Answer:
The answer is -5
Answer:
the answer is -5
Step-by-step explanation:
I did this and it was right
The sum of three numbers is 19. Two times the first number increased by six times the second number plus the third number is 12. The sum of three
times the first number and eight times the second number, increased by the third number is -14. If the first number is represented by x, the second
number is represented by y, and the third number is repre d by z, which of the systems of equations below can be used to determine the three
numbers?
Please help due tonight!!
Answer:
Step-by-step explanation:
x+ y+z=19 ...(1)
2x+6y+z=12 ...(2)
3x+8y+z=-14 ...(3)
(2)-(1) gives
x+5y =-7 ...(4)
(3)-(1) gives
2x+7y= -33 ...(5)
multiply (4) by 2
2x+10y=-14 ...(6)
(6)-(5) gives
3y=19
y=19/3
x+95/3=-7
x=7+95/3=(21+95)/3=116/3
from (1)
116/3+19/3+z=19
(116+19)/3+z=19
135/3+z=19
45+z=19
z=19-45=-26
The graph represents the average soccer goals scored for
players of different ages. Determine the domain and range
of the relation in context and explain whether or not this
represents a function.
Answer: domain values : 2, 6, 10, 14 and 18 .
the domain is the player’s age.
the range values are : 2, 3, 4, and 5.
the range is the average goals.
the relation is not a function. the ages 6 and 10 are both paired with two different range values.
Step-by-step explanation:
got it right .
An acorn is falling from 13 feet in the air. If it descends 4.8 feet every second, write and solve an equation to determine how long it will take for the acorn to be 1 foot above the ground. please put the equation and answer please.
Using a linear function, it is found that:
The equation that has to be solved is: [tex]-4.8t + 13 = 1[/tex]It takes 2.5 seconds for the acorn to be 1 foot above the ground.--------------------------------
A linear function modeling the height after t seconds has the following format:
[tex]h(t) = at + h(0)[/tex]
In which:
a is the slope, which is the rate of change of the height.h(0) is the initial height.The acorn is falling from 13 feet, thus [tex]h(0) = 13[/tex]It descends at a rate of 4.8 feet every second, thus the slope is negative, that is, [tex]a = -4.8[/tex]The equation for the height after t seconds is:
[tex]h(t) = -4.8t + 13[/tex]
The acorn is 1 foot above ground when: [tex]h(t) = 1[/tex]Thus:
[tex]h(t) = -4.8t + 13[/tex]
[tex]1 = -4.8t + 13[/tex]
[tex]-4.8t + 13 = 1[/tex]
[tex]4.8t = 12[/tex]
[tex]t = \frac{12}{4.8}[/tex]
[tex]t = 2.5[/tex]
It takes 2.5 seconds for the acorn to be 1 foot above the ground.
A similar problem is given at https://brainly.com/question/22881900
Justin bought 40 packs of baseball cards for a discounted price of $64 if he sells 10 packs of baseball cards to a friend at cost how much should he charge?
Answer:
16$
Step-by-step explanation:
$64/40packs=$1.6 per pack
1.6 × 10 packs =16$
Use the figure to answer the question.
9 cm
10 cm
18 cm
9 cm
4 cm
10 cm
What is the volume of the figure? Enter the answer in the box.
cubic centimeters
Answer:
the correct answer is 30
The question just asks “Find QT” pls help
Answer:
QT = 21
Step-by-step explanation:
Because the left section is technically just a extension of the right triangle, the two triangles (PRQ and SRT) are similar, so the ratio between the sides will be similar as well.
The small triangle (SRT) has a ratio of 8/7 between its top side SR (40) and its bottom side TR (35). This means that the top and bottom side of the triangle PRQ will have the same ratio, and since we already known PR (24+40), we can write an equation to solve for QR:
[tex]\frac{SR}{TR} =\frac{PR}{QR} \\\\\\frac{40}{35}=\frac{64}{?}[/tex]
[tex]\frac{8}{7} =\frac{64}{?}[/tex]
64/8=8
This means so get our unknow length, we will need to multiply 7 by 8.
7*8=56
[tex]\frac{8}{7} =\frac{64}{56}[/tex]
This means that the side QR is 56, and since we know TR is 35, we simply need to subtract 35 from 56 to find QT: 56-35= 21
PS and QT also have the same ratio: 24/21 = 8/7 so we know that this is correct.
