x = 5 and y = 8
Step-by-step explanation:
y = 3x - 74x - 5y = -20→ Subtitute the value of y to second equation :
4x - 5y = -20
4x - 5(3x - 7) = -20
4x - 15x + 35 = -20
-11x + 35 = -20
-11x = -20 - 35 → (multiplied by -1)
11x = 20 + 35
11x = 55
x = 5
→ Subtitute x to one of Equation :
For example i take from First Equation…
y = 3x - 7
y = 3(5) - 7
y = 15 - 7
y = 8
∴ So, the value of x = 5 with y = 8
What is the inverse of the function f(x) = x +3?
h(x)=1/3x + 3
h(x)=1/3x - 3
h(x)= x - 3
h(x)= x + 3
Step-by-step explanation:
the inverse function simply calculate the original x it of a given y. so, we need to transform the original function to calculate x instead of y.
and then, at the end to make it a formally correct function definition, we rename x to y and y to x.
y = x + 3
x = y - 3
=> to make it a formally correct function definition
y = x - 3 = h(x)
The number of words Latisha can text, y,
varies directly with x, the number of
minutes spent texting. If Latisha texted 180
words in 5 minutes, find k, the constant of
proportionality.
Answer for A it’s 24
HELPPPP!!!!! PLEASEEE IM BEING TIMED !!!!!!!!!!!
Answer:
[tex]x=89[/tex]
Step-by-step explanation:
We can plug into the formula for the mean to get [tex](87+73+84+82+x)/5=83[/tex].
We can combine like terms on the left side to get [tex](326+x)/5=83[/tex].
We can multiply by [tex]5[/tex] on both sides to get [tex]326+x=415[/tex].
We can finally subtract [tex]326[/tex] from both sides to get [tex]x=89[/tex].
So, the answer is [tex]\boxed{x=89}[/tex] and we're done!
Write an
equivalent fraction for 2/5 with 45 as the denominator.
Answer:
18/45
Step-by-step explanation:
First you set 2/5 equal to x/45.
Then you see what number you need to multiply 5 by to get 45
Multiply 2 by the number you got and you get x.
The equivalent fraction for 2/5 with a denominator of 45 is 18/45.
We need to figure out what number we can multiply the numerator and denominator by to get the necessary denominator in order to discover an equivalent fraction for 2/5 with a denominator of 45.
The denominator must be multiplied by 9 in order to be converted from 5 to 45 (45 ÷ 5 = 9). To keep the ratio and get the equal fraction, we will also multiply the numerator by 9.
2/5 x 9/9 = (2 x 9) / (5 x 9) = 18/45
As a result, 18/45 is the corresponding fraction for 2/5 with a denominator of 45.
Learn more about equivalent fraction click;
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What is the range?can someone please help I forgot to study
Answer
The range is the difference between the largest and smallest numbers.
Step-by-step explanation:
The range is the difference between the largest and smallest numbers.
What is another name for the cell membrane? Generally speaking, identify the overall structure of the cell membrane.
Write the polynomial that has factors of 2 and -6.
Answer: x^2 - 4x - 12
Step-by-step explanation:
Factors are (x + 2) and (x - 6)
(x +2)(x - 6)
*multiply the first x by the second x and then by the -6
x^2 - 6x
* multiply the 2 by the second x and then the -6
2x - 12
* combine the two expressions
x^2 - 6x + 2x - 12
*simplify
x^2 - 4x - 12
(3a + 4b) - (5a - 2b) solucion porfavor es urgente
Answer:
(3a+4b)-(5a-2b) = −3a+6b
Step-by-step explanation:
I used a calculator, pls let me know if im incorrect
Hey there!/¡Hola!
(3a + 4b) - (5a - 2b)
= 3a + 4b - 5a - 2b
COMBINE the LIKE TERMS/COMBINAR los TÉRMINOS LIKE
= (3a - 5a) - (4b - 2b)
= 3a - 5a - 4b - 2b
= -2a + 6b
Result/Resulta: -2a + 2b
Good luck on your assignment & enjoy your day!/¡Buena suerte en tu tarea y disfruta tu día!
