Answer:
A
Step-by-step explanation:
-2t +10= 4t+12
-2=6t
-1/3=t
Mary's car is 10 years old and has a problem. The repair man indicates that it will cost her $1200.00 to repair her car. She can purchase a different, more efficient car for $4,500.00. Her present car averages about $2,000.00 per year for gas while the new car would average about $1,500.00 per year. Find the number of years for when the total cost of repair would equal the total cost of replacement.
Answer:
6 years 6 monthsStep-by-step explanation:
given data
let the number of year be x
le the total cost b y
for the older car
cost of repair $1200
cost of gas $2,000.00 per year
the cost for using the old car is
y=1200+2000x-----------1
for the new car
cost of $4500
cost of gas $1,500.00 per year
y=4500+1500x-----------2
equating 1 and 2 we have
1200+2000x=4500+1500x
solving for x
1200-4500=1500x-2000x
-3300=-500x
x=3300/500
x=6.6
The number of years is 6 years 6 months
Plz I need all the help I can get!
Fill in the blanks to continue the patterns:
Answer:
look in step by step
Step-by-step explanation:
12, 15, 18, 21, 24, 27, 30, 33, etc.
you are increasing by 3
18, 24, 30, 36, 42, 48, 54, 60, 66, 72
you are increasing by 6
5, 9, 13, 17, 21, 25, 29, 33, 37
you are increasing by 4
32, 16, 8... 4, 2, 1
you are decreasing by half
Answer:
A, 12,15 B, 15,21 C, 5,17 D, 32,16
Step-by-step explanation:
for A the rule is count by 3s
for B the rule is add 3 but skip every 2nd number
for C the rule is add is add 4
for D the rule is divide 2
hope this helps :)
- by chance may I get brainliest
1002 - ______ =711 982 - _______= 405 2005 - ______= 970 610 x ____= 2240 ______ x 1000 = 250000 _______ x 4 = 8620 200 x _______ = 40000 ¿Qué NUMERO DIVIDIDO ENTRE 2 ES IGUAL A 8642? ¿Qué NUMERO DIVIDIDO ENTRE 3 ES IGUAL A 8643? ¿Qué NUMERO DIVIDIDO ENTRE 5 ES IGUAL A 9640? ¿Qué NUMERO DIVIDIDO ENTRE10 ES IGUAL A 6420? ¿Qué NUMERO DIVIDIDO ENTRE 20 ES IGUAL A 2000?
Answer:
1002 - 712984 =711 982 - 4763987= 405 2005 - ______= 970 610 x 0.00230782703 = 2240.
250 x 1000 = 250000
2155050 x 4 = 8620 200 x 0.00464026356 = 40000
Step-by-step explanation:
a) i) 1002 - ______ =711 982
= 1002- x = 711982
= 1002 - (-711982) = x
= 712984
ii) 711 982 - _______= 405 2005
711982 - x = 4052005
x = 711982 -(- 4052005)
x = 4763987
iii) 970 610 x ____= 2240
2240 ÷ 970610 = 0.00230782703
iv) ______ x 1000 = 250000
= 250000 ÷ 1000
= 250
v) _______ x 4 = 8620 200
8620200 ÷ 4 = 2155050
vi) 8620 200 x _______ = 40000
= 40000 ÷ 8620200
= 0.00464026356
b) ¿Qué NUMERO DIVIDIDO ENTRE 2 ES IGUAL A 8642?
x ÷ 2 = 8642
x = 8642 × 2
x = 17284
c) ¿Qué NUMERO DIVIDIDO ENTRE 3 ES IGUAL A 8643?
x ÷ 3 = 8643
x = 8643× 3
x = 25929
d) ¿Qué NUMERO DIVIDIDO ENTRE 5 ES IGUAL A 9640?
x ÷ 5 = 9640
= 9640 × 5
= 48200
e) ¿Qué NUMERO DIVIDIDO ENTRE10 ES IGUAL A 6420?
= x ÷ 5 = 6420
= x = 6420 × 5
= x = 32100
f) ¿Qué NUMERO DIVIDIDO ENTRE 20 ES IGUAL A 2000?
= x ÷ 20 = 2000
= x = 2000 × 20
x = 40000
If x=4 and 4x+9=y then (4(4)+9=y. This is an illustration of which property
Answer:
pretty sure commutative property lol
Step-by-step explanation:
consider g(×)=5×-12. For what interval(s) is g(×) positive? negative?
