Lindsey started a savings account with $260. After 4 weeks, she has $315 dollars. After
8 weeks, she had $370. What is the rate of change of money in her savings account per
week?

Answers

Answer 1

Answer:

$13.75

Step-by-step explanation:

0 weeks = 260

4 weeks = 315

8 weeks = 370

Every 4 weeks, the rate of change is $55 as can be seen by 315 - 260 = 55 and 370 - 315 = 55.

Per week, the rate of change is $13.75 This is because $55 ÷ 4 weeks = rate of change per week

55 ÷ 4 = 13.75


Related Questions

Please help me ASAP ​

Answers

Answer:

Step-by-step explanation:

Base 5 uses 0, 1 , 2, 3, 4

When we add 2+ 1 = 3

When we add 4 +3 = 7 = 5 +2 . 5 will be carried as 1

4 + 3= 12

In subtraction, 32 - 4

From 2 we cannot subtract 4. So, borrow 5 from 3. So, 2+5 = 7.

7-4=3

32 -4 = 23

I have attached the sums

Write an equation of the parabola in intercept form that passes through (-2,0.05) with x-intercepts of -7 and -3.

Answers

Answer:

  y = 0.01(x +7)(x +3)

Step-by-step explanation:

For intercepts p and q, the equation will be ...

  y = a(x -p)(x -q)

For the given intercepts, the equation is ...

  y = a(x +7)(x +3)

We can find the value of 'a' by using the given point:

  0.05 = a(-2+7)(-2+3) = 5a

  0.01 = a . . . . divide by 5

The complete equation is ...

  y = 0.01(x +7)(x +3)


A little help here thank you!!!

Answers

Answer:

∠B = 82°

Step-by-step explanation:

(see attached for reference)

recall the property that an exterior angle of a triangle is equal to the sum of its two remote interior angles.

in our case, the exterior angle is obtuse ∠A = 143°

the two remote interior angles are ∠C and ∠B

hence according to our definition above:

143° = ∠C + ∠B  (we are given that ∠C =61°)

hence

143° = 61° + ∠B

143° - 61° =  ∠B

∠B = 82°

Jill sold half her comics and then bought sixteen more. She now has 36. How many did she begin.

Answers

Answer: 10 I think

Step-by-step explanation: Jill sold half and you dont know how much it is you know that now she has 36, but before she bought 16 so 36 - 16 = 20 but she sold half

Answer:10 magazines

Step-by-step explanation:

36-16/2=m

20/2=m

10=m. m=magazine

WHO WANTS A BRAINLIEST?
A (-3.5,1.25) B (-5,-3) C (-4,2) (-4,0) (-4.5,-2.25)

Answers

Answer:

A

Step-by-step explanation:

Find the midpoint by using A and B.

Then use the midpoint and B to find the 3/4 point.

Find the midpoint of (-4,6) and (10,-10)

Answers

Answer:

(3,-2)

Step-by-step explanation:

10+4=14; 14/2=7

-4+7=3

x=3

6+10=16; 16/2=8

6-8=-2

y=-2

Answer:

(3,-8)

Step-by-step explanation:

m=x1+x2/2,y1+y2/2

m--4+10/2,-10-6/2

m=6/2,-16/2

m=3,-8

what is 1/4 to the power of 34???????

Answers

Answer:

I believe it is 3.3881318e-21 but you could round that

Step-by-step explanation:

Is the ration of 3/4 the same as the fraction of 3/4

Answers

Answer:

yes but there might be slightly change in it

Answer:

Yes 3/4 is the same as 3/4.

(I might be wrong)

Step-by-step explanation:

Step One: Rewrite the ratio as a fraction

[tex]3 : 4 = \frac{3}{4}[/tex]

Step Two: Reduce and simplify the fraction

This fraction is already reduced so no further work is needed

Hope this helped you!

A gym charges $45 per month and a $75 one-time starting fee. Which of these
will show how much it costs to join the gym for one year?
)
(45 x 12) + 75 = c
(45 + 75) x 12 =c
(75 - 45) x 12 = c
(75 x 12) + 45 = c

Answers

Answer:

(45 × 12) + 75 = c

Step-by-step explanation:

45 × 12 months + 75 starting fee

If A= -3, B= -7, C= 5, and D= 2, what does AB - CD= Question options: A.11 B.31 C. -11 D. -15

Answers

11, AB is -3(-7) which equals 21 and CD is 5(2) which is 10, 21-10=11. So your answer would be A

list out the problem of solution of communication in Nepal​

Answers

Answer:

the problem of solution of communication in Nepal are

Step-by-step explanation:

Usage of modern wireless and satellite based networking system keeping a backup networking system for the cases of nature disaster

10+x=19 need your help

Answers

Answer:

9

Step-by-step explanation:

10+x=19

move 10 over the =

x =19-10

x=9

Hey there!