~Amphitrite1040:)
Hello! I'm in the 7th grade and I'm having trouble with math this year... Will someone please help me with this? :)
(the question is down below)
Answer: 66
Step-by-step explanation: 30 x 2 = 60... 30 / 5 = 6... 60 + 6 = 66 :D
i'm in seventh too hehe
I don’t know the answer help pls
please help me plsssssss! asappp. I'll mark brainlest and give points
Answer:
Step-by-step explanation:
1)a) Abscissa of O 0
Abscissa of A 4
Abscissa of B -3 {opposite of 3}
Abscissa of C 3 {3 is the only positive integer like A}
Abscissa of D -4.5
Abscissa of E -6
Abscissa of F -1 {Midpoint of AE = (6+4)/2 = 10/2 = 5th number from -6 or 4}
b) OB = 3 units
DA = 8.5 {4.5 +4 = 8.5}
X(x-9)(x+4)/6x^3( x+4)(x-9) simplified
Answer: 1/6x^2
Step-by-step explanation: Cancel out like terms like (x-9) and (x+4), then x.
Helloooo could someone plz help me on this ?
Answer:
15 cubic units
Step-by-step explanation:
If you add up the blocks you get 15
What is the equation of a line that passes trough (6,-1) and is parallel to the line that has a slope of -2/3?
Answer:
y=-2/3x+3
Step-by-step explanation:
First, identify the slope you need for your equation. The keyword here is "parallel" so the slope you need is the same as the given slope (-2/3).
Next, use the ordered pair (6,-1); it's on the line that you need to find the equation for. Using slope-intercept form (y=mx+b), plug the -1 in for y, plug the 6 in for x, and plug in your slope of -2/3 for m. Solve for b, your y-intercept. You should get 3.
You have your slope and y-intercept now. Create your equation:
y=-2/3x+3.
How tall is House B?
Answer:
25 maybe I don't now ok because is house a is 24 maybe house b will be 25
What is the solution to the following system of
equations?
-2x + 8y = - 14
- 4x + y = - 13
what is the percent of 3/8
Answer: 37.5%
Step-by-step explanation: To convert the fraction to decimal first convert to decimal and then multiply by 100. Therefore, the solution is 37.5%.
Answer:
37.5%
Step-by-step explanation:
1. Jean bought the new Iphone for $1080 (Tax included) on an installment plan. The installment
agreement included a 10% down payment and 24 monthly payments of $50 each.
a. How much is the down payment?
b.what’s the total amount of the monthly payments?
c.how much did Jean pay for the phone on the installment plan?
d.what is the finance charge (interest)?
Answer:
jndfjhasbfjashdfbasjdfbjashbdcjashdbjcbjhasdcbjasdcbjashdcbjashcdbjadhcbasdhcb
Step-by-step explanation:
gardener has 27 pansies and 36 daisies. He plants an equal number of each
type of flower in each row. What is the greatest possible number of pansies in
each row? Thanks
Answer:
9
Step-by-step explanation:
the gcf is 9
help
i dont understand this.
Answer:
4
Step-by-step explanation:
[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]
let's find the slope of the line :
that is :
[tex] \dfrac{y2 - y1}{x2 - x1}[/tex]taking two points (0 , 4) and (2 , -4)
[tex] \dfrac{4 - ( - 4)}{0 - 2} [/tex][tex] \dfrac{8}{ - 2} [/tex][tex] - 4[/tex]Slope (m) of the graph = -4
and y - intercept (c) = 4
therefore, the equation will be :
[tex]y = mx + c[/tex][tex]y = - 4x + 4[/tex]-8-(-10)= -8 and if u add +10 what is the answer?
Answer:
8-(-10)=-8+10=8 your answer is 8
Step-by-step explanation: sorry if its incorrect
A submarine dives 51 3/5 meters below the surface of the water in 4 minutes. how many meters does the submarine dive each minute? NO LINKS!
A: 12 9/10
B: 12 3/4
C: 206 2/5
D: 47 3/5
Answer:
a
Step-by-step explanation:
51 3/5 = 258/5
258/5 / 4 = 12.9 (meters the submarine dives each min)
now we have to find out what 12.9 is as a fraction!
