Answer:
x+6y=30
Step-by-step explanation:
If h(x)=x2−3x+5, what is h(−3)?
23
5
-13
20
how do I solve this equation 5x+7=3x-5
Answer:
x = -6
Step-by-step explanation:
Simplifying
5x + 7 = 3x + -5
Reorder the terms:
7 + 5x = 3x + -5
Reorder the terms:
7 + 5x = -5 + 3x
Solving
7 + 5x = -5 + 3x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-3x' to each side of the equation.
7 + 5x + -3x = -5 + 3x + -3x
Combine like terms: 5x + -3x = 2x
7 + 2x = -5 + 3x + -3x
Combine like terms: 3x + -3x = 0
7 + 2x = -5 + 0
7 + 2x = -5
Add '-7' to each side of the equation.
7 + -7 + 2x = -5 + -7
Combine like terms: 7 + -7 = 0
0 + 2x = -5 + -7
2x = -5 + -7
Combine like terms: -5 + -7 = -12
2x = -12
Divide each side by '2'.
x = -6
Simplifying
x = -6
The solution to the equation 5x + 7 = 3x - 5 is x = -6.
We have,
To solve the equation 5x + 7 = 3x - 5, we need to isolate the variable x on one side of the equation.
Here's how we can do that:
Start by subtracting 3x from both sides of the equation to move all the x terms to one side:
5x + 7 - 3x = 3x - 5 - 3x
Simplifying, we get:
2x + 7 = -5
Next, subtract 7 from both sides of the equation to isolate the term with x:
2x + 7 - 7 = -5 - 7
Simplifying, we get:
2x = -12
Now, to solve for x, we divide both sides of the equation by 2:
(2x)/2 = (-12)/2
Simplifying, we get:
x = -6
Thus,
The solution to the equation 5x + 7 = 3x - 5 is x = -6.
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Help please I have a F in this class!!
The cost to purchase a song from iTunes is $1.29 per song. To purchase a song from
Napster, you must be a member. The Napster membership fee is $10. In addition, each
purchased song costs $1.19. How many songs must be purchased for the monthly price of
Napster to be the same as iTunes?
Answer:
It will take 100 purchased songs for iTunes and Napster to equal in price.
Step-by-step explanation:
iTunes: y=1.29x
Napster: y=1.19x+10
1.29x=1.19x+10
10=.10x
x=100
Your car averages about 27 miles per gallon on highways. With gasoline priced at $2.599 per gallon, how much will
you expect to spend on gasoline during your 500-mile trip?
$192.38
b. $18.51
C $70.17
d. $48.13
Answer:
I want to say C
Step-by-step explanation:
Because $2.599 * 27 = 70.173
Answer:top answer iswrong its D.
Step-by-step explanation:
The sum of x and ten is equal to y times z.
Answer:
x+10=yz
Step-by-step explanation:
Need help with Aleks for geometry
Agustín y Bárbara salen al mismo tiempo y del mismo lugar, por el mismo camino. Agustín camina a 5km/h y Bárbara a 3km/h. Luego de recorrer 7km, Agustín emprende el regreso, ¿a qué distancia de la partida se encuentra con Bárbara? Si en el momento del encuentro también Bárbara emprende el regreso, ¿cuántos minutos después que Agustín llega Bárbara al punto de partida?
Answer:
Ok, primero Agustín camina a 5km/h.
Cuando el recorre 7km, el regresa.
El tiempo en el que sucede esto es a:
7km/5km/h = 1.4 h
La ecuación para Agustín es:
A(t) = 5km/h*t para 0h ≤ t ≤ 1.4h (ida)
A(t) = 7km - 5km/h*(t - 1.4h) para 1.4h ≤ t. (vuelta)
Hacemos lo mismo para Barbara:
7km/3km/h = 2.5h
La ecuación para ella es:
B(t) = 3km/h*t para 0h ≤ t ≤ 2.5h (ida)
B(t) = 7km - 3km/h*(t - 2.5h) para 2.5h ≤ t. (vuelta)
a) ¿a qué distancia de la partida se encuentra con Bárbara?
Tenemos que ver cuando A(t) = B(t).
Para ello comparamos la vuelta de Agustín con la ida de Barbara.
