Tia takes $50 from her bank account to pay for bus fare for the month. She does this each month for 7 months in a row. Which equation models this situation and represents the change it causes in Tia's
bank balance?
(-$50) + 7 =543
(-550) * 7 =-$350
А
B
С
$50 (-7) = $350
D
(-850) - 7 =-557

Answer:

The formula for calculating a z-score is is z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation. As the formula shows, the z-score is simply the raw score minus the population mean, divided by the population standard deviation.

Step-by-step explanation:

Answer:

3.4 pages per minute

Step-by-step explanation:

Divide your number of pages by the minutes to calculate the unit rate.

Answer:

3.4 : 1

Step-by-step explanation:

3.4 pages in 1 minute

Answer:  -4

Step-by-step explanation:

- + - = +

+ (+) += -

- (+) + = -      

Answer:

a,d,e

Step-by-step explanation:

sorry if im wrong :(

Answer:

39

Step-by-step explanation:

F(x)=3x12

Plug in F(3)=3x12

Simplyfi 3x .  12    = 39

Answer:

b) -4

Step-by-step explanation:

Well your at 2 and going to -2 so on a number line you be going back or left.

Going two left gets you to zero and going two more get you -2. So in total you went back four and that be represented as -4.

Answer:

B and E are true statements

Answer:

let the length of each of the 2 equal sides= n

then n+n+(n-5)=49

3n=44

n=44/3

Answer:

let the length of each of the 2 equal sides= n

then n+n+(n-5)=49

3n=44

n=44/3

Answer:

6,10

Step-by-step explanation:

Easy points thanks

Answer: y=-2x+6 where the slope is -2/1 and the y intercept which is b is 6.

Step-by-step explanation:

Answer:

51

Step-by-step explanation:

Answer:

$20.40

Step-by-step explanation:

20% off means that the new price of the skirt will be 80% of the original price:

$30(100%  – 20%) = $30(80%)

Converting the percent to a decimal gives:

$30(0.8) = $24.00

There is an additional 15% off the sale price of $24.00, so the final price is 85% of the sale price:

$24(100%  – 15%) = $24(85%)

Again converting the percent to a decimal gives:

$24(0.85) = $20.40

Answer:

83

Step-by-step explanation:

The measure of the side v for the triangle is 82.8 inches.

One of the earliest areas of mathematics is geometry, along with arithmetic. It is concerned with spatial characteristics like the separation, shape, size, and relative placement of objects.

Given that in ΔUVW, w = 79 inches, u = 57 inches and ∠V=73°. The measure of the side v is calculated by the formula,

v² = u² + w² - 2uvcosv

v² = ( 57)² + (79)² - 2 x 57 x 79 x cos73

v² = 6856.9

v =√6856.9

v = 82.8 inches

Hence, the value of v will be 82.8 inches.

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Answer:

carol and peter make $231

Step-by-step explanation:

16 x 2 = 32

15 x 3 = 45

32 + 45 = 77

77 x 3 = 231

Answer:

92 for both $48 for carol $45 for peter

Step-by-step explanation:

Answer:

It's simple.

So, 30 is half of 15. And 3x5=15 So, I think the best estimate would be 15+15=30 pieces.

Meaning the two pieces are both of the fiveteens.

Answer:I need help with those too

Step-by-step explanation:

Answer:

y = -3x + 7

General Formulas and Concepts:

Pre-Algebra

Algebra I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Slope-Intercept Form: y = mx + b

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (1, 4)

y-intercept (0, 7)

Step 2: Find slope m

Step 3: Write linear function

y = -3x + 7

Answer: She could start a you tube channel and teach there u get way more money anyways. one of my history teachers teachs in a school and has a you tube channel.

Step-by-step explanation:

Answer:

well first

why does ernie want be a teacher in the first place if one of the main aspects of it is dealing with kids?

it also depends on what subject he'd want to teach

if he doesnt want to physically be in a school he can just do online teaching yk

Answer: hi friend! Pretty sure you know how to estimate right? Well add all or the numbers together then estimate the sum

Step-by-step explanation:

Answer:

22.60

Step-by-step explanation:

Answer:

the answer is d add 8x to both sides

Step-by-step explanation:

The missing step in step 2 is to add 8x to both sides of the inequality.