ANSWER: [tex]x=9[/tex]EXPLANATION:

[tex]10+x=19[/tex]

To solve, you can just do 19 - 10.

[tex]19-10=9[/tex]

Now let's complete x.

[tex]10+x(9)=19\\10+9=19\\x=9(ANSWER)[/tex]

Hope this helps!

[tex]\text {-TestedHyperr}[/tex]

Round 45.396 to the nearest tenth

Answers

The answer would be 45.4

Answer:

Step-by-step explanation:

45.396

tenth place is 3

on the right of 3 is 9. 9 is higher than 5. Therefore 3 becomes a 4.

the answer is  45.4

How do I find the domain and range of a graph?​

Answers

The domain is the x-axis and the range is the y-axis.

To find the domain, you measure or count the widest part of this oval horizontally. So that is 3 units to the right of 0 and 3 units to the left of 0. I counted it exactly on the axis because that is the widest part of the oval.

To find the range, you again count or measure the widest part of the oval vertically. So that is 4 units above 0 and 4 units below 0.

Final Answer

D: -3 ≤ x ≤ 3

R: -4 ≤ x ≤4

Find the midpoint of the line segment joining the points (-1, -2) and (-3, 13).

The midpoint is

(Simplify your answer. Type an ordered pair)

Answers

midpoint =(X1+X2)/2 ,(Y1+Y2)/2

therefore=

( -1+-3)/2, (-2+13)/2

=(-4/2,11/2)

=(-2,5.5)

A horizontal line has points D, B, C. A line extends vertically from point B to point A.

Given that Ray B A bisects ∠DBC, which statement must be true?
a) m∠ABD = m∠ABC
b) AB ≅ BC
c) B is the midpoint of DC.
d) m∠DBC = 90°

Answers

Answer:

  a) m∠ABD = m∠ABC

Step-by-step explanation:

The meaning of angle bisector is that each of the created angles is congruent to the other:

  m∠ABD = m∠ABC

Answer:

A: m∠ABD = m∠ABC

A model of a plane is made using a scale of 1:5. If the wings of the model are 1.2m long, what is the actual length of the wings on the plane?

Answers

Answer:

  6 m

Step-by-step explanation:

Multiply your scale by 1.2 m:

  1 : 5 = 1.2 m : 6.0 m

The wings on the plane are 6.0 m long.

Which statement describes a disadvantage of Marnie paying a bill by telephone with a credit card or a debit card? Marnie will not have to find a stamp and a mailbox. Marnie will have to share her card account information. Marnie’s bill is paid immediately. Marnie may be eligible for a discount

Answers

Answer:

The Answer is B Marnie will have to share her card account information.

Plus I took this test so

Answer:

B) Marnie will have to share her card account information.

Step-by-step explanation:

I took the test on Edge

Find the remainder when x4+x3-2x2+x+1 is divided by x-1
(a)1
(b)5
(c)2
(d)3

Answers

Answer:

For example, if you want to find printable activities for third grade, click the "3" ... For each clock eliminated, the bedtime increases by one minute. ... Description: This activity requires students to tell time to the half-hour (e.g. 4:00, 5:30, 11:30).

Step-by-step explanation:

Miguel did the following math problem: 65 ∙ 64 = 369. Which of the following is a true statement? 1.He is correct. 2.He is incorrect because he should have subtracted the exponents. 3.He is incorrect because he should have multiplied the exponents. 4.He is incorrect because he multiplied the bases.

Answers

Answer:

He is incorrect.

Step-by-step explanation:

The correct answer is 4,160.

Answer:

3. He is incorrect because he should have multiplied the exponents.

Step-by-step explanation:

6∧5 × 6∧4 = 369 Incorrect

Correct: 6∧5 = 7776

6∧4 = 1296

7776 × 1296 = 10,077,696

1. He is not correct, therefore the first answer is wrong.

2. You do not subtract the exponents unless one of the exponents is negative and you have the same bases. You have the same bases in this equation, however, neither one of them are negative. Therefore, the second answer is wrong.

3. The third answer is correct because if you were adding the two terms together then you would add the exponents together then multiply the base as many times as needed. However, since you are multiplying the two terms together, you also need to multiply the exponents together. From there, you then multiply the terms and get your answer.

