Dead
Sea is –485 feet. What is the difference in the elevation between Mt.
Everest and the Dead Sea?
11. A scuba diver swam 96 feet beneath the surface of the lake. He then
climbs up 49 feet. What is his depth now?
12. The temperature was –3o C last night. It is now –4o C. What was the
change in temperature?
13. While watching a football game, Lin Chow decided to list yardage
gained as positive integers and yardage lost as negative integers. After
these plays, Lin recorded 14, –7, and 9. What was the net gain or loss?
14. Pythagoras was born about 582 BC. Isaac Newton was born in 1643
AD. How many years apart were they born.?
15. Sonny has $75 to spend. The purchase he wants to make requires $93.
If he borrows the extra money that he needs, how much does he need to
borrow?
16. Two golfers completed one round of golf. The first golfer had a score
of +6 and the second golfer had a score of –3. How many more shots
did the first golfer take?
17. What is the balance as a result of having a credit of $84 and a debit of
$29?
18. The freezing point of water is 32o F. Tim added potassium and found
out that the freezing point went down by 8o F. What was the freezing
point of the water with the added potassium ?
19. The city’s budget is $8,000,000. The city actually spends $12,000,000.
What is the city’s deficit?
20. The local movie theater reported losses of $475 each day for three days.
What was the loss for the three days?
Answer:
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Two bottle rockets are simultaneously launched on parallel paths, from 5 feet apart on level ground. After 0.1 second, the rockets are at the same height.
Which theorem or definition can you use to show that the rockets are still 5 feet apart 0.1 second after launch?
Help asap please it's due today :)
Answer:
The definition of parallel lines are lines that have a constant minimum distance between them at any given point along the lines, such that the lines are the same distance apart all through
Therefore, given that we have;
1) The path of the two bottle rockets are parallel,
2) The initial distance between the two rocket on level ground = 5 feet = The perpendicular (shortest) distance between the two rockets
3) The shortest distance between the rockets having the same height moving on parallel path will be constant = 5 feet
4) The height of the two rockets after 0.1 second = Constant = 5 feet
5) Therefore, by the definition of parallel lines, distance between the two rockets which are at the same height after 0.1 second will still be 5 feet
Step-by-step explanation:
Allan manages security at an events center. He works 8 hours per day, 5 days per week. Allan tracks his total pay as a function of hours.Using the table, how much is Allan’s rate of pay?
Answer:
I'm Pretty sure that it is $460.00. 100% sure
Step-by-step explanation:
HAVE A NICE DAY!
Find the area of a circle with a circumference of \blueD{18.84}18.84start color #11accd, 18, point, 84, end color #11accd units.
Answer:
28.26 u²
Step-by-step explanation:
What we know:
A circle has a circumference of 18.84 u.
That means the diameter is 6, and the radius is 3.
The area of a circle can be found with: πr²
3.14(3²)
3.14(9)
28.26 u²
The area of the circle is 28.26 square units when the circumference of circle is 18.84 units.
What is Circle?A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.
The circumference of the circle is 18.84 units
We have to find the area of circle
To find area we need to know the radius
Circumference of circle = 2πr
18.84 = 2πr
18.84 = 2×3.14 r
18.84=6.28 r
Divide both sides by 6.28
r=18.84/6.28
r=3
Now let us find area
Area = πr²
=3.14×3²
=9×3.14
=28.26 square units
Hence, the area of the circle is 28.26 square units when the circumference of circle is 18.84 units.
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Which of the following sets of ordered pairs is a function?
A: (2,1),(2,2),(3.4),(5,6)
B:(-2,-1),(1,2),(3,4),(1,5)
C:(1,2),(2,2),(3,3),(2,4)
D: (1,1),(2,1),(3,2),(4,4)
Answer:
it would be D
Step-by-step explanation:
all other choices have a repeating x value.
A leaky faucet is losing 3 gallons of water in 7 hours. At this rate, how many gallons of water will be lost in 12 hours?
1+1??????????????????????????????????????????
Answer: 2
Step-by-step explanation: 1+1=2
Answer:
1+1=2 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Step-by-step explanation:
Can i have a hand with these math questions?
Answer:
where are the questions????????????
;-; help pleaseeeeee e e e
Answer:
B
Step-by-step explanation:
Because,
t= the amount of money
w= weeks
+ the 15 when she washed the car
help with math? heres the question.
-
answer options:
8
2
5
3
15PTS PLEASE HELP ASAP!
(dont write random answers pls)
look at the pic attached:
Answer:B if two lines are cut by a traversal, then corresponding angles are congruent.
Step-by-step explanation: the corresponding angles theorem proves this.
I need help with this quick question ASAP!
Find the output for f(x) = −3x + 4 when x = −5. Show every step.
Answer:
19
Step-by-step explanation:
-3x+4
-3(-5)+4
15+4
19
Answer:-3x+4
-3(-5)+4
15+4
19
Step-by-step explanation:
You purchase 6 mini burgers and an order of fries for $9.25. If the total cost is $41.71. What is the cost of the mini burger
Answer: $5.24
Step-by-step explanation:
filling in missing values!
Answer:
3C- 19
3A- 10
3F-21
3B-7
3D-3
3E-33
3G-55
Step-by-step explanation:
The price of a holiday was decreased by 12% to £600. What was the price before the decrease?
Give your answer to the nearest penny
Need this ASAP thanks
Answer:
The original price of the holiday was $ 681.81.
Step-by-step explanation:
As the price of the holiday was reduced by 12% to a value of $ 600, it can be said that this price is 88% of its original price (100 - 12). Therefore, to determine the original price of the holiday, it is necessary to perform the following calculation:
88 = 600
100 = X
(100 x 600) / 88 = X
60,000 / 88 = X
681.81 = X
Therefore, the original price of the holiday was $ 681.81.
No need to show work just need answer.
Tuition for one year at a state university is about $13,000. Devon would like to attend this university and will save money each month for the next 4 years. His parents will give him $5,200 for his first year of tuition. Which plan shows the minimum amount of money Devon must save to have enough money to pay for his first year of tuition?
Answer:
$162.50 per month for the next 4 years
Step-by-step explanation:
Here are the options to this question :
Save $270.83 per month for the next 4 years
Save $162.50 per month for the next 4 years
Save $650.00 per month for the next 4 years
Save $108.33 per month for the next 4 years
If Devon's parents would give him $5,200 for his first year of tuition, Devon needs to save a minimum of :
$13,000 - $5,200 = $7,800
If he saves per month for the next four months, he would save 48 times ( 12 months in a year multiplied by 4 years)
The minimum he should save per month = $7800 / 48 = $162.50