7km - 5km/h*(t - 1.4h) = 3km/h*t
7km - 5km/h*T + 7km = 3km/h*T
14km = 8km/h*t
14/8 h = 1.75h = t.
Entonces la posición en la que se encuentran es:
B(1.75h) = 3km/h*1.75h = 5.25km
Ellos se encuentran a 5.25 kilómetros de el punto de partida.
b) Si en el momento del encuentro también Bárbara emprende el regreso
(Es decir, en este momento Barbara comienza a regresar).
Entonces ella para regresar al punto de inicio tiene que recorrer 5.25km con una velocidad de 3km/h.
Tb = 5.25km/3km/h = 1.75h
Barbara tarda 1.75 horas en regresar.
Agustín también tiene que recorrer 5.25 km para regresar, pero su velocidad es 5km/h.
Ta = 5.25km/5km/h = 1.05h.
La diferencia entre los tiempos es:
Tb - Ta =1.75h - 1.05h = 0.7h
Entonces Barbara llega al punto de partida 0.7 horas después que Agustín.
Pero queremos esto en minutos.
1 hora = 60 minutos.
0.7 horas = 0.7*(60 min) = 42min
Barbara llega 42 minutos después que Agustín.
There are 8 boys and 3 girls from sixth grade in the marching band write 2 different ratios to compare the number of boys and the number of girls
__ : __ and __ : __
Answer:
8:3 and 3:8
Step-by-step explanation:
50=50-10a It is for 2 step equations
Answer:
i think the answer is 0
Step-by-step explanation:
if y= -4/5x+6 what is the value of x when y=-6
Answer:
15
Step-by-step explanation:
Can I have some help please?
Answer:
Step-by-step explanation:
Last one
Answer:
1/3
Step-by-step explanation:
P(green) = green marbles / total marbles
3 green marbles
9 total marbles
P( green) = 3/9 = 1/3
V = X timesY times Z solve for x
Answer:
X = V/(YZ)
Step-by-step explanation:
V=XYZ
Division property of equality
V/(YZ) = X
Symmetric property of equality
X= V/(YZ)
The value for x is;
X = V/YZ
What is an expression?
Expression in math is defined as the collection of the numbers, variables and functions by using signs like addition, subtraction, multiplication, and division.
The expression is given as;
V = X times Y times Z
Now, It can be written as;
V = XYZ
So, For value of x;
Divide by YZ both side;
V/YZ = X
X = V/YZ
Thus, The value for x is;
X = V/YZ
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Derek can do 50 pushups. Roger can do
8% fewer than Derek can do. How many
pushups can Roger do?
Answer: 40
Step-by-step explanation: 50x0.8=40
Okay, maybe im wrong? But i dont see how its 4 thats more than half.
Rodger can do 46 pushups.
50 * 0.92 = 46
Edit: To better clarify, 0.92 is from 1.00 - 0.08.
... 8 percent fewer than 100 percent is 92 percent; 1.00 - 0.08 = 0.92
Keep in mind that:
1.00 = 100%
0.08 = 8%
0.92 = 92%
After finding this you may multiply 50 * 0.92 to get 46.
What is the value of 5xexponent 3 y exponent 2 when x=2 and y=4
factor of x² +46x +45 is?
i need solution please
Answer:
X^2 + 46x + 45 = (x + 1) (x + 45)
Step-by-step explanation:
Consider the form x^2 + bx + c . Find a pair of integers whose product is c and whose sum is b . In this case, whose product is 45 and whose sum is 46 .
1, 45
Write the factored form using these integers.
(x + 1) (x + 45)
I hope this helps.
Answer:
(x+1) (x+45)
Step-by-step explanation:
By using FOIL(Front Outer Inner Left) it should end up like this:
1. x2 + 46x + 1x + 45
2. x2 + 47x + 45
Solve: −4d − 6 = −10
Answer:
hi
Step-by-step explanation:
[tex] - 4d - 6 = - 10 \\ - 4d = - 10 + 6 \\ - 4d = - 4 \\ d = 1[/tex]
i think so…
Answer:
_4d=_10+6
_4d=_4
_4/_4d=_4/_4
d=1
How many tickets will they have to sell to make 5,000,000?