Hope this helped!
Solve the inequality. 12(1/2 x -1/3)>8-2x
Answer:
3/2 , and that infinity symbol
I cant get the symbol on here :/
The midpoint of AB is M(0,3). If the coordinates of A are (1, 2), what are the
coordinates of B?
Answer:
B = (-1, 4)
Step-by-step explanation:
M = (A+B)/2
2M -A = B . . . . solve for B
__
B = 2(0, 3) -(1, 2) = (2·0 -1, 2·3 -2)
B = (-1, 4)
brainliest for correct answer please help
Answer:D
Step-by-step explanation:
Help pleasee thank you so much in advance
Answer:
120
Step-by-step explanation:
180 subtract 60 equals 120
Micah is 4 more than twice Angela’s age. The sum of their ages is 40. Set up the problem, Write an equation, Solve the equation, Determine how old Micah and Angela are.
Answer:
Angela is 12 and Micah is 28.
Step-by-step explanation:
So, the problem tells us that Micah is four more than twice Angel's age, and the sum of both their ages is 40. So, if we use a to stand for Angela's age and m to stand for Micah's age, we can safely assume our equation will look like this:
(a × 2) + 4 = m. And once that is figured out, we use a + m = 40.
For right now, we can start just randomly entering in numbers for a. Let's try 10, for example.
(10 × 2) + 4 = 24.
But does 10 + 24 = 40? No, it equals 34. So we go higher.
(12 × 2) + 4 = 28.
Does 12 + 28 = 40? Yes, yes it does.
So we can say with all certainty that Micah is 28 years old, and Angela is 12.
Can you please help me with this math equation?
Answer:
y=-2/3x-1
Step-by-step explanation:
( -3 , -1 ) -1 is the y intercept
Answer:
D.
Step-by-step explanation:
Hope this helps
Irina rode her bike to work at an average speed of 16 miles per hour. It started to rain, so she got a ride home along the same route in her coworker's car at an average speed of 27 miles per hour. If Irina's ride home in the car took 24 minutes (0.4 of an hour), how many hours was her bike ride to work, to the nearest tenth of an hour? 0.2 of an hour 0.4 of an hour 0.6 of an hour 0.7 of an hour
Answer:
0.7 hours
Step-by-step explanation:
The computation of the number of hours is shown below:
As we know that
Time = Distance ÷ speed
where,
Distance is
= 27 miles × 0.4
= 10.8 miles
ANd, the speed is 16 miles per hour
So, the number of hours is
= 10.8 miles ÷ 16 miles per hour
= 0.675 hours
= 0.7 hours
Hence, the number of hours is 0.7 hours
Answer:
0.7 hours
Step-by-step explanation:
Help pleasee , thank you so much in advance
sfsdfsdsdsdgfdgfdgdfignore this!
Answer:
what lol
Step-by-step explanation:
Provide two numbers whose SUM is -18
Answer:
-27 + 9 provides the answer -18
Answer:
-31+13=18
that should also get you that answer
Which graph represents the absolute value of –3? A number line going from negative 5 to positive 5. The distance from negative 3 to 0 is labeled 3. A number line going from negative 5 to positive 5. The distance from 0 to 3 is labeled negative 3. A number line going from negative 5 to positive 5. The distance from negative 3 to positive 3 is labeled 6. A number line going from negative 5 to positive 5. The distance from negative 3 to 3 is labeled negative 6.
Answer:
ITS A
Step-by-step explanation:
The number line that will represent the absolute value will be-
the distance from negative 3 to 0 is labeled 3.
What is absolute value of a number?The absolute value of a number is the magnitude of number. Absolute value describes the distance from zero that a number is on the number line, without considering direction.
We have a graph represents the absolute value of –3.
For a number [x], such that [x] < 0, the absolute value would be -
v[a] = -x
So, for x = -3, the absolute value would be 3.
The number line that will represent the absolute value will be -
The distance from negative 3 to 0 is labeled 3.
Therefore, the number line that will represent the absolute value will be-
the distance from negative 3 to 0 is labeled 3.