An inequality shows the relationship between two mathematical expressions which is denoted by the inequality signs such as (<, >, ≤, ≥).

The inequality given is expressed as:

5 - 8x < 2x + 3

5 - 8x - 3 < 2x + 3 - 3

2 - 8x  < 2x

So, we need to add + 8x to both sides, in order to eradicate the variable (8x) from the left-hand side.

i.e.

2 - 8x + 8x < 2x + 8x

2 < 10x

In step 3, we divide both sides by the coefficient of x.

i.e.

[tex]\mathbf{\dfrac{2}{10} < \dfrac{10x}{10}}[/tex]

[tex]\mathbf{0.2 < x}[/tex]

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Answer:

Phone B

Step-by-step explanation:

It is around the same cost as Phone C, but has unlimited data (which means unlimited gigs)

Answer:

B

Step-by-step explanation:

Charge of 9 gigs for A

find slope:

125 - 95/5 - 3 = 30/2 = $15/month

use point slope form with point (3,95) and slope 15:

y - y1 = m(x - x1)

y - 95 = 15(x - 3)

y - 95 = 15x - 45

 + 95           +95

y = 15x + 50

put 9 for x, gigs, in the new equation:

y = 15(9) + 50

y = 135 + 50

y = 185

$185 for opt A

Charge of 9 gigs for B

slope = 0

there is the fee of 150 so the equation is:

y = 0x + 150

Next find the price for 9 gigs

y = 9(0) + 150

y = 150

$150 for opt B

Charge of 9 gigs for C

use graph and the cost is about $157

A: $185

B: $150

C: $157

Answer: g(x) = 3*Ix + 2I - 5

Step-by-step explanation:

First, let's define the transformations in a general way.

A vertical stretch of a scale factor A, is written as:

g(x) = A*f(x)

A vertical shift of A units is written as:

g(x) = f(x) + A

if A is positive, the shift is up, if A is negative, the shift is down.

A horizontal shift of A units is written as:

g(x) = f(x - A)

If A is positive, the shift is to the right.

If A is negative, the shift is to the left.

Then we start with the absoulte value parent function f(x) = IxI

"The graph of the absolute value parent function is vertically stretched by a factor of three"

We start with:

g(x) = 3*f(x)

"then shifted two units left"

g(x) = 3*f(x - (-2))

"and five units down."

g(x) = 3*f(x + 2) - 5.

and knowing that f(x) = IxI, we have:

g(x) = 3*Ix + 2I - 5

Answer:

ΔABC ≅ ΔQPR

Step-by-step explanation:

if you were to reflect it, they would line up also A ≅ Q because their angles are the same and I know that because of the markings, they both have one arc and B and P both have two arcs meaning they are congruent and C and R both have three arcs so they are congruent.

Step-by-step explanation:

the electromagnet lasts only as long as there is supply of electric current

Answer:

The answer is 48

Step-by-step explanation:

180 degrees in a triangle the bottom two sides are equal and so divide the remaining 96 degrees by 2

Answer:

324

Step-by-step explanation:

Answer:

(2^6)(x^9^6) /  1814

Simplifies to:

1 /  5856458868470016^ x531441

=

1 /  5856458868470016 ^x531441    

Step-by-step explanation:

Answer:

Some of this doesn't even exist :/

Answer:

x=8 mabye

Step-by-step explanation:

Answer:

u = 24

Step-by-step explanation:

[tex]\frac{u}{4}[/tex] + 12 = 18

   -12    -12

[tex]4*\frac{u}{4}[/tex] = 6*4

u = 24

Answer:

u = 24

Step-by-step explanation:

Original Equation:

u/4 + 12 = 18

Subtract 12 from both sides

u/4 = 6

To separate the u from the 4, multiply both sides by 4

u = 24

Hope this helps :)

B- you can't divide by 0