Answer: [tex]\frac{170}{X}[/tex]+[tex]\frac{170}{X-9}[/tex]=2
(=)17 0x +170x+1530=2x²+18x
(=)-2 x² +322x+1530=0
Δ=b²-4ac
Δ=115924
[tex]\sqrt{}[/tex]Δ=340,476>0
because Δ>0 so that 2 X
=>x₁=2 (true), x₂=-161(false)
X+9= 2+9=11
first travel 2 mi/hr
second travel 11 mi/hr
Step-by-step explanation:
find the vaalue of x 3x+ y+ 2z= -10 x+5y+2y+2z= -12 -2x+3y= -1
x+7y+2z=−12
I'm not 100% sure though
Plz Help! A B C or D. I already pressed one but I dont know which one
Answer:
D. y = 50Step-by-step explanation:
Both of the points have same y- coordinate of 50.
It means the slope is zero and the line is parallel to the x- axis.
The line has equation:
y = 50Correct choice is D
Slope
m=50-50/25+25m=0Points are parallel
Equation
y=50guy pls help me!!!!!
If a horse runs 3/4 km in a minute, how many kilometers will the horse run in 7 minutes?
What is the missing integer?
Answer:
The answer would be negative 1
Answer:
-1+3=2
Step-by-step explanation:
answer:-1
Find what % of 54 is 6
Answer:
11.11%
Step-by-step explanation:
6/54 x 100
=11.11
how do you solve this and what is the answer?
y-3=5/2(x-3)
Please look at the pic if im wrong please let me and show me where i was incorrect from my math.Thank you.Btw when i was trying to solve the problem I noticed that there was 2 miles left then i didn't know what to do.
Answer:
294
Step-by-step explanation:
divide 84 by 4 to get how many miles they travel per hour, then multiply by 14 hours
Answer:
294
Step-by-step explanation:
first you will multiply 84 by 14 and divide by 4
Please help me with this PLEASE
Answer:
The slope is 5/3
Step-by-step explanation:
-3 over to 0 is 3, so you get the run.
-2 up to 3 is 5, so you get the rise.
Slope is rise over run, which gives the answer of 5/3.
Good luck!
|8w+5|=21
please show work
Answer:
w=-13/4
w=2
Step-by-step explanation:
|8w+5|=21
Step by step solution :
STEP
1
:
Rearrange this Absolute Value Equation
Absolute value equalitiy entered
|8w+5| = 21
STEP
2
:
Clear the Absolute Value Bars
Clear the absolute-value bars by splitting the equation into its two cases, one for the Positive case and the other for the Negative case.
The Absolute Value term is |8w+5|
For the Negative case we'll use -(8w+5)
For the Positive case we'll use (8w+5)
STEP
3
:
Solve the Negative Case
-(8w+5) = 21
Multiply
-8w-5 = 21
Rearrange and Add up
-8w = 26
Divide both sides by 8
-w = (13/4)
Multiply both sides by (-1)
w = -(13/4)
Which is the solution for the Negative Case
STEP
4
:
Solve the Positive Case
(8w+5) = 21
Rearrange and Add up
8w = 16
Divide both sides by 8
w = 2
Which is the solution for the Positive Case
STEP
5
:
Wrap up the solution
w=-13/4
w=2
what is the slope of a line b perpendicular to line a with equation y=7x-9
Answer:
The slope of line b would be -1/7.
Step-by-step explanation:
This happens because if you have the slope of any line and are trying to find the perpendicular line to said line, the slope of the perpendicular line will always be the opposite reciprocal of the original slope.
Then, all you need to do is find some points and graph the lines.
PLEAS EHELP ME I AM BEGGING YOU!!!!!!! EXTRA POINTS AND BRAINLIEST
1. v= 0.013m/s
t = 60 seconds
d = v×t
= 0.013×60
= *0.78 m*
2. v= 17.6 m/s
d= 100m
t = d/t
= 100/17.6
= *5.68 s*
In the year 2015 Emily was three times as old asKaitlin. By the year 2021 Kaitlin will be half asold as Emily will be. How old was Emily on theyear 2000?
In 2000 Emily was 9 years old.
Given that in the year 2015 Emily was three times as old as Kaitlin while by the year 2021 Kaitlin will be half as old as Emily will be, to determine how old was Emily on the year 2000 the following calculation must be performed:
2015 = E = 3K 2021 = E = 2K 24 /// 8 --- 30 /// 14 18 /// 6 --- 24 /// 12 18/6 = 3 24/12 = 2 2015 = Emily was 24 years old 24 - (2015 - 2000) = X 24 - 15 = X 9 = X
Therefore, in 2000 Emily was 9 years old.
