Step-by-step explanation:
the car went 25 meters in 1 second.
that creates this ratio 25 m/s or
formally fully correct 25/1 m/s.
to get the speed in km/h we need to bring the denominator of that ratio from 1 second to 1 hour.
we do that by multiplying it by 3600, as there are 3600 second in 1 hour.
to keep the overall value of the ratio we need to multiply also the numerator with the same factor.
so,
25/1 × 3600/3600 = (25×3600)/3600 =
= 90000 meters /1 hour
how many km (kilometers) are 90000 meters ?
1 km = 1000 m
so,
90000 m = 90000/1000 km = 90 km
therefore, or full answer is
the car's speed was 90 km/h.
Rewrite each equation in slope-intercept form.
1. 3x + 5y = 12
2. 5x – 4y = 6
3. y = 5x + 3
4. y =1/2 x – 8
guys pls help me!!!!!!
Answer:
136 degrees
Step-by-step explanation:
136 degrees + 44 degrees = 180 degrees
Answer:
x = 136 degrees
Step-by-step explanation:
180 - 44 = 136
Both angles are supplementary
MATH HELP PLEASE!!
6. Solve
3X+10 is greater than or equal to 4
Answer:
Step-by-step explanation:
Answer:
x ≥ - 2
Step-by-step explanation:
3x + 10 ≥ 4 ( subtract 10 from both sides )
3x ≥ - 6 ( divide both sides by 3 )
x ≥ - 2
BRAINLIEST ASAP! help pls
9)Jason drove 20 miles in 2 hours.How many
miles did Lisa drive in one hour?
10) How many hours did Jason take to drive one
mile?
Answer:
10 min. to drive one mile
Step-by-step explanation:
hope this helps
HELP ASAP! Pls and thx! Need help.
Answer:
y = -3x + 22
Step-by-step explanation:
To find m, find the change in y and divide it by the change in x.
For example, the change in y between 19 and 13 is -6. Then determine the change in x. For example, since we determined the change in 19 and 13, let's look at the change in the x coordinates that pair with 19 and 13: 1 and 3. The change in x between 1 and 3 is 2. Now divide the change in y by the change in x: -6/2 = -3. So now we have the equation y = -3x + b, but we still need to figure out b, or the y-intercept. To do this, we need to figure out a pattern in the table to find out what y is equal to when x = 0, the definition of a y-intercept. From just the table alone, it looks like for every 2 units the x-coordinate decreases, the y-coordinates increases by 6. We could also just as easily say that for every 1 unit the x-coordinate decreases, the y-coordinate increases by 3. From this definition, if we look at the coordinate (1, 19), if we were to decrease 1 from the x-coordinate, we would have to increase the y-coordinate by 3 which we can write as (x - 1, y + 3). So, we would get (0, 22). So, when x = 0, y = 22.
Write 77^1/10 in the form
n√77 where n is a whole number.
Answer:
[tex]\sqrt[10]{77}[/tex]
Step-by-step explanation:
[tex]77^\frac{1}{10}[/tex] is the same as [tex]\sqrt[10]{77^1} ,[/tex] or simply [tex]\sqrt[10]{77}[/tex]
77^1/10 can be written as [tex]\sqrt[10]{77}[/tex]
what is representation of root?The principal nth root of a is written as n√a , where n is a positive integer greater than or equal to 2. In the radical expression, n is called the index of the radical.
A radical symbol √ is used to represent a square root; the number or expression included within the radical symbol, designated by the letter a below, is known as the radicand.
We have that [tex]77 ^ {1/10}[/tex].
Now, if we have given that √4 we can write it as [tex]\sqrt[2]{4}[/tex]
Again, if we have [tex]7^{1/3}[/tex] we can write it as [tex]\sqrt[3]{7}[/tex]
Similarly we can write 77^1/10 as [tex]\sqrt[10]{77}[/tex]
Learn more about root representation here:
https://brainly.com/question/17595336
#SPJ2
what is 6xy . 12 over x 100 over 6
Could anyone help please
Answer:
T=.25k+.97t
This is because you 25 cents of gas is multiplied by k, which leaves the other section of the equation.