Answer:
negative
Step-by-step explanation:
Point Q is the image of Q(-7,-6) under the translation(x,y) to (x+12,y+8)
Answer:
i will figure it out give me a sec ;-;
Step-by-step explanation:
Choose the ratio below that is equivalent to 4:3
A. 12:3
B. 8:3
C. 12:9
D. 3:4
The ratio equivalent to 4:3 is 12:9
Given:
Ratio = 4:3
To Find:
The ratio equivalent to 4:3
The given number which is in ratio is its simplest form.
Therefore in order to make it expanded form,First convert the given ratio into the fraction for its Multiplication.
Step 1: Convert to fraction
4:3 = 4/3
Step 2: Multiple the numerator and denominator of fraction by 3
4/3×3/3 = 12/9
Step 3: Convert the fraction into a ratio
12/9 = 12:9
Hence,the ratio equivalent to 4:3 is 12:9.
Option C. is correct
To learn more about Ratio visit: https://brainly.com/question/12024093
#SPJ1
Still can’t get this right please help
Answer:
D. y = (3/4)x + 10
Step-by-step explanation:
since it has to be in a formula of y = mx + b, it can't be a or b
y - 4 = 3/4 (x + 8)
y - 4 = (3/4)x + 6
y = (3/4)x + 10
y= 2x-1
3x-y=-1
Shouw ur work cuz im dumb and i need help plz
Answer:
ur not dumb but i think its b
Step-by-step explanation:
Exponential function f is represented by the table. x -2 -1 0 1 2 f(x) -46 -22 -10 -4 -1 Function g is represented by the equation. g(x)=-18(1/3)^x+2 Which statement correctly compares the two functions on the interval [-1, 2]? A. Only function f is increasing, but both functions are negative. B. Both functions are increasing, but function f increases at a faster average rate. C. Only function f is increasing, and only function f is negative. D. Both functions are increasing, but function g increases at a faster average rate.
Answer: I think it's D.
Step-by-step explanation:
I'm on the same thing and my best answer is Both functions are increasing, but function g increases at a faster average rate.
Both functions are increasing, but function g increases at a faster average rate.
x f(x)
-2 -46
-1 -22
0 -10
1 -4
2 -1
What is an increasing function?If the slope of a function is continuously increasing or constant in an interval, the function is known as an increasing function.
Let us assume [tex]f(x)=ab^x+c[/tex]
at x=0, f(0)=-10
So, [tex]-10=a+c[/tex]
Similarly, by satisfying the above table in the f(x)
[tex]f(x)=-\frac{33}{5} (\frac{1}{11} )^x-\frac{17}{5}[/tex]
[tex]f'(x) > 0[/tex]
So we can say that f(x) is an increasing function.
[tex]g(x)=-18(\frac{1}{3} )^x+2[/tex]
[tex]g'(x)=-18(\frac{1}{3} )^xln(\frac{1}{3} )[/tex]
[tex]ln\frac{1}{3} < 0[/tex]
So, [tex]g'(x) > 0[/tex]
So, g(x) is an increasing function.
For any x∈f(x) and x∈g(x) [tex]g'(x) > f'(x)[/tex]
So, g increases at a faster average rate
Thus, Both functions are increasing, but function g increases at a faster average rate.
To get more about increasing functions visit:
https://brainly.com/question/12940982
A one year gym membership costs $160. A registration fee of $28 is paid up front and the rest is paid monthly. Adding the variable. Let x =
Answer:
here's an example to help you out man Let n = how much each new member must pay each month.
$160 - $28 = $132
n = $132 ÷ 12 months in a year
n = $11
You can also look at it this way:
n = (160 - 28)/12
What are these expressions like in words and numbers please answer if you know simple
HELP PLEASE
Carlie, Samantha, Lily, and Maria ran the 400-meter relay today at the track meet. If their times were 12.8 seconds, 13.25 seconds, 12.06 seconds, and 13.12 seconds, what was their total time for the race (in seconds)?
39.71 seconds
51.23 seconds
40.13 seconds
51.13 seconds
Answer:
51.23 seconds is the answer.....Hopes it helps you.....Thank you ☺️☺️☺️
The measure of angle ABD IS 105° . The measure of angle ABC is 75°. What is the measure of CBD?