Answer:
5,000,000= 625000 this many tickets if there 8 $
Step-by-step explanation:
And the ticket is 8$
How you would solve it is you take the number of money and divide it by how much each of the tickets are then the finished product is how many you have to sell.
Answer:
80,386
Step-by-step explanation:
What is the measure of <2? m<2=31, m<2=50
Answer: invalid input
Step-by-step explanation:
You and three friends go to a restaurant for dinner.You share three appetizers that cost $6 each. You also share two desserts that cost $3 each.You split the total bill evenly. How much does each person pay.
TELL ME HOW TO SHOW MY WORK PLZ AND I WILL MRAK BRAINLEST P.s after 2 ppl answerd
Answer:
$6 Each
Step-by-step explanation:
First, add all the costs together:
3 $6 apps
3*6=18
2 $3 desserts:
2*3=6
Add the totals up to get a total of $24, then divide that by 4 since it's being split between 4 people.
What do angles 25 and 26 measure?
26: 55 degrees
25: 45 degrees
Find the measure of the missing angles.
Helpp
x = 90 ( supplementary angle )
y = 180 - ( 90+ 26)
= 180 - 116
= 64
The money collected from a Saturday car wash are directly proportional to the number of cars washed. The total money collected after 7 cars is $140. Write an direct variation equation relating the money collected (m) and the number of cars washed
Answer:
[tex]m=20c[/tex]
Step-by-step explanation:
Let m represent the total money collected and c represent the amount of cars washed.
We know that the money collected is directly proportional to the number of cars washed. So, we can write the following equation:
[tex]m=kc[/tex]
Where k is a constant.
We know that the money collected after 7 car washes is $140. So, let's find our k by substituting 140 for m and 7 for c. This yields:
[tex]140=7k[/tex]
Find k. Divide both sides by 7:
[tex]k=20[/tex]
So, the value of k is 20.
We can now substitute k back into our direct variation equation:
[tex]m=20c[/tex]
This means that every car costs $20 to wash.
And we're done!
Answer:
7x140=980
Step-by-step explanation:
7x140= what
What is the slope of this line?
A. −5
B. 5
C. −15
D. 15
Picture Down Below
Answer:
It seems that the slope of this line is 1/5, yet none of the answers correspond to this. Double-check by finding two points on the line, and use the slope formula: (y2-y1/x2-x1). Also, remember that slope is rise/over run. I hope this can guide you!
Answer: the answer is not included in the options
Step-by-step explanation:
The slope of the line can be depicted by the following formulas: 1. Rise/run 2. Y1-y2/ x1-x2
If we were to use the second formula and “plug” in numbers for the variables, the slope we calculate is less than 1
What is 2 to the 4 times 2 to the -7
Answer:
0.125
Step-by-step explanation:
You multiply 2^4 by 2^-7
I've attached a screenshot of the question, please solve
Answer:
b
Step-by-step explanation:
when you multiply out using FOIL (First Inner Outer Last) you get b
Set up a proportion and use cross multiplication to solve.
15 is____ % of 60
Answer:
4%
Step-by-step explanation:
Complete the statement.
(3a? - 5ab + b2) - (-3a2 + 2b2 + 8ab) =
Answer:
6a^2 - 13ab - b^2 (option 1)
Step-by-step explanation:
(3a^2 - 5ab + b^2) - (-3a^2 + 2b^2 + 8ab)
3a^2 - 5ab + b^2 + 3a^2 + -2b^2 + -8ab
6a^2 - 13ab - b^2
Answer: 6a^2 - 13ab - b^2
Step-by-step explanation:
3a^2 - 5ab + b^2
+3a^2 - 8ab - 2b^2
=
6a^2 - 13ab - b^2
-21w + 5 + 3w -1 pls anwser
Answer:
-18w +4
Step-by-step explanation:
-21w + 5 + 3w -1
Combine like terms
-21w +3w +5-1
-18w +4
what is 8 1/6 + 3/4
Answer:
8 11/12
Step-by-step explanation:
8 1/6 + 3/4 = ?
Let's find the equivalent fractions:
1/6 = 2/12 3/4 = 9/12
So, now let's add:
8 2/12 + 9/12 = 8 11/12
Decimal:
8 11/12 = 8.917