You move left 6 units. You end at (-4, 4). Where did you start?
(you need a coordinate plane)
Answer:
(2,4)
Step-by-step explanation:
Step 1: Understand the question
We know moving left DECREASES the x value and moving right INCREASES the x value.
We need to move 6 units back to the right to get the original coordinate
Step 2: Solve
(-4 + 6, 4)
(2, 4)
Step 3: Therefore statement
Therefore you started at (2, 4)
A sample of a radioactive isotope had an initial mass of 650 mg in the year 1994 and
decays exponentially over time. A measurement in the year 1996 found that the
sample's mass had decayed to 570 mg. What would be the expected mass of the
sample in the year 2005, to the nearest whole number?
Answer:
316
Step-by-step explanation:
I got the question wrong and it gave me this answer lol
IF YOU KNOW HOW TO DO THIS PLEASE PLEASE HELP YOUR GIRL OUT!!
Explain the steps necessary to solve the following multi-step equation. Include the final solution as part of your submission and explain how
you verified that the solution is correct.
–5(1 – 5x) + 5(–8x - 2) = -4x – 8x
Answer: x = -5
-------------------------------------------------------------------------------------------------------------
Step-by-step explanation:
Let's solve your equation step-by-step.
−5(1−5x)+5(−8x−2)=−4x−8x
-------------------------------------------------------------------------------------------------------------
Step 1: Simplify both sides of the equation.
−5(1−5x)+5(−8x−2)=−4x−8x
(−5)(1)+(−5)(−5x)+(5)(−8x)+(5)(−2)=−4x+−8x(Distribute)
−5+25x+−40x+−10=−4x+−8x
(25x+−40x)+(−5+−10)=(−4x+−8x)(Combine Like Terms)
−15x+−15=−12x
−15x−15=−12x
-------------------------------------------------------------------------------------------------------------
Step 2: Add 12x to both sides.
−15x−15+12x=−12x+12x
−3x−15=0
-------------------------------------------------------------------------------------------------------------
Step 3: Add 15 to both sides.
−3x−15+15=0+15
−3x=15
-------------------------------------------------------------------------------------------------------------
Step 4: Divide both sides by -3.
−3x /−3 = 15/ −3
x=−5
-------------------------------------------------------------------------------------------------------------
Answer:
x=−5
Source: https://www.mathpapa.com/algebra-calculator.html
, Hope this helps
Have a great day!!
What is the measure of angle "K" in the triangle pictured
below:
Answer:
K = 30°
Step-by-step explanation:
K = 180 - (35+115)
K= 180 - 150
K =30
Find the equation of the line that passes through the point (4,13) and is perpendicular to the equation below.
y = 4x - 6
Is 7 a factor of 49r + 7?
yes
no
Answer:
yes
Step-by-step explanation:
49r+7
7(7r+1)
7*7=49
7+1=7
Each floor of a doll house is 12.5 inches tall. If the height of the doll house is 75 inches, how many floors does the doll house have? You must show your work help please
[tex]\bigstar\boxed{\large\bf{\leadsto 6\:floors}}[/tex]
⠀⠀━━━━━━━━━━━━━━━━━━━━━━━━━━━━⠀⠀
[tex]\begin{gathered}\rm{ \underline{ \underline{ \red{Given}}}}\begin{cases}\sf{height\:of\:one\:floor\:of\:dollhouse =12.4\:in} & \\ \\\sf{Height\:of\: dollhouse=75\:in}&\end{cases}\\\\\end{gathered} [/tex]
To find :Total number of Floors in dool house➜ Therefore , Total number of floors can be find out by dividing the total height of dollhouse by the length of one floor
[tex]\bf{=\cancel{ \dfrac{75}{12.5}}}[/tex]
[tex]\bf{= 6}[/tex]
⠀⠀━━━━━━━━━━━━━━━━━━━━━━━━━━━━⠀⠀
Scott is a painter who is paid a normal rate of $36.80 per hour plus a height allowance of $21 per day. If Scott works 9 hours per day for 5 days on a tall building, calculate his total earnings.