Answer:
30
Step-by-step explanation:
abc+cbd=105
abc=75
cbd=30
Answer:
105-75=30
Step-by-step explanation:
Math Help
Thanks
Brainlest will be awarded
Answer:
x=24
Step-by-step explanation:
you reduce the numbers making it 1/7 multiplied by 7x = 24, x will end up being 24
3 f(x)=(3x−5) 3 f, left parenthesis, x, right parenthesis, equals, left parenthesis, 3, x, minus, 5, right parenthesis, cubed h ( x ) = 2 x 3 + 8 h(x)=2 3 x +8h, left parenthesis, x, right parenthesis, equals, 2, cube root of, x, end cube root, plus, 8 Write h ( f ( x ) ) h(f(x))h, left parenthesis, f, left parenthesis, x, right parenthesis, right parenthesis as an expression in terms of x xx. h ( f ( x ) ) = h(f(x))=h, left parenthesis, f, left parenthesis, x, right parenthesis, right parenthesis, equals
Answer:
[tex]h(f(x)) = 18x -22[/tex]
Step-by-step explanation:
Given
f (x) = [tex](3x-5)^3[/tex]
[tex]h(x) =2\sqrt[3]{3x} + 8[/tex]
We are to find the composite function [tex]h(f(x))[/tex]
[tex]h(f(x))[/tex][tex]= h ((3x-5)^3)[/tex]
To get [tex]h ((3x-5)^3)[/tex], we will substitute x as (3x-5)³ in h(x)as shown:
[tex]h(x) =2\sqrt[3]{3(3x-5)^3} + 8\\h(f(x)) =2(3(3x-5)+ 8\\h(f(x)) = 2(9x-15)+8\\h(f(x)) =18x-30+8\\h(f(x)) = 18x - 22[/tex]
бу - 2y = 3y+2
i need help
Answer:
6y-2y=3y+2
4y=3y+2
4y-3y=2
1y=2
y=2
Plz help me out ASAP!!!!!!!
Answer:
Step-by-step explanation:
A: +2
B: +2
C: -25
D: x3
Solve for both and you'll get brainliest
List them as photo 1 and photo 2
Answer:
Photo 1: x=5 y=-2
Photo 2: x=11/5 y=4
Step-by-step explanation:
Photo 1-
2x + 3y = 4
x = 2 − 3/2y
y = 4/3 - 2/3x
2x + 3y = 4
x = 2 - 3/2y
y = 4/3 - 2/3x
Photo 2-
5x + 3y = 23
x = 2 − 3/2y
y = 4/3 − 2/3x
3y = 15x - 21
x = y/5 + 7/5
y = 5x − 7
Mauricio y Peter tienen una banda y componen 6 canciones en 15 días. Si llaman a su amigo Anderson para que les ayude durante 5 días, ¿Cuántas canciones compondrán?
Responder:
2 canciones
Explicación paso a paso:
Si la cantidad de canciones compuestas en 15 días es de 6 canciones, si Anderson se une a ellos para ayudar durante 5 días, el número total de canciones que producirán en 5 días se calculará como se muestra:
15 días = 6 canciones
5 días = x canciones
Cruz multiplicar
15 días * x = 5 días * 6 canciones
15 veces = 30
Dividir entre 15
15 veces / 15 = 30/15
x = 2
Por lo tanto, compondrán 2 canciones si Anderson les ayuda durante 5 días.
15% of what number is 24?
O A) 36
OB) 150
OC) 160
OD) 180
Answer:
160
Step-by-step explanation:
We have, 15% × x = 24
or,
15
100
× x = 24
Multiplying both sides by 100 and dividing both sides by 15,
we have x = 24 ×
100
15
x = 160
If you are using a calculator, simply enter 24×100÷15, which will give you the answer.
Answer:
C) 160
Step-by-step explanation:
Let the number be x
15% of x = 15/100 * x
15/100 * x = 24
x = 24*100 / 15
x = 160
it takes 10 pounds of mash potatoes to make 15 pounds of mashed potatoes. how many pounds of mash potatoes can they make with 15 pounds of mash potatoes
In Rebecca's kennel, 3/4 of the dogs are poodles. If 9/10 of the poodles are white, what fraction of the dogs in the kennel are white poodles?
Answer:
66/80 = 33/40
Step-by-step explanation:
I think this is right sorry if its not :)
Graph a line that contains the point (4,3) and has a slope of 1/2
Answer:
Equation is y = 1/2x + 1
Step-by-step explanation:
First off we know the slope, it is 1/2, so that is done already. Now we just need the y-intercept. In order to cross (4, 3), in needs to have a y-intercept of 1. So the equation is y = 1/2x + 1. I hope this helps, and I hope it's not wrong, but I don't think it is.
