Answer:
x = 33.5Step-by-step explanation:
Simplifying
(x + 7) * 2 = 81
Reorder the terms:
(7 + x) * 2 = 81
Reorder the terms for easier multiplication:
2(7 + x) = 81
(7 * 2 + x * 2) = 81
(14 + 2x) = 81
Solving
14 + 2x = 81
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-14' to each side of the equation.
14 + -14 + 2x = 81 + -14
Combine like terms: 14 + -14 = 0
0 + 2x = 81 + -14
2x = 81 + -14
Combine like terms: 81 + -14 = 67
2x = 67
Divide each side by '2'.
x = 33.5
Simplifying
x = 33.5
Answer:
x=16,−2
Step-by-step explanation:
8. Two pedestrians walk from opposite ends of a city block to a point on the other side of the street.
The angle formed by their paths is 125 degrees. One pedestrian walks 300 ft and the other walks
320 ft. How long is the city block to the nearest foot?
Answer: 135.606 m
Step-by-step explanation:
Try using the law of cosine because if you draw the picture of the triangle out then you see it’s a SAS triangle
so in this case:
C squared equals 320 squared plus 300 squared minus 2 times 320 times 300 times cosine 25
Rachel finished a meal at a diner and received a bill for $10.99. She charged the bill along with a 15 percent gratuity to her credit card. What is the total amount she charged to her credit card? Round to the nearest cent if necessary.
A. $11.14
B. $12.64
C. $13.19
D. $13.73
Answer:
12. 64
Step-by-step explanation:
total = 10.99 + (10.99*.15)
total = 10.99 *1.15
total =12.6385 = $12.64
A cone has a radius of 5 cm and a height of 9 cm. What is the volume of the cone to the nearest whole number? Use 3.14 for pi.
Answer:
235or 236
Step-by-step explanation:
A cone has a radius of 5 cm
a height of 9 cm
Volume of cone =1/3πr^2h
=1/3×3.14×5×5×9
= 3.14×25×3
=3.14×75
=235.5
=235or 236 is the answer
Plz Help !!!!!!!!A line goes through the points (7, 3) and (–1, 5). Write the equation of the line in slope-intercept form. Show your work for full credit. (How did you go from those two points to having the equation in slope-intercept form? Or, how did you go form having the equation in point-slope form to slope-intercept form?) Circle your answer.
Answer:
1/-4 Rise over run. So 1 would be your rise then the 4 is negative you would fall down 4.
Step-by-step explanation:
Well you would have to do the equation y2-y1 over x2-x1. You go from having two points to having it in sloe-intercept form becuase of your equation y2-y1 over x2-x1.
system by elimination
2x - y = -3
-2x - 8y = 12
Answer:
x= -2 y= -1
Step-by-step explanation:
stack the 2 equations on top of each other and add them together
the 2x and -2x cancel out and you are left with -9y=9
this gives you y= -1
you plug the y value into one of the equations:
2x - (-1) = -3
2x+1 = -3
2x= -4
x= -2
Matthew is starting his own landscaping business. Matthew thinks he can
charge $10.50 per hour. If he knows he will only be able to work 120 hours
per month (that's 30 hours per week), how much money will he earn each
month?
Answer:
1,260
Step-by-step explanation:
Multiply how much you get by the hours. Hope this helps!
What is the measure of angle K, L and M?
HELP PLEASE
Help me please .........:::
HELP ME PLZ IM SLOW AS HELL
Answer:
[tex]y=40x+20[/tex]
Step-by-step explanation:
Hey Guys points
Have a nice afternoon
i will do bigger givaways later ok?
Answer:
ok thx m8
Step-by-step explanation:
Answer:
m
Step-by-step explanation:
Evaluate the function for X = -2, 0, and 5.
f(x) = -5x + 2
f(-2) =
f(0) =
f(5) =
Pls help meit would mean everything!!!!
Answer:
f(-2) 12
f(0) 2
f(5) -23
Help me please .........
