how to isolate the variable in the equation -2/3n + 7 = 15 lesson 6-2
Answer:
n=-4/3
Step-by-step explanation:
So the equation is -2/3n+7=15
First you subtract 7 from both sides: -2/3n+7-7=15-7 : -2/3n=8
Next multiply by 1/-2 on both sides, canceling out the -2 on the left and dividing 8 by -2 on the right: 3n=-4
Next divide by 3 on both sides
Answer: n=-4/3
si para lavar un inodoro de 6 litros de capacidad, se utilizan 20 litros de agua.¿Como representarías el consumo total de de agua(descargas elevado)del inodoro, asumiendo que es lavado solamente en una ocasión?
Responder:
26 litros
Explicación paso a paso:
Dado lo siguiente
Litros totales de agua utilizados = 20 litros
El inodoro en sí contiene 6 litros de agua.
Agua total consumida = litro de agua utilizada + agua contenida en el inodoro
Agua total consumida = 20 litros + 6 litros
Agua total consumida = 26 litros
Por lo tanto, el consumo total de agua del inodoro, asumiendo que se descarga una sola vez, es de 26 litros
15x-7y=-49 standard form to slope-intercept form
Answer:
y= \frac{15}{7}x + 7
not sure if that will work so
y = 15x/7x + 7
Step-by-step explanation:
The sum of the squares of two consecutive even integers is 1684. What are the integers?
Answer:
Step-by-step explanation:
Let the 2 consecutive integers be x and x+1.
x²+(x+1)²=1684
x²+(x+1)(x+1)=1684
x²+x²+x+x+1=1684
2x²+2x-1683=0
Using quadratic formular
Help! please show some sort of proof! thanks xo
ive asked this question 3 times please someone help its already late.
Answer:
I think it is B I am sorry if wrong
What is the answer??
Answer:
multiply both sides of the equation by 3
Step-by-step explanation:
When your trying to solve for a variable, do steps where you are isolating that variable.
In the equation given, to isolate b, get rid of the division first and we can do that through multiplication.
Which of these choices show a pair of equivalent expressions? Check all that
apply.
A. 89/2 and ( 18 )
B. 121/7 and (172)
C. (2/125) and 1253/7
D. 45/2 and (1)
Step-by-step explanation:
I think it's B, if you are missing a decimal point and the second term is 17.2 and not 172. otherwise none are equivalent
Answer:
D. 45/2 and (1)
A. 89/2 and ( 18 )
Step-by-step explanation:
ap3x
In parallelogram ABCD, if m angle C= 110° and m angle D - 70°, what is the sum of the measures of LA and 28?
409
909
180°
360°
Answer:
180°
Step-by-step explanation:
ABCD is a parallelogram.
Measures of the opposite angles of a parallelogram are equal. Here [tex] \angle A, \:\: \angle C \: \: and\:\: \angle B, \:\: \angle D[/tex] are opposite angles.
[tex] \therefore m\angle A = m\angle C = 110\degree [/tex]
[tex] \& \:m\angle B = m\angle D = 70\degree [/tex]
[tex] m\angle A + m\angle B =110\degree + 70\degree [/tex]
[tex] m\angle A + m\angle B =180\degree [/tex]
Which of the following is the complete factorization of the polynomial below?
x^3 - 7x^2 + 7x + 15
A. (x - 1)(x-3)(x-5)
B. (x + 1)(x+3)(x+5)
C. (x + 1)(x-3)(x-5)
D. (x-1)(x+3)(x+5)
Answer:
The answer is C :) (x + 1)(x-3)(x-5)
Step-by-step explanation:
Answer
c
Step-by-step explanation:
What is 3.45 divided by 1.5
Answer:
2.3
Step-by-step explanation:
<3
Answer:
The answer is 2.3.
WHAT IS THE TOTAL SURFACE AREA OF THE SQUARE PYRAMID BELOW!?!??!?!
Answer:
the answer is going to be 203 square inches
Step-by-step explanation:
7 x 11 = 77
77 x 2 = 154
7 x 7 = 49
154 + 49 = 203
NOTICE:11.5 is useless, don't get tricked.
Answer:
Solution given:
side of base[a]=7in
height[h]=11in
slant height [l]=11.5in
THE TOTAL SURFACE AREA OF THE SQUARE PYRAMID=a²+2ah=7²+2*7*11=203in²
The total surface area of square pyramid is 203in².
In a given survey, 9 people said their favorite color is pink. This number represented 45% of the total people. How many total people took the survey?
Answer:
20 total people took the survey
6 to the 2 power −2(5+1+3)
Answer:
18
Step-by-step explanation:
find the missing dimension of the triangle
Answer:
b=7
Step-by-step explanation:
A=bh/2
28=8b/2
56=8b
b=7
Can someone plz help me with this one problem plz!!!
Answer:
the y values in order are: 2,7,12,17
Step-by-step explanation:
Answer: They are 2, 7, 12, and 17
Step-by-step explanation:
5x2-8= 2
5x3-8= 7
5x4-8= 12
5x5-8= 17
A cylindrical container of paint with radius 6 in. is 15 in tall. If all of the surfaces except
the top are made of metal, how much metal is used to make the container? Assume the
thickness of the metal is negligible. Show your answer to the nearest square inch.
shhshshshwhswhhshshsshh
Answer:
(4x+1)(x+3)
Step-by-step explanation:
brainliest please!!
jason goes to the sandwich shop for lunch the prices for sandwiches are listed below
peanut butter and jelly $1.75
meatball $2.50
ham and cheese $2.25
what number completes the sentence 3m = ?
pls tell me if 70/100 is great in maths
Answer:
Not the greatest.
