Answer:
It would take 12 hours to get to 480 km.
Step-by-step explanation:
if 120km is 3 hours meaning 40km per hour
that would mean that 40 x 12 = 480
1 hour = 40km
2 hours = 80km
3 hours = 120 km
The area of a rectangular rug is 25.5 square meters. The width of the rug is 3.75 meters. Found the length of the rug by dividing its area by its width. What is the length in of the rug?
Solve the following inequality in the simplest form: 8(−x−2/3)−1≥7
14. 9(y - 4) - 7y = 5(3y - 2
step by step please
Answer:
y=-2
Step-by-step explanation:
9(y−4)−7y=5(3y−2)
(9)(y)+(9)(−4)+−7y=(5)(3y)+(5)(−2)
9y+−36+−7y=15y+−10
(9y+−7y)+(−36)=15y−10
2y+−36=15y−10
2y−36=15y−10
Step 2:
2y−36−15y=15y−10−15y
−13y−36=−10
Step 3:
−13y−36+36=−10+36
−13y=26
divide
/13 /13
y=-2
Answer:
y=-2
Step-by-step explanation:
Simplifying
9(y + -4) + -7y = 5(3y + -2)
Reorder the terms:
9(-4 + y) + -7y = 5(3y + -2)
(-4 * 9 + y * 9) + -7y = 5(3y + -2)
(-36 + 9y) + -7y = 5(3y + -2)
Combine like terms: 9y + -7y = 2y
-36 + 2y = 5(3y + -2)
Reorder the terms:
-36 + 2y = 5(-2 + 3y)
-36 + 2y = (-2 * 5 + 3y * 5)
-36 + 2y = (-10 + 15y)
Solving
-36 + 2y = -10 + 15y
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '-15y' to each side of the equation.
-36 + 2y + -15y = -10 + 15y + -15y
Combine like terms: 2y + -15y = -13y
-36 + -13y = -10 + 15y + -15y
Combine like terms: 15y + -15y = 0
-36 + -13y = -10 + 0
-36 + -13y = -10
Add '36' to each side of the equation.
-36 + 36 + -13y = -10 + 36
Combine like terms: -36 + 36 = 0
0 + -13y = -10 + 36
-13y = -10 + 36
Combine like terms: -10 + 36 = 26
-13y = 26
Divide each side by '-13'.
y = -2
Simplifying
y = -2
Consider the equation 5y=2x+4. Select all the equations that are perpendicular to the given equation.
Answer options in the picture above ^
|
Answer: 5x + 2y = 10, 15x = -6y - 9
Step-by-step explanation: good luck on your algebra Nation test
A pole casts a shadow that is 15 feet long. A 6-foot tall man casts a shadow that is 5 feet long. What is the height of the pole?
Answer: i think the answer to your problem would be 14
Step-by-step explanation: sorry if i'm wrong!
6-5=1
15-1=14
Algebra 2
Please help me solve this.
What is the future value of an annual deposit of $800 earning 6 percent for 15 years
What is the space between two rays with the same endpoint?
Answer:
Two rays that share the same endpoint form an angle. The point where the rays intersect is called the vertex of the angle. The two rays are called the sides of the angle. An angle is also the space between the sides.
Step-by-step explanation:
pls answer this qeustion as soon as possible
The dimensions of this rectangle are 4 units by 3 units
4 units * 3 units = 12 sq units
Screen Shot- Please help- I give Brainliest for correct answer
Answer:
3
1
4
-2
Step-by-step explanation:
imma math mannnnn
Is the sum of √16 and 1.5 rational or irrational?" Justify and explain your answer.
Answer:
Rational
Step-by-step explanation:
The square root of 16 is 4, and 4 + 1.5 is = to 5.5. An irrational number is defined as infinite and never-ending. Since 5.5 is not infinite, we can conclude that it isn't irrational.
What is the surface area of a cube of ice that is 64,000 cubic inches as the volume?
please help, tysm if you do :D
Answer:
[tex]\huge\boxed{x=12}[/tex]
Step-by-step explanation:
If B is the midpoint of line AC, we know that lines AB and BC will be equivalent to each other.
Since we know the measures of AB and BC, we can just set these expressions equal to each other and find the value of [tex]x[/tex].
[tex]6x - 27 = 3(x+3)[/tex]
Let's simplify this equation until we have [tex]x[/tex] on one side of it.
[tex]6x-27=3x+9\\\\6x=3x+36\\\\3x=36\\\\x=12[/tex]
Hope this helped!
3m - 12 =18
Step by step
Answer:
3m=18+12
3m=30
divide both sides by 3
m=10
Answer:
m = 10
Step-by-step explanation:
3m - 12 =18
Add 12 to each side
3m - 12+12 =18+12
3m = 30
Divide by 3
3m/3 = 30/3
m = 10
Residents who live in the city receive power from the city’s power plant. If the city is a square, approximately how wide is the city if the area is 200 square miles?
Let f(x)=5x+4 and g(x)=x^2-7x+12
Perform the function operation f(x)•g(x)
Answer:
Step-by-step explanation:
(5x + 4)(x^2 - 7x + 12)
5x^3 - 35x^2 + 60x + 4x^2 - 28x + 48
5x^3 - 31x^2 + 32x + 48
what is f(7) for the rule of f(x)=-5x+10
Answer:
f(7) = - 25
Step-by-step explanation:
To evaluate f(7) substitute x = 7 into f(x), that is
f(7) = - 5(7) + 10 = - 35 + 10 = - 25
2. It takes 39,090 gallons of water to manufacture a new car. Sammy thinks that rounds up to about 40,000
gallons. Susie thinks it is about 39,000 gallons. Who rounded to the nearest thousand, Sammy or Susie?