Learn more in https://brainly.com/question/20025195
y-6=-4(x+4) show steps.
Answer:
y = -4x - 10
Step-by-step explanation:
y-6=-4(x+4)
1: distributive property
y-6= -4x - 16
2: add 6 both sides
y = -4x - 10
m/_GFN = 4x+10, m/_NFE= 14x+3, and m/_ GFE=157°. Find m/_NFE. PLEASE EXPLAIN Thoroughly!!
Answer:
4x+10+14x+3=157
18x+13=157
18x=157-13
18x = 144
X = 144 /18
X= 8
NFE= 14x+3
= 14(8)+3
=112+3
=115
Step-by-step explanation:
Felix buys 5 kilograms of corn tortilla chips. How much does he spend?
Answer:
$10
Step-by-step explanation:
5 times $2 equals $10
Answer:
$10
Step-by-step explanation:
Each kg of corn tortilla chips: $2
5 kgs of corn tortilla chips: 5*2
= $10
Hope this helps and have a wonderful time ahead at Brainly! :D
The pet boarder keeps a dog to cat ratio of 5:2. If the boarder has room for 98 animals, then how many of then can be dogs?
help with the top one please?
Answer:
30 pages per hour.
Step-by-step explanation:
Okay so they read 1 1/2 pages per hour right. And you need 20/20 to make 1 hour right. So all you have to do is multiply 1 1/2 by 20 and you got your answer.
which angles are alternate interior angles
Answer:
2nd
Step-by-step explanation:because
What do you add to
2 1/5 to make 5
Answer:
Another 2 1/5
Step-by-step explanation:
2.5 + 2.5 = 5.0 (You don't have to put the .0)
Another example would be:
5.5 + 5.5 = 11.0 (Again, you do not have to put the .0)
- Hope this helps (:
pls help! reporting fake answers!! :)
Answer:
for #1... 5 cups of yellow paint
Step-by-step explanation:
plsssssssssssssss helppppppppppppppppppppp
Answer:
It would be (2,8)
Step-by-step explanation:
x goes up by 1 and y goes up by 2
N = d + h + z
7
for h
A. h = 7(N - d-z)
c. h = 7N â€" 4 â€"z
B. h = 7N + 7d + dz D. h = 7N + d + z
Answer:
I prefer A is the option that suits this question
what is the numerical expression for 3 - 0 x 5 - 0 ?
I gotten this question before the answer is 3
Planes T and X are parallel. Plane T contains like a. plane x contains line b
Answer:
c lines
Step-by-step explanation:
5) A rectangular piece of paper is 10cmn long and 5cm broad.find its area,
A car rental agency advertised renting a car for $ 26.95 per day and $ 0.28 per mile. if brad rents this car for 3 days, how many whole miles can he drive on a $ 250 budget?
Answer:222.38
Step-by-step explanation:26.95x0.28 x3
Answer:
604 miles
Step-by-step explanation:
he has to pay 80.85 for 3 days (26.95 x 3)
250 - 80.85 = 169.15 (money left)
169.15 ÷ 0.28 = 604 (with many decimals)
604 whole miles
linear or non linear?
Answer:
non linear
Step-by-step explanation:
when you graph it, the line is a zero slope
A local foundation organized a lunch party for all the kids in the community. They ordered a total of 500 burger meals. They ordered plain burgers at $1.75 each cheeseburgers at $2.50 each, and chicken burgers
at $3.20 each. They ordered mostly cheeseburgers, and 100 fewer chicken burgers than plain burgers. The total order came to $1.172.50.
Define the variables and write a system of equations to represent the
situation.
9514 1404 393
Answer:
x + y + z = 5002.50x +1.75y +3.20z = 1172.500x +y -z = 100Step-by-step explanation:
Let x, y, z represent the numbers of cheeseburgers, plain burgers, and chicken burgers ordered for the party.
We have three relations given. Each can be used to write an equation.
x + y + z = 500 . . . . . . . . . a total of 500 meals were ordered
2.50x +1.75y +3.20z = 1172.50 . . . . . the total cost
0x +y -z = 100 . . . . . . . . . . 100 fewer chicken were ordered than plain
_____
Additional comment
We put the coefficient of x as 0 in the last equation to facilitate writing this system as an augmented matrix.
[tex]\left[\begin{array}{ccc|c}1&1&1&500\\2.50&1.75&3.20&1172.50\\0&1&-1&100\end{array}\right][/tex]
The solution is (x, y, z) = (300, 150, 50).
Sally paid $3.50 for 7 apples.
Answer:
each apple costs 50 cents
Step-by-step explanation:
3.50/7=0.50