Step-by-step explanation:
i need the equation from the first question
Isabela tem dois dados de um jogo, conforme a figura a seguir: O dado 1 é numrado de 1 a 6 e o dado 2 é numerado de 1 a 8. Isabela lançou os dois dados simultaneamente. A probabilidade de que a soma obtida pelos dois números sorteados seja maior que dez é de, aproximadamente: A) 14% B) 15% C) 21% D) 27% E) 29%
Responda:
C) 21%
Explicação passo a passo:
Dado que:
Dado 1: rotulado de 1 - 6
Dado 2: rotulado de 1 - 8
Espaço amostral :
8 * 6 = 48
Probabilidade = resultado necessário / resultados possíveis totais
Resultado necessário = soma maior que 10 = 10
Resultados totais possíveis = 48
P (soma> 10) = 10/48
P (soma> 10) = 0,208333
20,8333 * 100%
= 20,833%
= 21%
Lori bought a shirt and a hat at a half off sale and she spent a total of 21$ if the shirt was originally 24 how much was the original price of the hat
Step-by-step explanation:
$21
Let the amount Lori bought the shirt and the hat be $x, if she bought them at half off sale, the initial price of both item will be 2 × $x
If she spent $21 on both items, the initial price will have been 2 x $21 = $42 where x is $21
Original price of the hat and shirt is therefore $42. Since both are on half off sale, the initial price is the hat will be $42/2 = $21
What is an equivalent expression for 3x+5x-1
Answer:
8 x - 1
Step-by-step explanation:
Equivalent expressions are expressions that work the same even though they look different. If two algebraic expressions are equivalent, then the two expressions have the same value when we plug in the same value(s) for the variable(s).
(HOW DO YOU SOLVE EQIVALENT EXPRESSIONS)
Answer:
8x-1
Step-by-step explanation:
3x+5x=8x
8x-1
You add up the numbers that have the same variables, then add the extra numbers to numbers you solved.
Graph the following equation and find
Domain
Range
x-intercept
y-intercept
Horizontal asymptotes
Vertical asymptotes
Will mark brainliest
Find the slope? Work on how you got answer please
Answer:
m= 3/8
Step-by-step explanation:
Kerri and James practiced for the school track meet. Kerri completed 8 laps in 16 minutes. If James ran at the same rate, how many minutes did it take him to run 5 laps? Use the tape diagram shown.
Answer:
it took him 10 mintues to run 5 laps
Step-by-step explanation:
Brainly Meme inspired
Answer:
Bro this is sooooo true I hate when this would happen like I spent the whole day looking at the screen just so it can say "oh your question has been deleted" Like why do you have to do this too me *sigh*
Step-by-step explanation:
Never rely on brainly :(
I will give brainliest to the best response. I would really like help solving this problem.
Answer:
Step-by-step explanation:
given
first term(a)=4
last term (l)=(5n-1)
now
[tex]S_{n}[/tex]=[tex]\frac{n}{2}[/tex](a+l)
[tex]\frac{n(3+5n)}{2}[/tex]=[tex]\frac{n}{2}[/tex](a+l)
[tex]\frac{n(3+5n)}{2}[/tex]=[tex]\frac{n}{2}[/tex](4+5n-1)
[tex]\frac{n(3+5n)}{2}[/tex]=[tex]\frac{n}{2}[/tex](5n+3)
[tex]\frac{n(3+5n)}{2}[/tex]=[tex]\frac{n(3+5n)}{2}[/tex] true
CAN SOMEONE PLEAAE HELP ME ASAP ILL MARK BRAINLIST!!!! PLEASE
Answer:
its 1753
Step-by-step explanation:
Claire walked her dog 2 1/5 miles. Carson walked her dog 1 3/4 times as far as Claire did. How many more miles did Carson walk her dog than Claire?
The word "times" means you have to multiply.
2 1/5 times 1 3/4 is 3 17/20.
The phrase "how many more" means you have to subtract.
3 17/20 minus 2 1/5 is 1 13/20.
Carson walked her dog 1 13/20 more miles than Claire did.
Sorry for the lazy explanations Imao
A full supertanker travels for 574 miles. How many hours did it travel?
Answer:
45
Step-by-step explanation:
you can see that the time increases by 10.
ex: 5+10=15, 15+10=25.