12.9= 12 9/10 because .9 is equal to 9/10, and 12. equals 12!
10,
17,24
Find the 46
th term.
Sam bowled three games with scores of 210, 185, and 190. He needs to have a four-game average of 205 to qualify for an elite bowling league. What score does he have to bowl on the fourth game to have the average of 205 that he needs?
Answer: 235
Step-by-step explanation:
Total score if he average 205 = 205 * 4 = 820
Score needed on 4th game = 820 - 210 -185 - 190 = 235
PLEASE HELP Enter your answer and show all the steps that you use to solve this problem in the space provided. Bernadette bought two pieces of ribbon. One piece is 6 1/4 feet long, and the other is 11 1/2 feet long. Find the total length of the ribbon.
Answer:
17 3/4 feet long
or
17.75 feet long
Step-by-step explanation:
11 1/2 -> 11 2/4 (just multiplying numerator/denominator by 2
11 2/4 + 6 1/4 = 17 3/4
Answer:
17 3/4
Step-by-step explanation:
Convert 6 1/4 to an improper fraction (25/4)
Convert 11 1/2 to an improper fraction (23/2)
Multiply 23/2 by 2/2 to get a common denominator
which makes 25/4 +23x2/4
And 25+46=71
So 71/4
Then to change it back into a mixed number you divide 71 by 4 and get
17 3/4
Calculus, derivatives. Please help! Show work, if possible. Thanks! :)
[tex]y = x + \pi[/tex]
Step-by-step explanation:
We need to find the slope of the line tangent to y at [tex]x=-\pi[/tex] and we can do that by calculating the derivative of y at that point. We know that
[tex]y'(x) = \dfrac{d}{dx}(\tan{x}) = \sec^2{x}[/tex]
and
[tex]y'(-\pi) = \sec^2(-\pi) = 1[/tex]
To find the equation of the tangent line, we know that the line passes through the point [tex](-\pi, 0)[/tex] so we can write the slope-intercept form of the line's equation as
[tex]0 = (-\pi) + b \Rightarrow b = \pi[/tex]
Therefore, the equation of the line tangent to the point [tex]x = -\pi[/tex] is
[tex]y = x + \pi[/tex]
The graph of the two functions is shown above.
Shelly bought a bed sheet for $1699.
She gave the Shopkeeper $2000 - what
amount will be returned
by
the shopkeeper?
Answer:
the shop keeper will return $301.00
Victor has 2 times as many as trophies as Dean. Together , víctor and Dean have 27 trophies . How many trophies does víctor have?
Answer:
Victor has 18 trophies
Step-by-step explanation:
Let's set up "let statements"
Let d = Dean's trophies
Since Victor has 2 times as many trophies as Dean, we can set up a let statement for Victor like this...
Let 2d = Victor's trophies
Now we can set up an equation! Since we know Dean and Victor have 27 trophies altogether...our equation has to involve addition...
2d + d = 27
Combine like terms...(2d and d)
3d = 27
Divide 3 on both sides to isolate the variable "d"
3d ÷ 3 = d
27 ÷ 3 = 9
So...
d = 9
That means Dean has 9 trophies. But we are not done yet because we need to figure out how many trophies Victor has. Since Victor has 2 times the number of trophies as Dean we can do...
2 · 9 = 18
Therefore, Victor has 18 trophies!
Hope this helps :)
Answer:
Vitor has 18 trophies and Dean has 9.
Step-by-step explanation:
1) (2.01) Identify domain and range. Then determine whether the relation is a function or not. Explain your reasoning.
x y
2 2
-1 4
0 6
3 2
Is this relation a function? Why or why not?
Please help!
I have 10 mins
-I’ll mark BRAINLIEST
Answer:
The terms are 1/2s, -4, 3/4s, 1/8, and s^3
The like terms are 1/2s and 3/4s
-4 and 1/8 could also technically be counted as like terms but I don't think they're looking for that
Step-by-step explanation:
a like term is a term that has the same variable value associated with the coefficient