Step-by-step explanation:
Not the greatest, but I would call it a good score.
35 POINTS!! ANSWER THIS FOR ME PLS
Answer:
A. Graphs 1 and 2Step-by-step explanation:
The first graph has domain x = 0 to 5The second graph has domain x = 0 to 5The third graph has domain x = 0 to 7As we see graphs 1 and 2 have same domain.
Correct choice is A
Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah a total of people 13 took the trip. She was able to purchase coach tickets for $390 and first class tickets for $1000. She used her total budget for airfare for the trip, which was $8120. How many first class tickets did she buy? How many coach tickets did she buy?
Answer:
x = 6
Step-by-step explanation:
Coach ticket = $180
first class ticket = $1020
people = 8
Let x be number of coach tickets
Then number of first class tickets = (8 - x)
x * 180 + (8 - x) * 1020 = 3120
180 X + 8 * 1020 - 1020 x = 3120
180 x + 8160 - 1020 x = 3120
180 x - 1020 x = 3120 -8160
- 840 x = - 5040
840 x = 5040
x = 6
So 6 coach class tickets and 2 first class tickets
Answer:
She bought 8 coach tickets
And 5 first class tickets
Step-by-step explanation:
390 x 8 = 3,120
1000 x 5 = 5,000
3,120 + 5,000 = 8,120
B. Noah writes the equation 3 (x+7)=57 to represent the situation. DO YOU agree with him? Explain your answer.
Answer:
Yes , i agree with Noah that the equation would be 3(x + 7) = 57
Step-by-step explanation:
P.S - The exact question is -
To find - Noah writes the equation 3 (x+7)=57 to represent the situation.
DO YOU agree with him? Explain your answer.
Proof -
Yes , i agree with Noah
Because in the figure we can see that there is x written 3 times and 7 written 3 time and whole the values is equal to 57 .
Because 57 is divided into x 7 x 7 x 7
∴ we can write it as
3 times x + 3 times 7 = 57
⇒3(x) + 3(7) = 57
⇒3(x+7) = 57
Ans Noah give the same equation 3 (x+7)=57
So, I agree with Noah.
the slope of the line that passes through the points (-8,-7) and (-4,-2)
Answer:
I'm pretty sure the slope is 5/4
Step-by-step explanation:
When you graph (-8,-7) and (-4,-2) you use rise/run to find the slope.Which is essntially counting up and the over from the first point to the second. Or you can use the equation of slope. Which is y1-y2/x1-x2.
-2(x - 14) help me? I need help so I can get my grade up in algebra and pass my class so please help me?
Answer:
[tex] - 2x + 28[/tex]
Step-by-step explanation:
1) Expand by distributing terms.
[tex] - 2x - 2 \times - 14[/tex]
2) Simplify 2 × -14 to -28.
[tex] - 2x - ( - 28)[/tex]
3) Remove parentheses.
[tex] - 2x + 28[/tex]
Therefor, the answer is - 2x + 28.
Out of the 4,500 people who attend the rock concert, forty-six percent purchase a T-shirt. How many people buy T-shirts?
The number of people that bought T-shirt is 2070 people
What is percentage?A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%"
To find the percentage of those that bought the T-shirt
We find 45% of 4,500
45/100 * 4500
2070
Hence, 2070 people out of the 4,500 people who attend the rock concert bought the T-shirt
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HELP ME PLZZZ ASAP!
Factor to create an equivalent expression: 36a-16 .
Answer:
4(9a - 4)
Step-by-step explanation:
Answer:
4(9a - 4)
Step-by-step explanation:
Given
36a - 16 ← factor out 4 from each term
= 4(9a - 4)
Please answer this
will mark brianlest
Answer:
t = 3s
Step-by-step explanation:
The equation t = 3s can be used to calculate the total cost.
if x-25=11, what is the value x/6
Question: If x-25 = 11, then what is the solution of x/6?
Step-by-Step Explanation:
1. 25 + 11 = 36
2. x = 36
3. 35/6 = 6
Answer:
6
Step-by-step explanation:
Here,
x-25=11,
x=11+25
x=36
Now,
putting the value of x,
x/6=36/6
=6
what is the minimum value of y=3x^2−18x+15
The quadratic [tex]y=3x^2-18x+15[/tex] has a minimum value and The minimum value is at (3, 2) that is -12.
What is a quadratic equation?A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.
We are given the quadratic function:
[tex]y=3x^2-18x+15[/tex]
In this case, a = 3, b = -18, and c = 15.
Thus, the x-coordinate of the vertex is:
[tex]x =-\dfrac{-18}{2(3)} \\\\x =-\dfrac{-18}{6} \\\\x = 3[/tex]
The minimum is the vertex of the quadratic.
The vertex is given by:
[tex](\dfrac{-b}{2a} ,f(\dfrac{-b}{2a}))[/tex]
And the minimum value is:
[tex]y=3(3)^2-18(3)+15\\\\y = -12[/tex]
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On a coordinate plane, two parabolas open up. The solid-line parabola, labeled f of x, goes through (negative 2, 4), has a vertex at (0, 0), and goes through (2, 4). The dashed-line parabola, labeled g of x, goes through (negative 5, 8), has a vertex at (negative 3, 4), and goes through (negative 1, 8).
Which best describes the transformation that occurs from the graph of f(x) = x2 to g(x) = (x + 3)2 + 4?
left 3, up 4
right 3, down 4
left 3, down 4
right 3, up 4
Look at the lowest point of the line ( the bottom of the u)
On f(x) the u is at the point (0,0)
On g(x) the u is at point ( -3,4)
This means it shifted to the left 3 units and up 4 units.
The answer is left 3, up 4
Answer:
A. left 3, up 4
Step-by-step explanation: