Step-by-step explanation:
3n-7n-n = 15
5n = 15
n = 15 ÷ 5
n = 3
Step-by-step explanation:
3n−15=7n+n
3n-15=8n
3n-15+15=8n+15
3n=8n+15
3n-8n=8n+15-8n
-5n=15
answer:
n= -3
How many solutions does this equation have? 3s − 8 = 2s
3s - 8 = 2s
First, let's subtract 3s from both sides
-8 = -s
Divide both sides by -1
8 = s
You have one solution which is s = 8
There is only a solution for the given equation 3s − 8 = 2s, s=8.
What is the equation?A mathematical equation is a claim that two expressions, which may contain variables or numbers, are equal. Equations are essential questions, and the main motivations for the development of mathematics have been efforts to methodically find answers to these questions.
It is given that the equation is,3s − 8 = 2s.
In order to find the value of s we have to simplify the given equations by applying the arithmetic operations.
3s - 8 = 2s
3s-2s= +8
s=8
Thus, the number of the solution for the given equation will be 1.
Learn more about the equation here,
https://brainly.com/question/10413253
#SPJ2
point a is at (1 5) and point c is at (-5 -7) find the coordinates of point b on ab such that ac is 6 times as long as ab
Answer:
b=(0,3)
Step-by-step explanation:
A car rental agency intentionally off of the car that can go 304 mile
Answer:
is it complete question if it is not complete give question in comment bar i would try to solve it.
What is the square root of 8?
Answer:
square root of 8 is 2.82842712475
If you meant 8^2 then it would be 64
Step-by-step explanation:
|x-1|+5=2 also this question
Answer:
No solution
Step-by-step explanation:
There are no values of x that make the equation true.
Answer: No solutions
==========================================
Explanation:
Start things off by subtracting 5 from both sides
|x-1|+5 = 2
|x-1|+5-5 = 2-5
|x-1| = -3
We cannot go any further after this point. The result of any absolute value is never negative. The absolute value represents distance from some number to 0. For example, saying |-7| = 7 means -7 is seven units away from 0 on a number line. Negative distance does not make sense.
So going back to |x-1| = -3 makes no sense as well. There are no numbers we can plug in for x to have |x-1| = -3 be true.
The equation |x-1| = -3 has no solutions, so the original equation doesn't have any solutions either.
69. 18 + x = 43
How do you do this ? Please help
Answer:
x=-26.18
Step-by-step explanation:
69.18+x=43
-69.18 -69.18
x=-26.18
Where is the mistake? 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
Answer:
12
Step-by-step explanation:
ds
Answer: There is no mistake
Step-by-step explanation:
1. Frank drives from Adams to Harrison which is a distance of 310 miles. He then travels to Perryton which is 40 miles from Harrison. If it takes him 5 hours to complete the entire trip, how fast is he traveling if he is traveling at a constant rate of speed?
Answer:
70 mph
Step-by-step explanation:
The total number of miles Frank traveled is 350 miles (Adams>Harrison=310, Harrison>Perryton(10)= 350)
350 divided by 5 is 70.
Therefore he was going 70 mph.
:)Hope that helped!
I need help with numbers 4 and 5.
How to write a mixed number in science notation [tex]45\frac{3}{8}[/tex]
Answer:
[tex]4.5375*10^1[/tex]
Step-by-step explanation:
The long division for 3/8 results in getting 0.375, so 45 3/8 is 45.375.
From here, the only thing you can really do is divide it by 10 to get
4.5375 and since you can't divide further, the answer would be
4.5375 * 10^1
please help me solve this problem
Answer:
1/2 im pretty sure
Step-by-step explanation:
Find MP.
MN=17
NP=3y
MP=5y+9
Answer:
[tex] MP = 29 [/tex]
Step-by-step explanation:
Given:
[tex] MN = 17 [/tex]
[tex] NP = 3y [/tex]
[tex] MP = 5y + 9 [/tex]
[tex] MN + NP = MP [/tex] (segment addition postulate)
[tex] 17 + 3y = 5y + 9 [/tex] (substitution)
[tex] 3y = 5y + 9 - 17 [/tex] (subtracting 17 from each side)
[tex] 3y = 5y + 8 [/tex]
[tex] 3y - 5y = 5y - 8 - 5y [/tex] (Subtracting 5y from both sides)
[tex] -2y = 5y - 8 - 5y [/tex]
[tex] -2y = - 8 [/tex]
[tex] y = 4 [/tex] (dividing both sides by -2)
[tex] MP = 5y + 9 [/tex]
Plug in the value of y
[tex] MP = 5(4) + 9 = 20 + 9 [/tex]
[tex] MP = 29 [/tex]
Solve the equation, 4 - (x + 1) = 6.
x = -9
x = 3
x = -3
x = 9
Answer:
x = -3
Step-by-step explanation:
[tex]4-(x+1) =6[/tex]
Distribute the negative
[tex]4 - x - 1 = 6[/tex]
Combine like terms on Left Hand Side
[tex]- x + 3 = 6[/tex]
Substract 3 from both sides
[tex]-x = 3[/tex]
Divide both sides by -1 to get rid of the negative
∴ [tex]x = - 3[/tex]
There are 5.2 x 10^5 words in the English dictionary. What is the average number of words recorded under each of the 26 letters? Give your answer in scientific notation.
Answer:
2.0*10^4
Step-by-step explanation:
[tex]5.2 *10^5[/tex] words
26 categories
[tex]\frac{5.2 *10^5}{26} =\frac{520 000}{26} =20 000[/tex]
[tex]2.0*10^4[/tex]
so there is an average of 2.0*10^4 words per letter
How do you do number 15?