Answer:
$1761
Step-by-step explanation:
9*5=45
36.80*45=1656
21*5=105
1656+105=1761
PLEASE HELP URGENT SORRY FIR QUILTY
Answer:
-25
Step-by-step explanation:
[tex]-15/\frac{3}{5}[/tex] [tex]-15 * \frac{5}{3}[/tex] [tex]\frac{-75}{3}[/tex] [tex]-25[/tex]Use long division to divide (6x^2 - 39x -21) / (x -7)
Answer:
How do you divide
x
4
+
2
x
3
+
15
x
2
+
6
x
+
8
x
−
4
?
Algebra Division of Polynomials
1 Answer
Alan P.
Jun 13, 2017
x
4
+
2
x
3
+
15
x
2
+
6
x
+
8
x
−
4
=
x
3
+
6
x
2
+
39
x
+
152
Remainder:
616
Explanation:
Do this division either using "synthetic division" or "long division"
synthetic division
x
4
x
3
x
2
x
1
x
0
usually omitted
1
2
15
6
8
the coefficients
+
−−−
|
−
0
−
4
−
24
−−
146
−−−
608
−−−
product of prior row 3 value and
x
's zero
4
|
1
6
39
152
616
the 4 is the value of
x
that would make the denominator
=
0
x
3
x
2
x
1
x
0
R
again, this is usually omitted
Express the ratio as a fraction in simplest form. 10 yards to 10 feet
Answer:
3:1 should be the ratio.
Step-by-step explanation:
I have been wondering this question for quite some time. What is 87 - 45x /3
Answer:
-48
Step-by-step explanation:
we are going to say. 87-45x3=_48
[tex]-10n-8=-9n[/tex]
Answer:
[tex] - 10n - 8 = - 9n \\ - 10n + 9n = 8 \\ - n = 8 \\ n = - 8 \\ thank \: you[/tex]
Answer:
[tex] - 10n - 8 = - 9n \\ - 10n + 9n = 8 \\ - n = 8 \\ \boxed{n = - 8}[/tex]
n = -8 is the right answer.Suppose you need to put a fence around a rectangular garden that has a perimeter of 64ft. The width is 12ft less than the length. Find the width and length of the garden.
Answer:
x=length
x-12=width
you techinally have to count 2 lengths and 2 widths.
2x + 2x - 24= 64
4x = 88
x = 22
so the length is 22 and the width is 10
Which one of the following graphs best represents the equation shown?
y = -x^2 + 3
Show that 3650 is not a perfect square.
Answer:
A number that is a perfect square never ends in 2, 3, 7 or 8. If your number ends in any of those numbers, you can stop here because your number is not a perfect square. Obtain the digital root of the number. The digital root essentially is the sum of all of the digits.
Step-by-step explanation:
hope this helps you super sorry if it does not
Answer:
3650 is not a perfect square as it equals 60.415229868
Step-by-step explanation:
Are the triangles similar or congruent
similar!
congruent means they are the exact same shape.
will give correct answer brainliest
Answer:
2. Division property of equality
3. x+1 = -4
4. Subtraction property of equality
5. x = -5
Step-by-step explanation:
The equation 4 ∙ 5 = 5 ∙ 4 demonstrates the ________property of multiplication.
Answer:
The equation 4 ∙ 5 = 5 ∙ 4 demonstrates the Commutative property of multiplication.
Step-by-step explanation:
Commutative property is A × B = B × A
So the equation 4 ∙ 5 = 5 ∙ 4 is same as commutative property
Answer:
The equation 4 ∙ 5 = 5 ∙ 4 demonstrates the commutative property of multiplication.
Step-by-step explanation:
The commutative property means that the positions of the numbers on each side of the equation can be swapped and both sides would be equal.
You can think of it as A x B = B x A
Given m
Il n,
n, find the value of x and y.
35°
Answer:
x = 145, y = 35
Step-by-step explanation:
so y is equal to 35 because alternate interior angles are equal to each other (you can search this up if you're confused) and x = 145 because of supplementary angles so I did 180 - 35 = 145. hope this helps!
Right answer gets brainlyest
Answer:
Answer A
Step-by-step explanation:
hope this helps uwu