To solve more questions on number line, visit the link below-
https://brainly.com/question/24402764
#SPJ2
These two triangles are scaled copies of one another.The area of the smaller triangle is 9 square units. What is the area of the larger triangle?
Answer:
Step-by-step explanation:
9
Answer:
The answer is 36
Step-by-step explanation:
Times the 6 to get the area
It’s about functions please help and show work.
Answer:
f(-6) = -2
Step-by-step explanation:
plug in k value (-6)
f(-6) = -6/2 + 1
theres two ways to solve for this
one way:
convert the whole number 1 to an improper fraction
f(-6) = -6/2 + 2/2
combine like terms
f(-6) = -4/2
divide -4 by 2
f(-6) = -2
second way:
divide -6 by 2
f(-6) = -3 + 1
combine like terms
f(-6) = -2
either way you get the same answer
use whichever is easiest for you
U=xk-x, solve for x. Does the x have to be by itself. Or will the answer be u/k=2x
Answer: x=[tex]\frac{U}{(k-1)}[/tex]
Step-by-step explanation:
Isolate x from xk-x that is, factorize x and you have U=x(k-1)
Then divide both sides with (k-1) and you get [tex]x=\frac{U}{(k-1)}[/tex]
Company A charges $50 per month plus
$0.05 per minute. Company B has no
monthly charge but charges $0.15 per
minute. When is the charge for the
companies the same?
IDEK but u fine hml
explanation:
u cute
Ben puts up a pretzel cart outside Newport mall22 cinnamon pretzels and few salted pretzels were up for sale in the morning. One half of the total pretzels were sold out and 19 pretzels remained. How many salted pretzels did Ben bake that morning?
Answer:
he baked 30 pretzels 8 was salted
The length of a floor is
4m 44 cm and the
breadth is 3m 30 cm.
What is the maximum
length of square tiles
that can completely
cover the floor?
Susan is looking to hire a cleaning company to clean her house every week. One cleaning company's cost can be calculated by the expression 75 + 50x, where x is the amount of hours they spend cleaning. Another cleaning company's cost can be calculated using the expression 50 + 75x. Susan wants to know how long each company will have to clean to cost the same amount. Group of answer choices 1 hour 2 hours the will never equal the same 7.5 hours
Answer:
A. 1 hourStep-by-step explanation:
If one cleaning company's cost can be calculated by the expression 75 + 50x, where x is the amount of hours they spend cleaning and another cleaning company's cost can be calculated using the expression 50 + 75x, then to calculate how long each company will have to clean to cost the same amount, we will equate both expression of the company cost and solve for x as shown;
On equating:
75 + 50x, = 75x + 50
collect like terms'
50x-75x = 50-75
-25x = -25
divide both sides by -25
-25x/-25 = -25/-25
x = 1
hence the number of hours each company will have to clean to cost the same amount is 1 hour
HELP ME BRUV PLEASE
Answer:
On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning
is 0.9 greater,least than, or equal to 95%
Answer:
Less
Step-by-step explanation:
Answer:
if 1 represents 100% then it would be less than
Step-by-step explanation:
that would make the .90 90% and thus less than 95%
Determine the range of the following graph!
Answer:
[-11,11)
Step-by-step
the closed bracket is the dot, and the open dot is the round bracket.
the line on it goes down.
I hope it helps
What are the slope and the y-intercept of the line shown in the graph?
A.
y-intercept = 2 and slope = -3
B.
y-intercept = 2 and slope = 3
C.
y-intercept = 3 and slope = 2
D.
y-intercept = -3 and slope = 2
A fisherman caught 10 fish in one month. Their weights, in pounds, are shown below.
8, 12, 16, 17, 22, 24, 29, 38, 45, 74
Which box plot best summarizes the data?
Answer: A.
Step-by-step explanation:
Why is 4 + (-3) equal to 1?
Answer:
[See Below]
Step-by-step explanation:
[tex]Hey~There![/tex]
________________________
➜ Solve:
[tex]4+(-3)=1[/tex]So with this problem technically your subtracting because of the [tex]-3[/tex].________________________
So based on our work above we can conclude that the equation is equal because when solve it equals [tex]1[/tex], making [tex]1=1[/tex].
________________________
[tex]Hope~this~helps~Mate!\\-Your~Friendly~Answerer,~Shane[/tex] ヅ