Lisa is 6 years older than twice her sister's age. Lisa is 12. Write and then solve an equation to determine the age of Lisa's sister.

Answers

Answer 1

Answer: lisa's sister is 3

Step-by-step explanation:12-6 is 6 then 6/2 is 3 so the check lets do it backwards 3*2 is 6 +6 because Lisa is 6 years older than twice her sister's age

Answer 2

The equation is y = 2x + 6. Then the age of her sister will be 3 years old.

What is the solution to the equation?

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

Lisa is six years older than her younger sister. Lisa is twelve years old.

Let y be the age of Lisa and 'x' be the age of her sister. Then the equation is given as,

y = 2x + 6

If the age of Lisa is 12. Then the age of her sister is calculated as,

12 = 2x + 6

2x = 12 - 6

2x = 6

x = 6 / 2

x = 3

The equation is y = 2x + 6. Then the age of her sister will be 3 years old.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

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Related Questions

what is equivalent to √1,620 / √180

Answers

Answer:

the answer is this! understand

Jonathan just got $12 for his weekly allowance. He puts half of his allowance in his savings
account. What could he do with the rest of the money? Select all that apply.
donate $1 to charity and keep $5 for spending money
spend $10 on a baseball cap and donate $2 to charity
spend $9 renting a canoe and $3 for a water bottle
spend $3 on candy, $5 on an ice cream sundae, and $4 on a baseball

Answers

Answer:

keep 5 dollars spending and 1 dollar charity

Step-by-step explanation:

the rest don't add up to 6 dollars and that is all the money he has.

Solve The Two Equations for x.

Answers

Answer:

x = 7, x = 5

Step-by-step explanation:

[tex]\frac{3x+3}{8}[/tex] = 2x - 11 ( multiply both sides by 8 to clear the fraction )

3x + 3 = 16x - 88 ( subtract 3x from both sides )

3 = 13x - 88 ( add 88 to both sides )

91 = 13x ( divide both sides by 13 )

7 = x

--------------------------------------------------------------

[tex]\frac{4x-6}{7}[/tex] = 2 ( multiply both sides by 7 )

4x - 6 = 14 ( add 6 to both sides )

4x = 20 ( divide both sides by 4 )

x = 5

3x + 3 / 8 = 2x - 11

Multiply both sides by 8

8 × ( 3x + 3 / 8 ) = 8 × ( 2x - 11 )

3x + 3 = 16x - 88

Add both sides 88

3x + 3 + 88 = 16x - 88 + 88

3x + 91 = 16x

Subtract both sides 3x

3x - 3x + 91 = 16x - 3x

91 = 13x

Divide both sides by 13

91 ÷ 13 = 13x ÷ 13

7 = x

x = 7

_________________________________

4x - 6 / 7 = 2

Multiply both sides by 7

( 4x - 6 / 7 ) × 7 = 2 × 7

4x - 6 = 14

Add both sides 6

4x - 6 + 6 = 14 + 6

4x = 20

Divide both sides by 4

4x ÷ 4 = 20 ÷ 4

x = 5

I will mark brainiest whoever answers this correctly

some patients participated in a clinical trial for a new drug to treat osteoporosis. A patient is selected at random. The probability that the patient had no change in his bone mass density is 7/13, the probability that he had a slight reduction in his bone mass density is 1/k and the probability that he had a significant reduction in his bone mass density is 1/2k. Find the value of k

Answers

Answer:

k = 3.9

Step-by-step explanation:

Since the three possible outcomes are given. Therefore, the sum of all the probabilities of the three possible outcomes will be equal to one:

[tex]\frac{7}{13} +\frac{1}{k}+ \frac{1}{2k} = 1 \\\\\frac{1}{k} \frac{1}{2k} =1-\frac{7}{13}\\\\\frac{3}{2k} \frac{5}{13}\\\\2k = \frac{(13)(3)}{5}\\\\k = \frac{39}{(5)(2)}\\[/tex]

k = 3.9

WHICH EXPRESSION HAS THE GREATEST VALUE

Answers

Answer:

The second, 16^3/2

Step-by-step explanation:

The first is equal to 16

The second is equal to 64

The third is equal to 16

The fourth is equal to 16

The required, greatest volume among the given number is [tex]16^{3/2}[/tex].

What is simplification?

Simplification involves applying rules of arithmetic and algebra to remove unnecessary terms, factors, or operations from an expression. The goal is to obtain an expression that is easier to work with, manipulate, or solve.

Here,
The given number,
∛64² simplified to 16,
[tex]16^{3/2}[/tex] simplified to 64.
√16² simplified to 16
∛8⁴ simplified to 16

Thus, the required, greatest volume among the given number is [tex]16^{3/2}[/tex].

Learn more about simplification here:

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7, 3, -1, -5, … What is the 7th value in the sequence?

Answers

Answer:

         - 17

Step-by-step explanation:

7

3 = 7 - 4

-1 = 3 - 4

-5 = -1 - 4

so the 5th:  -5 - 4 = -9

     the 6th:   -9 - 4 = -13

and the 7th:   -13 - 4 = -17

Please Solve. Thanks.

Answers

Answer:

Option C, Y and Z appear to be parallel lines

Hope this helps!

What is the median of 8, 7.5, 6, 5.75, 10.25, 13.75, 6.5, 8.75, 9, 8, 9.25, 10, 8.25, 8.25, 9.25, 11, 6.75, 7, 9.5, 8.5

Answers

Answer:

8.375

Step-by-step explanation:

5.75,6, 6.5, 6.75, 7, 7.5, 8, 8, 8.25, 8.25, 8.5, 8.75, 9, 9.25, 9.25, 9.5, 10, 10.25, 11, 13.75

8.25 + 8.5 = 16.75

16.75/2 = 8.375

what is 3.72 x 10*5 divided by 6 x 10*2

Answers

Answer:

1.55

Step-by-step explanation:

Determine the zeros of the function f(x)=x^2-2x-8.

Answers

X = 4, -2 that should be the roots(zeros) of the function.


Describe the trend/correlation
shown in the scatter plot below

Answers

Answer:

Negative correlation.

Step-by-step explanation:

Negative correlation means that as x increases, y decreases

Positive correlation means that as x increases, y also increases.

No correlation means that neither of the two above cases happens.

In the graph, we can see that on the right (when x is negative) the general y values are larger.

As x increases, the y-values decrease.

(Particularly, we could adjust these data with a linear equation with a negative slope)

Then this is a negative correlation.

Using the formula m= f(x2) - f(x1)/x2 - x1, what is the rate of change for the linear function that contains the
points (-3, 2) and (1,10)?

1/2

8

-4

2

Answers

Answer:

2

Step-by-step explanation:

The slope of the line through (-3, 2) and (1,10) can be found by lining up the point's vertically and subtracting then putting 2nd difference on top of first.

(1,10)

Minus

(-3,2)

-------

8/4=2

The slope is 2.

Please answer 7 and 8, ill give brainliest

Answers

Answer: #7 is 130 and #8 is 85

All the angles in a triangle should add up to 180. Therefore, to find the degree of the missing angle, you must add the angles given and then subtract your answer from 180.

#7
30+20=50
180-50=130
The missing angle from the triangle and the angle you are trying to find measure the same degree

#8
180-155=25
60+25=85
180-85=95
180-95=85

Since the sum of both angles should add up to 180 to form the angle of a straight line, You subtract the 95 from 180 to find the remainder.

3. Lin had $18 in her bank account. She bought a ticket to the movies for
$9, a bag of popcorn for $7 and a drink for $5. What is Lin's account balance
now?

Answers

$9 + $7 + $5 = $21 so $18 - $21 = account balance = -$3

what are the first three terms of the sequence defined by the following function?
f(n)=41+(n-1)^5

Answers

Answer:

        41, 40 and 9

Step-by-step explanation:

[tex]f(n)=41+(n-1)^5\\\\f(1)=41+(1-1)^5=41\\\\f(2)=41+(2-1)^5=41-1=40\\\\f(3)=41+(3-1)^5=41-32=9[/tex]

A cube has edge lengths of 11 ft. What is the volume of the cube?

Answers

Answer:

1331 ft³

Step-by-step explanation:

The volume of a cube = (edge length)³

From the above question,

Edge length = 11 ft

The volume of the cube = (11 ft)³

= (11 ft × 11 ft × 11 ft)

= 1331 ft³

The volume of the cube = 1331 ft³

 A set of measurements is taken and recorded and the table shown.


does the data in the table have a constant rate of change or a constant multiplier, and what is its value?