Use pictures, numbers, or words to explain.
Answer:
Susie rounded to the nearest thousandth.
Step-by-step explanation:
since the 100th place is 0 it would round down to 39,000 when you are rounding to the nearest thousand.
Find the coordinates of the midpoint of the segment.
MN with endpoints M 6,12) and N(-6, -6)
The coordinates are
Answer:
[tex]MP= (-6,3)[/tex]
Step-by-step explanation:
[tex]MP= (\frac{x_1+x_2}{2} )(\frac{y_1+y_2}{2} )\\MP= (\frac{6+-6}{2} )(\frac{12+-6}{2} )\\MP= (\frac{-12}{2} )(\frac{6}{2} )\\MP= (-6,3)[/tex]
Find the center-radius form of the equation of the circle described and graph it.
center (0, -1), radius 4
Type the center-radius form of the equation of the circle.
(Type an equation. Simplify your answer.)
Answer:
x^2 + (y+1)^2 = 16
Step-by-step explanation:
The equation of a circle is given by the equation (x-h)^2 + (y-k)^2 = r^2, where (h,k) is the center point of the circle.
Therefore, since the center point of the circle and the radius is given, we can just plug the numbers into the formula:
(x-0)^2 + (y+1)^2 = 4^2
x^2 + (y+1)^2 = 16
The required center-radius form of the equation of the circle is x² + (y + 1)² = 16.
What is a circle?The circle is the locus of a point whose distance from a fixed point is constant i.e center (h, k).
Here
The equation of the circle is given by
(x - h)² + (y - k)² = r² - - - - (1)
where h, k is the coordinate of the center of the circle on the coordinate plane and r is the radius of the circle.
Substitute center and radius in equation 1,
(x - 0)² + (y + 1)² = 4²
(x )² + (y + 1)² = 16²
Thus, the required center-radius form of the equation of the circle is x² + (y + 1)² = 16.
Learn more about circle here:
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Express this in standard form 5.4×10^1
Is the following relation a function?
X y
1-2
1-3
2 1
13-2
Yes
NO
Answer:
no, one is repeated which is not possible.
Step-by-step explanation:
Step-by-step explanation:
No. More than 1 element in the domain (1 and 3) have the same image in the co-domain. (-2)
does the point 2,4 lie on the line y=5x-6?
Answer:
substitute value of x and y as 2 and 4
y=5x-6
4= 5*2-6
4=4 so yes
Step-by-step explanation:
The point (2, 4) lie on the line y = 5x-6
What is an equation?An equation is a mathematical statement with an 'equal to' symbol between two expressions that have equal values.
For example, 3x + 5 = 15.
Given that, we need to check whether the point 2,4 lie on the line y=5x-6 or not,
So, the verification of the same, we will simply put the value of x (2) in the equation and see whether we are getting 4 or not, if not then points do not lie on the line, if yes, the point lies on the line.
So, the equation is
y = 5x-6
Put x = 2,
y = 5(2) - 6
y = 10-6
y = 4
Since, we get the value of y = 4, therefore, the point lies on the line.
Hence, the point (2, 4) lie on the line y = 5x-6
Learn more about equation, click;
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6/9, 5/7, 5/6,4/5 What is the lcm of this? Please, please, please help!
you calculate for the LCM of the denominator
9
7
6
5
which Thier Lcm is 630
How do you figure this equation out?
4r + 7 = 35
Answer:
r = 7
Step-by-step explanation:
Step 1: Write out equation
4r + 7 = 35
Step 2: Subtract 7 on both sides
4r + 7 - 7 = 35 - 7
4r = 28
Step 3: Divide both sides by 4
4r/4 = 28/4
r = 7
Solve 4r+7=35
4r=35-7
4r=28
r=7
:)
3. What is the slope of the line x = -5? (1 point)
O Undefined
O 0
O -5
O 5
Answer:
slope is undefined
Step-by-step explanation:
x = - 5 is the equation of a vertical line, parallel to the y- axis.
The slope of a vertical line is undefined.
Find the mode:
3.8, 4.2, 4.0, 4.2, 4.2
Answer:
mode = maximum repeated item
here mode = 4.2
Solve
(1) +3 + 17 = (6) -8 + (-8) =
(2) -81 + (-1) = (7) 23 + (-46) =
(3) 4 + -19 + 25 = (8) -6 + -16 + -3 =
(4) 152 + (-102) = (9) +77 + (-49) =
(5) -400 + (+400) (10) -20 + 90 + 30
Each one please!?
Answer:
1) 21
2) -10
3)10
4)50
5) 3,700
From iOE your friend! :D :P *Your awesome in every way!*
Round 8,542,310 to the nearest million
Answer:
9,000,000
Step-by-step explanation:
Since the 5 next to the 8 is a number with a value of 5 or higher, you can round the 8 up to a 9 thus rounding to the nearest million.
Identify ALL of the constants & coefficients of the following equation:
1/2b-16= -4
Answer:
1/2b=-4+16
1/2b= 12
b=12×2
b=24
Answer:
constants = -16 and -4
coefficients are 1/2
Step-by-step explanation:
a constant is a number not attached to a variable. a coefficient is a number attached to a variable