So, 35 + 10 = 45
HELPPP ASAP WILL MARK BRAINLEST!!!
Answer:
Its 19 (a)
Step-by-step explanation:
Mark brainlest please
"Calcular el área sombreada en la gráfica, utilizando la suma de áreas de rectángulos, recuerda entre más rectángulos más exacta será el área"
Ayuda por favor :(
Answer:
I'm not sure, but is it 2?
Step-by-step explanation:
Factor completely > 16x^2 +48xy + 36y^2
Answer:
4 (3 y + 2 x)^2
Step-by-step explanation:
Factor the following:
36 y^2 + 48 x y + 16 x^2
Hint: | Factor out the greatest common divisor of the coefficients of 36 y^2 + 48 x y + 16 x^2.
Factor 4 out of 36 y^2 + 48 x y + 16 x^2:
4 (9 y^2 + 12 x y + 4 x^2)
Hint: | Factor by grouping.
The coefficient of x^2 is 4 and the coefficient of y^2 is 9. The product of 4 and 9 is 36. The factors of 36 which sum to 12 are 6 and 6. So 9 y^2 + 12 x y + 4 x^2 = 4 x^2 + 6 x y + 6 x y + 9 y^2 = 2 x (3 y + 2 x) + 3 y (3 y + 2 x):
4 2 x (3 y + 2 x) + 3 y (3 y + 2 x)
Hint: | Factor common terms from 2 x (3 y + 2 x) + 3 y (3 y + 2 x).
Factor 3 y + 2 x from 2 x (3 y + 2 x) + 3 y (3 y + 2 x):
4 (3 y + 2 x) (3 y + 2 x)
Hint: | Combine products of like terms.
(3 y + 2 x) (3 y + 2 x) = (3 y + 2 x)^2:
Answer: 4 (3 y + 2 x)^2
Can somebody plz help and read the question at answer all them correct thanks!
(Only if u done this before) WILL MARK BRAINLIEST :D
Answer:
Week 1: 14
Week 2: 18
Week 3: 2
Week 4: 9
Week 5: 23
Week 6: 6
Step-by-step explanation:
The question is asking for the percentage of absences each week given the percentage of attendance. We can calculate [tex]100\%-Attendance[/tex] (attendance is in percentage form) to find the percentage of people that were absent during each get-together:
Week 1: [tex]100\%-86\%=14\%\\[/tex]
Week 2: [tex]100\%-82\%=18\%[/tex]
Week 3: [tex]100\%-98\%=2\%[/tex]
Week 4: [tex]100\%-91\% = 9\%[/tex]
Week 5: [tex]100\%-77\% = 23\%[/tex]
Week 6: [tex]100\%-94\% = 6\%[/tex]
Hope this helps :)
Jeff is trying to buy a new car. Which of the following will cause him not to be able to get a loan to purchase the car?
A
Jeff's credit report shows he makes all of his payments on time.
B
Jeff has a credit score that is below 700.
C
Jeff has had a credit history for 10 years.
D
All of the above
Answer:
B should be the answer
Step-by-step explanation:
Answer:
B
jeff has a credit score that is below 700.
Write a system of linear equations for the graph below.
We need to determine the equation of both lines first.
Line 1: y = -2x + 3Line 2: y = -1/3x - 2Now that we know the equations, we can set up a system of equations for this graph where both equations are in standard form.
Line 1:
[tex]y = -2x + 3\\\\2x + y = 3[/tex]
Line 2:
[tex]y = -\frac{1}{3}x - 2\\\\\frac{1}{3}x + y = -2[/tex]
Final answer:
[tex]2x + y = 3\\\frac{1}{3}x + y = -2[/tex]
Answer:
Step-by-step explanation:
F=1.8bc
MARIA IS GOING FOR A RUN. AFTER 20 MINUTES, SHE HAS
RUN 3 MILES, AFTER 2 HOURS, SHE HAS RUN 14.5 MILES,
WHAT IS MARIA'S SPEED?
Answer:
7.25
Step-by-step explanation:
i think im not sure tho
