18x=2-8
18x=-6
x=-3
that would be my answer if not then ask someone else
Mr. Lyle made a round trip between two cities that were 450 kilometers apart. On the return trip, he increased his average of rate travel by 5 km/h and made the trip in one hour less. Find his rate for each direction.
Answer:
45 km/h
50 km/h
Step-by-step explanation:
Distance traveled in one way = 450 km
Let x = Velocity when he was going to his destination in km/h
He traveled 5 km/h faster when he returned so his velocity was [tex]x+5[/tex]
It took him 1 hour less when he returned so
[tex]\dfrac{450}{x}-\dfrac{450}{x+5}=1\\\Rightarrow x^2+5x-2250=0\\\Rightarrow x=\frac{-5\pm \sqrt{5^2-4\times 1\times \left(-2250\right)}}{2\times 1}\\\Rightarrow x=45,-50[/tex]
So, velocity while going to his destination is 45 km/h
While returning his velocity was 45+5 = 50 km/h.
The value 6 in the number 90,362 is 1/100 , 1/1000, 100, 1000 times the value of 6 in 67,209 , 51,376 ,24,764
Answer:
1000 times greater
Step-by-step explanation:
00,060 vs 60,000 how many times does it move? there's your answer.
hello person could you possibly help me answer this?
Answer:
D
Step-by-step explanation:
Because it is the one that makes sense to me im pretty sure its right
pls help also show your work :) giving brainliest to best answer
Answer:
500
Step-by-step explanation:
125x4=500
(125+125+125+125)
Sorry if it's blurry, I can retake the picture
[tex]\color{plum}\tt\bold{(C) \: 500 \: mi}[/tex]
○=> Steps to derive correct option :Scale of a map :
=> 1 inch = 125 miles
Distance between two cities in map = 4 inches
Actual distance between the two cities :
[tex] =\tt 125 \times 4[/tex]
[tex] =\color{plum}\tt 500 \: miles[/tex]
Thus, the actual distance between the two cities = 500 miles
Therefore, the correct option is (C) 500 mi
whats x equal show work
Answer:
1.71
................
Neil tried to rewrite the expression 5^-6/5^-4
5^-6/5^-4
=
5^-6-(-4) Step 1
5^-2 Step 2
1/5^2 Step 3
Did Neil make a mistake? If so, in which step?
Answer:
0.04
is what the answer should be
Step-by-step explanation:
First 5 terms of 2n^2+4.
Please help!
Answer: 16
Step-by-step explanation:
PLS HELP * 12 POINTS* I WILL MARK BRAINLIEST
Answer:
1.45
2.61
3.33
4.108
5.98
6.82
7.52
8.142
9.36
10.64
Step-by-step explanation:
Use rule that a straight line is 180 and a right angle is 90
Help with this it’s due today.!!!!
Answer:
Right answer is 10 I hope it's helps you
Joanna made a table and a graph for the equation y = 2x.
Did Joanna make these items correctly? Select the true statement.
A.The graph is correct, but the table is not.
B.Both are correct
C.Both are incorrect.
D.The table is correct, but the graph is not.
Answer:
B
Step-by-step explanation:
Help with these both too
1. 3 rows with 21 sneakers
2. D. 11*2
5
Write the equation of the line in slope intercept form given the following:
Slope
intercept (0, -8)
1
5
(Level 2)
Answer:
2388732er
Step-by-step explanation:
What are the zeros of the function below? Check all that apply.
F(X) =(x + 3)(x - 1)/(x-2)(x + 2)
A. 2
B. -2
C. 3
D. -3
E. 1
F. -5
Answer:
-3 and 1
Step-by-step explanation:
The zeros of the given function are -3 and 1.
What are zeros of a function?The zeros of a function, also referred to as roots or x-intercepts, are the x-values at which the value of the function is 0 (f (x) = 0). The zeros of a function can be thought of as the input values that result in an output of 0.
Given is a function f(x) = (x + 3)(x - 1)/(x-2)(x + 2),
We need to find the zeros of the function,
Equate to 0,
(x + 3)(x - 1)/(x-2)(x + 2) = 0
Therefore,
(x + 3)(x - 1) = 0
x+3 = 0 and x-1 = 0
Therefore,
x = -3, x = 1
Hence, the zeros of the given function are -3 and 1.
Learn more about zeros of the function, click;
https://brainly.com/question/16633170
#SPJ7
Please please help will give Brain!!
Answer:
its the last one
Step-by-step explanation:
Consider function f.
4. Identify the domain and range of the relation
{(2,4),(7,-9),(1,4),(3, -6), (8,0)}
Answer:
Domain: (2,7,1,3,8) Range: (4,-9,-6,0)
Step-by-step explanation:
The distance around the earth (circumference) is 4.0074 x 10° centimeters.
Write this in decimal form.
Answer:
4007400000
You move the decimal place to the right 9 places.
Step-by-step explanation:
The required distance around the earth (circumference) in standard form is 40,074,000,000.
What is a number system?A number system is described as a procedure of organizing to express digits. It is the mathematical notation for representing the numbers of a given set by using numbers or other characters in a uniform method. It delivers a special exhibit of every digit and defines the arithmetic structure.
Here,
The number 4.0074 x 10¹⁰ means 4.0074 multiplied by 10 to the power of 10. To convert this number to standard form, we simply need to move the decimal point 10 places to the right.
So the answer in standard form is:
40,074,000,000
Thus, the required distance around the earth (circumference) in standard form is 40,074,000,000.