Answer:
11 x 11 = 121
Step-by-step explanation:
11 squared means we must multiply 11 and 11. People often mistaken squared by multiplying a number by two.
Hope this helps!
Find another real number that is between the pair of numbers: 8,10
Answer:
9
Step-by-step explanation:
1, 2, 3, 4, 5, 6, 7, 8, , 10
in the space comes 9!
One of the main reasons why individuals make investments based on their future
financial needs is to do which of the following?
Answer:
Secure a future for upcoming generation
A car traveled 180 kilometers in 3 hours.which stamens bets describes the distance traveled by the car per hour ?
Answer:
the car traveled 60 kph
Step-by-step explanation:
180 km / 3 hours = 60kpm
(not sure if that's how kilometers per hour is written, I am used to miles per hour.)
what is ??? 5(m-n) It’s distributive property and simply it
NEED HELP!!!
Solve each proportion.
Leave your answer as a fraction in simplest form.
Questions in pictures...
Answer:
see explanation
Step-by-step explanation:
(1)
[tex]\frac{6}{2}[/tex] = [tex]\frac{4}{p}[/tex] ( cross- multiply )
6p = 8 ( divide both sides by 6 )
p = [tex]\frac{8}{6}[/tex] = [tex]\frac{4}{3}[/tex]
(2)
[tex]\frac{n}{4}[/tex] = [tex]\frac{8}{7}[/tex] ( cross- multiply )
7n = 32 ( divide both sides by 7 )
n = [tex]\frac{32}{7}[/tex]
(3)
[tex]\frac{5}{3}[/tex] = [tex]\frac{x}{4}[/tex] ( cross- multiply )
3x = 20 ( divide both sides by 3 )
x = [tex]\frac{20}{3}[/tex]
Which expression is equivalent to 21 - (-5) ?
A: 21 - 5
B: -21 + 5
C: 21 + 5
D: -21 - 5
Answer:
C: 21 + 5
Step-by-step explanation:
21 - (-5)
21 + 5
Distribute the '-' into the '-5'. You would get positive 5.
Option C should be the correct answer.
Hope this helps.
Which rational number could be graphed between –3 and –4? A number line going from negative 5 to positive 3 in increments of 1. Negative StartFraction 8 Over 2 EndFraction –3.75 Negative StartFraction 11 Over 4 EndFraction –2.25
Answer:
The answer is B!
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
i did the quiz on E2020
: Consider the distance from the school to the coffee shop and the
distance from the library to the coffee shop. Draw their respective
line segments in the above graph. If the school is relocated in a
way that it is collinear to the coffee shop and the library, and the
distance to the coffee shop is preserved, then the point
representing the school will partition the line segment from the
coffee shop to the library in a x: y ratio. What are the values of x
and y?
Answer:
x = 7 and y = 1
Step-by-step explanation:
Coordinates of Coffee shop = (12, 16)
Coordinates of Library = (16, 8)
School has been shifted to the new position so that distance of school is preserved from the coffee shop.
Coordinates of the new position of school = (15, 10)
Ratio in which distance between coffee shop and library is divided by the location of school is x : y.
If a segment having extreme ends [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is divided into two parts by point (x, y) in the ratio of m : n,
x = [tex]\frac{mx_2+nx_1}{m+n}[/tex]
y = [tex]\frac{my_2+ny_1}{m+n}[/tex]
From the points given in the picture,
15 = [tex]\frac{16x+8y}{x+y}[/tex]
15x + 15y = 16x + 8y
15y - 8y = 16x - 15x
7y = x
[tex]\frac{x}{y}=\frac{7}{1}[/tex]
Therefore, x = 7 and y = 1 will be the answer.
Find x
-x = 7x - 56
Answer:
the answer is 7
Step-by-step explanation:
Add the same term to both sides of the equation
-x=7x-56
−x=7x−56
−x−7x=7x−56−7x
What is the slope of the line ?
Answer:
1
Step-by-step explanation:
Solve for v -4(-5v+3)-v=4(v-3)-9
Answer:
v= -.6
Step-by-step explanation:
-4(-5v+3)-v=4(v-3)-9
20v-12-v=4v-12-9
15v=-9
v=-.6
help pls m? find the QW
Answer:42
Step-by-step explanation:eh i just eyeballed it
Answer:
The answer is d, 23. This is because the whole line is 65, and the part that QW is not is 42. If you want to find QW, subtract 42 from 65, which is 23.
Step-by-step explanation:
4. Simplify the expression: 7r_6+4r + 7 = 5x+r A. 2,5 B. 141 C. 12, + 5+1 D. 124 + 47+1
Answer:
Step-by-step explanation:
7R - 6 + 4R + 7 = 5X + R
A. 2,5
B. 141
C. 12, + 5+1
D. 124 + 47+1
THE ANSWER IS
11R + 1 = 5X + R
pls help me its timed and for a grade I really struggle with this.
Answer:
scalene
Step-by-step explanation:
you can tell by the shape
Midpoint of (-8,7) and (-9,11)
Answer:
(-8.5,9)
Step-by-step explanation:
((-8+(-9))/2=-8.5
(7+11)/2=9
(-8.5,9)
Answer:
(-8.5, 9)
Step-by-step explanation:
use midpoint formula
(-8 + -9) ÷2 , (7 + 11) ÷ 2
-17 ÷ 2 , 18 ÷ 2
-8.5 , 9
so the coordinates of the midpoint are (-8.5, 9)