Write an equation in slope-intercept form of the line with the given slope m and y-intercept b.
m= -2, b= 5
2,672
Enter the equation of the line in slope-intercept form.
Answer:
y = -2x + 52,672
Step-by-step explanation:
Slope intercept form is the same as y intercept form: y = mx + b.
The m is the slope and the b is the y intercept.
If A= arcsin(-4/5) in Quadrant IV and B=arctan(5/12) in Quadrant III, what is the values of tan(arcsin(-4/5)+arctan(5/12))? ASAP please...
Answer:
-33/56
Step-by-step explanation:
suppose: A,B are the 2 angles of a triangle
we have: A = arcsin[tex]\frac{-4}{5}[/tex]
B = arctan [tex]\frac{5}{12}[/tex]
=> sin A = [tex]\frac{-4}{5}[/tex] => cos A = [tex]\sqrt{1-\frac{(-4)^{2} }{5^{2} } } =\frac{3}{5}[/tex] (because A is in quadrant IV)
tan B = [tex]\frac{5}{12}[/tex]
have:
[tex]1+ cot^{2}B=\frac{1}{sin^{2}B } => 1+\frac{1}{tan^{2} B}=\frac{1}{sin^{2}B } \\=> 1+\frac{1}{\frac{5^{2} }{12^{2} } } =\frac{1}{sin^{2}B }\\ => sin^{2}B=\frac{25}{169}[/tex]
because B is in quadrant III => [tex]sin B=-\sqrt{\frac{25}{169} }=\frac{-5}{13}=>cosB=-\sqrt{1-\frac{5^{2} }{13^{2} } }=\frac{-12}{13}[/tex]
tan(arcsin(-4/5)+arctan(5/12)) = tan( A + B)
but A,B are the 2 angles of a triangle => tan(A + B) = [tex]\frac{sin(A+B)}{cos(A+B)}[/tex]
have: sin(A+B) = sinA.cosB + cosA.sinB = [tex]\frac{-4}{5}.\frac{-12}{13} +\frac{3}{5}.\frac{-5}{13}=\frac{33}{65}[/tex]
cos(A + B) = cosA.cosB - sinA.sinB =[tex]\frac{3}{5}.\frac{-12}{13}-\frac{-4}{5}.\frac{-5}{13}=\frac{-56}{65}[/tex]
=> tan(A + B) = [tex]\frac{33}{65}:\frac{-56}{65}=\frac{-33}{56}[/tex]
Answer:
pie/6
Explaniation:
just took the test on k12
A movie theater has 24 screens. The ratio of actions films to other films currently showing on all of the screens is 1:2. How many action films are currently showing? Explain your thinking.
Answer:
8 action films
Step-by-step explanation:
A movie theater has 24 screens. The ratio of actions films to other films currently showing on all of the screens is 1:2.
Action films : Other films
1 : 2
The total fraction = 1 + 2 = 3
How many action films are currently showing?
This is calculated as:
1/3 × 24 screens
= 8 screens
Therefore, 8 action films are currently showing
Mario is the manager at a local store. He has budgeted $1600 for the wages of the cahiers for the week. If each cashier make $8.75 an hour, how many total hours can the cashiers work that week?
Answer:
182 hours
Step-by-step explanation:
In this scenario, the total would be $1600 which is the maximum amount that can be wasted. The only variable in this scenario is the number of hours that the cashier can work. Therefore we can use the following formula to calculate the maximum number of hours the cashier can actually work (h) before going over the total limit.
8.75h = 1600 ... divide each side by 8.75
h = 182.85
Therefore, we see that the total amount of hours equals 182.85 but since we are counting hours then the answer would be 182 hours because if the cashiers work 183 hours there won't be enough money budgeted to pay them.
Hey guys please help mee
Answer:
29 and 18
Step-by-step explanation:
If when they say terms they mean numbers then in the first sequence it would be 29 terms and the second sequence would be 18 terms.
Answer:
1) 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, 128
2) 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115
Step-by-step explanation:
1) Take 20-16 which gives you 4. Keep adding 4 until you get 128.
2) Count by 5 until 115
Which equation has infinitely many solutions?
1. 12 + 4x = 6x + 10 – 2x
2. 5x + 14 – 4x = 23 + x – 9
3. X + 9 – 0.8x = 5.2x + 17 - 8
4. 4x – 2x = 20