4. The fourth answer is also incorrect because you need to multiply the bases together in order to get a correct answer.

I hope this helps!

Help me please 20 is 1/10 of

Answers

Answer:

20 is 1/10 of 200

Step-by-step explanation:

20* 10 = 200

Answer:

the answer is 200/1

A computer programmer works 40 hours per week. what is the equation that relates to the number of hours "h" that the programmer works and the number of weeks "w" that the programmer spends working?​

Answers

Answer:

h = 40w

Step-by-step explanation:

40 per week

hours = 40 x amount of weeks

h = 40w

Answer: h = 40w

h is the total number of hours and w is the number of weeks.

Simplify 9x + 4(x + 2) - 5:

Answers

The answer is 68
Instructions: follow the bedmas rule of solving.

Answer:

Step-by-step explanation:

9x+4x+8-5

=13x+3

what is the gradient of the line 3x+y=4

Answers

Answer:

The slope is - 3

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

The equation is 3x+y = 4

To find the slope of the line we must first write the equation in the general form above

Make y the subject

That's

y = - 3x + 4

Comparing with the general equation above

Slope of the line = - 3

Hope this helps you

Are all fractions integers?

Answers

Answer:

No

Step-by-step explanation:

Fractions and decimals are not integers. Any and all whole numbers like 1, 2, 3... Or even negative numbers like -1, -2, -3 etc. are all integers. However any fractions, decimals, etc. are NOT integers.

Hope this helps and have a nice day!

Answer:

no

Step-by-step explanation: no fractions are integers bc the are not orginally positive or negative but u can put them on a number line

(i)Express 2x² – 4x + 1 in the form a(x+ b)² + c and hence state the coordinates of the minimum point, A, on the curve y= 2x² 4x+ 1.
The line x– y + 4 = 0 intersects the curve y= 2x² – 4x + 1 at points P and Q. It is given that the coordinates of Pare (3,7).

(ii)Find the coordinates of
(iii) Find the equation of the line joining Q to the mid-point of AP.

I already get the (i) but hav no idea with no.(ii) and (iii)

Can anyone help me? Thank you​

Answers

Answer:

(i). [tex]y = 2\, x^2 - 4\, x + 1 = 2\, (x - 1)^2 - 1[/tex]. Point [tex]A[/tex] is at [tex](1, \, -1)[/tex].

(ii). Point [tex]Q[/tex] is at [tex]\displaystyle \left(-\frac{1}{2},\, \frac{7}{2}\right)[/tex].

(iii). [tex]\displaystyle y= - \frac{1}{5}\, x + \frac{17}{5}[/tex] (slope-intercept form) or equivalently [tex]x + 5\, y - 17 = 0[/tex] (standard form.)

Step-by-step explanation:

Coordinates of the Extrema

Note, that when [tex]a(x + b)^2 + c[/tex] is expanded, the expression would become [tex]a\, x^2 + 2\, a\, b\, x + a\, b^2 + c[/tex].

Compare this expression to the original [tex]2\, x^2 - 4\, x + 1[/tex]. In particular, try to match the coefficients of the [tex]x^2[/tex] terms and the [tex]x[/tex] terms, as well as the constant terms.

For the [tex]x^2[/tex] coefficients: [tex]a = 2[/tex].For the [tex]x[/tex] coefficients: [tex]2\, a\, b = - 4[/tex]. Since [tex]a = 2[/tex], solving for [tex]b[/tex] gives [tex]b = -1[/tex].For the constant terms: [tex]a \, b^2 + c = 1[/tex]. Since [tex]a = 2[/tex] and [tex]b = -1[/tex], solving for [tex]c[/tex] gives [tex]c =-1[/tex].

Hence, the original expression for the parabola is equivalent to [tex]y = 2\, (x - 1)^2 - 1[/tex].

For a parabola in the vertex form [tex]y = a\, (x + b)^2 + c[/tex], the vertex (which, depending on [tex]a[/tex], can either be a minimum or a maximum,) would be [tex](-b,\, c)[/tex]. For this parabola, that point would be [tex](1,\, -1)[/tex].

Coordinates of the Two Intersections

Assume [tex](m,\, n)[/tex] is an intersection of the graphs of the two functions [tex]y = 2\, x^2- 4\, x + 1[/tex] and [tex]x -y + 4 = 0[/tex]. Setting [tex]x[/tex] to [tex]m[/tex], and [tex]y[/tex] to [tex]n[/tex] should make sure that both equations still hold. That is:

[tex]\displaystyle \left\lbrace \begin{aligned}& n = 2\, m^2 - 4\, m + 1 \\ & m - n + 4 = 0\end{aligned}\right.[/tex].