A.
Constant rate of change of 1.2

B.
Constant multiplier of 1.2

C.
Constant rate of change of 1.5

D.
Constant multiplier of 1.5

Answers

Answer;

The correct answer here is constant multiplier of 1.5

Step-by-step explanation:

To get the constant multiplier, we have to take a look at the y values

subsequent y values were obtained by multiplying the preceding y value with a term

So we have it that;

3.6/2.4 = 5.4/3.6 = 8.1/5.4 = 1.5

The correct answer here is constant multiplier of 1.5

whats 10.50x +64=300​

Answers

Answer:

74.5

Step-by-step explanation:

Peter has an average daily balance on his credit card of $127.50. His credit card charges 14.99% annual interest. What will his monthly finance charge be

Answers

Answer:

$1.59

Step-by-step explanation:

monthly finance charge = average daily balance x monthly interest

monthly interest = 14,99% / 12 = 1.249%

1.249% x $127.50 = $1.59

The volume of a cylinder is 117.1 cubic feet, and its height is 15 ft. Find the diameter of the base of the cylinder.

Answers

Answer:

3.15 ft

Step-by-step explanation:      

                                                                                              V

Volume of a cylinder:  πr²h.  Solving for r², we get r² = ---------

                                                                                             πh

Here, we get r² = (117.1 ft³) / (3.14·15 ft) = 2.48 ft² and r = √(2.48 ft²), or

1.58 ft, so that the diameter is 2r, or 3.15 ft

The diameter of the base of the cylinder is 3.15 ft.

Given triangle ADE shown below with overline BC || overline DE . if AB=16, BD=8, and DE = 30, which of the following is the length of overline BC
1) 20
2) 60
3) 15
4) 22

Answers

1) 20 is the correct answer. Since the lines are II everything is of the same ratio.

PLZ HELP!!!!!
Calculate x​

Answers

Answer:

x = 31

Step-by-step explanation:

The two triangles are similar, so [tex]\triangle{NPO} \sim \triangle{YZO}[/tex].

Vertex N matches up with vertex Y.

Vertex P matches up with vertex Z.

Vertex[tex]\frac{NO}{YO}=\frac{1}{4}\\\\\frac{x}{124}=\frac{1}{4}\\\\4x=124\\\\x=31[/tex] O matches up with itself.

Corresponding sides are in proportion.  To find the proportion between the two triangles, you use known sides from each.

[tex]\frac{NP}{YZ}=\frac{23}{92}=\frac{1}{4}[/tex] meaning the small triangle is 1/4 the size of the large one.

To find  x , notice that it is side NO which corresponds to side YO from the large triangle.

Who is correct?
PLease answer ASAP!! pls (:

Answers

Answer: Isaiah is correct because you can never be sure whether it’s gonna be a queen but you can be sure that the card could be red

Step-by-step explanation:

Determine how to translate triangle ABC to triangle A'B'C'

Answers

Do you still need the answer to this or nah?

What is the common ratio between successive terms in the sequence? 27,9,3,1, 1/3, ,1/9, 1/27

Answers

Answer:

1/3

Step-by-step explanation:

Take the second term and divide by the first

9/27 = 1/3

Take the third term and divide by the second

3/9 = 1/3

Check each subsequent ratio, we can see the common ratio is 1/3

1/3+a=5/4 what does a=

Answers

Answer:

A is equal to a=11/12

Step-by-step explanation:

A school guidance counselor is researching the number of high school students who play an online video game that is aimed at much younger children. She polls 100 seniors that regularly meet in her office to gather data for her study. Which statement best describes the results of this poll?
C is the answer

Answers

Answer:

C is the answer

Step-by-step explanation:

Answer:

C) The results of the poll are likely an underestimation of the number of high school students who play the game.

Step-by-step explanation:

I got it correct.

Please help,
NO LINKS PLEASE

Answers

Answer:the photo is to bleary

Step-by-step explanation:

How old am I if 500 reduced by 2 times
my age is 322?

Answers

Answer:

You are 89 years old.

Step-by-step explanation:

First I subtracted 322 from 500 which got me 178. Then I finally did 178 divided by 2 which got me 89.

Hope this helps you! :)

How many diagonals does a convex angle have?​

Answers

Two (A quadrilateral has two diagonals joining opposite pairs of vertices. For any convex polygon all the diagonals are inside the polygon but re entrant polygons some diagonals are outside of a polygon.)
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