Learn more about the number system here:
https://brainly.com/question/22046046
#SPJ2
Evaluate 8p +3q-188p+3q−188, p, plus, 3, q, minus, 18 when p=\dfrac12p= 2 1 p, equals, start fraction, 1, divided by, 2, end fraction and q=7q=7q, equals, 7.
Given:
The expression is
[tex]8p+3q-18[/tex]
To find:
The value of the expression when [tex]p=\dfrac{1}{2}[/tex] and [tex]q=7[/tex].
Solution:
We have,
[tex]8p+3q-18[/tex]
Putting [tex]p=\dfrac{1}{2}[/tex] and [tex]q=7[/tex], we get
[tex]8(\dfrac{1}{2})+3(7)-18[/tex]
[tex]=4+21-18[/tex]
[tex]=7[/tex]
Therefore, the value of the expression is 7 when [tex]p=\dfrac{1}{2}[/tex] and [tex]q=7[/tex].
Answer: 7
Step-by-step explanation:
help please PT is the angle bisector of RPS. Find the measure of each indicated angle.
angle: TPS
Angle: RPS
Answer:
tps is 37 and rps is 74. i hope this helps
consider the triangle graphed below. classify it by its angles
A) acute
B) obtuse
C)equiangular
D)right
A tourist ignores the warning signs and leaves food in his car while he goes for a hike. A mama bear and her cub open the car door in six seconds. How long would it take each bear to open the car door alone if the cub needs 9 more seconds than the mama bear?
Answer:
0 sec. I help him get the tourist too :)
Step-by-step explanation:
jk, but her cub takes 13 and the mama 4
Using the together rate, it is found that it would take each bear 9 hours to open the car door alone.
What is the together rate?The together rate is the sum of each separate rate.
In this problem, the rates are as follows:
Together rate: 1/6.Mama's rate: 1/x.Cub's rate: 1/(x + 9).Hence:
[tex]\frac{1}{x} + \frac{1}{x + 9} = \frac{1}{6}[/tex]
[tex]\frac{x + 9 + x}{x(x + 9)} = \frac{1}{6}[/tex]
[tex]x^2 + 9x - 12x - 54 = 0[/tex]
[tex]x^2 - 3x - 54 = 0[/tex]
Quadratic equation with coefficients [tex]a = 1, b = -3, c = -54[/tex], hence:
[tex]\Delta = b^2 - 4ac = (-3)^2 - 4(1)(-54) = 225[/tex]
[tex]x_1 = \frac{-b + \sqrt{\Delta}}{2a} = \frac{3 + \sqrt{225}}{2} = 9[/tex]
[tex]x_2 = \frac{-b - \sqrt{\Delta}}{2a} = \frac{3 - \sqrt{225}}{2} = -6[/tex]
It would take each bear 9 hours to open the car door alone.
To learn more about the together rate, you can take a look at https://brainly.com/question/25159431
NEED HELP FAST THE QUESTION IS: Enter a number into the box so that the equation will have an infinite number of solutions.
Ecuation:4x-8=4x+(THE ANSWER GOES HERE AND THE WRIGHT ANSWER WILL GET BRAINLY.)
Answer:
-8
Step-by-step explanation:
HELPPPPPPPPP I HATE MATH
2 QUESTIONS!!!!!!!!!!!!
14 points
FIRST ONE
|6| - (-14)
SECOND ONE
|-18| + 58
HELPPPPPPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!! AND HURYYYYYY PLSSSSSSSSSSSSSS
Answer:
1. 20 2. 76
Step-by-step explanation:
Answer:
1. -8, 2. 76
Step-by-step explanation:
1. |6| - (-14) it is asking for the absolute number which is 6
is it should be
6 - (-14)
you just add the 6 to the negative 14 because the 6 is positive.
is the answer is -8
2. |-18| + 58 = 18 + 58=
76
what is the answer to -4(2d+3)+2(-d+4)?
Answer:
-10d-4
Step-by-step explanation:
Well, you're in luck because I LOVE distributive property!!!
-4(2d+3) Multiply -4 by 2d to get -8d, and multiply -4 by 3 for -12, so the result would be -8d-12!
Then, 2(-d+4) and therefore 2 times -d (you can just say -1d) to get -2d and 2*4 would be 8 to make -2d+8!
Now you combine them: -8d-12+-2d+8
Combine like terms!
-10d-4 would be your answer.
Please help will give Brain
Answer:
they are not similar because none of the sides have similar ratios
Step-by-step explanation:
12/1 doesnt equal 24/4
Answer:
I believe the answer would be B.....I'm, not 100% sure tho but that's what I'm going with and if you get this wrong because of me then I'm terribly sorry. :(
Step-by-step explanation:
u dont need an explination do you?
4x^2-36 correct factorization
Answer:
4 (x + 3) (x - 3)
Step-by-step explanation:
What is the area of a right triangle 4 centimeters
high with a base of 7 centimeters?
in ∆ABC if <A=56°<=68° find <b plss helpp
I'm assuming you mean that <C=68 degrees.
Now we know that the interior angle of a triangle adds up to 180 degrees.
We just need to subtract the 2 already known angles from it.
180 degrees-56 degrees-68 degrees=180 degrees-124 degrees=56 degrees.
Done!
<B=56 degrees.
Any questions you can ask in the comments, also something to look out for always capitalize your letter when you are writing angles :)!
I need help with this is the last question
Answer:
84 ft2
Step-by-step explanation:
mitochondria is the powerhouse of a cell
What is the value of u?
Answer:
2
Step-by-step explanation:
180 - (105 +37) = 38
38/19 = 2