Take the sum of these two equations to eliminate the variable [tex]n[/tex]:

[tex]n + (m - n + 4) = 2\, m^2 - 4\, m + 1[/tex].

Simplify and solve for [tex]m[/tex]:

[tex]2\, m^2 - 5\, m -3 = 0[/tex].

[tex](2\, m + 1)\, (m - 3) = 0[/tex].

There are two possible solutions: [tex]m = -1/2[/tex] and [tex]m = 3[/tex]. For each possible [tex]m[/tex], substitute back to either of the two equations to find the value of [tex]n[/tex].

[tex]\displaystyle m = -\frac{1}{2}[/tex] corresponds to [tex]n = \displaystyle \frac{7}{2}[/tex]. [tex]m = 3[/tex] corresponds to [tex]n = 7[/tex].

Hence, the two intersections are at [tex]\displaystyle \left(-\frac{1}{2},\, \frac{7}{2}\right)[/tex] and [tex](3,\, 7)[/tex], respectively.

Line Joining Point Q and the Midpoint of Segment AP

The coordinates of point [tex]A[/tex] and point [tex]P[/tex] each have two components.

For point [tex]A[/tex], the [tex]x[/tex]-component is [tex]1[/tex] while the [tex]y[/tex]-component is [tex](-1)[/tex].For point [tex]P[/tex], the [tex]x[/tex]-component is [tex]3[/tex] while the [tex]y[/tex]-component is [tex]7[/tex].

Let [tex]M[/tex] denote the midpoint of segment [tex]AP[/tex]. The [tex]x[/tex]-component of point [tex]M[/tex] would be [tex](1 + 3) / 2 = 2[/tex], the average of the [tex]x[/tex]-components of point [tex]A[/tex] and point [tex]P[/tex].

Similarly, the [tex]y[/tex]-component of point [tex]M[/tex] would be [tex]((-1) + 7) / 2 = 3[/tex], the average of the [tex]y\![/tex]-components of point [tex]A[/tex] and point [tex]P[/tex].

Hence, the midpoint of segment [tex]AP[/tex] would be at [tex](2,\, 3)[/tex].

The slope of the line joining [tex]\displaystyle \left(-\frac{1}{2},\, \frac{7}{2}\right)[/tex] (the coordinates of point [tex]Q[/tex]) and [tex](2,\, 3)[/tex] (the midpoint of segment [tex]AP[/tex]) would be:

[tex]\displaystyle \frac{\text{Change in $y$}}{\text{Change in $x$}} = \frac{3 - (7/2)}{2 - (-1/2)} = \frac{1}{5}[/tex].

Point [tex](2,\, 3)[/tex] (the midpoint of segment [tex]AP[/tex]) is a point on that line. The point-slope form of this line would be:

[tex]\displaystyle \left( y - \frac{7}{2}\right) = \frac{1}{5}\, \left(x - \frac{1}{2} \right)[/tex].

Rearrange to obtain the slope-intercept form, as well as the standard form of this line:

[tex]\displaystyle y= - \frac{1}{5}\, x + \frac{17}{5}[/tex].

[tex]x + 5\, y - 17 = 0[/tex].

The temperature of a freezer started at 18°C after cooling for a few hours the freezer had a temperature of -12°C what is the difference between the new colder temperature in the original temperature

Answers

The answer is 6 degrees Celsius

Answer:

-273.15

Step-by-step explanation:

trust me and ull see

What is the solution to this equation?
16x- 8x-12 = 24 + 20
O A. x = 5
O B. x=7
O c. x = 4
O D. x = 6

Answers

Answer:

x=7

Step-by-step explanation:

16x-8x-12= 24+20

(16x-8x)-12= 24 +20

8x - 12= 24 +20

8x = 24+ 20 + 12

8x = 54

x = 54/8

x= 7

Answer:

x=7

Step-by-step explanation:

1. combine like terms

2. isolate x

3. divide by 8 to get x

Find the sum of 4x^2
-4x + 10 and 2x^2+ 5x – 8.

Answers

Answer:

6x2+x+2

Step-by-step explanation:

Mark Brainliest?

Si en una proporción geométrica continua, la media geométrica es 24 y la razón es 2/3 ¿Cuánto es la diferencia de los extremos?. a)18 b)20 c)24 d)16 e)12

Answers

yo creo que es C-24 de todos
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