Mathematics High School

Shawna is saving money to buy a new laptop. She starts her savings with $64. Each week, she adds another $17 to her savings. Graph the relationship that models the amount of money Shawna is saving. If her laptop costs $589, after how many weeks will she be able to afford the laptop?

Answers

Answer 1

Answer:

4 weeks

Step-by-step explanation:

Related Questions

Add. 8x - 7 + 6x + 8
Help. I might be dumb for not knowing this but please help

Answers

Answer:

Step-by-step explanation:

Answer:

14 x + 1

Step-by-step explanation:

You aren't dumb, your teacher can't teach!

First we must add the x values together:

8x - 7 + 6x + 8

8 + 6 = 14

14x -7 + 8

Now we add the constants (regular numbers):

14x -7 + 8

-7 + 8

14x +1

There we go!

8x -7 + 6x +8

14x +1

Which graph below correctly shows the two lines on the same axes ?

Answers

Answer:

The one in the top left corner I THINK

Step-by-step explanation:

It is on baisically the same line and makes the most sense to ME.

DO NOT PICK ME IF YOU ARE NOT SURE!!!

help pleae look at the picture!

Answers

line a and b are perpendicular

x²-6x
Whats the answer?

Answers

Answer: x(x−6)

Step-by-step explanation:

Answer:

(x+0)(x-6) OR x(x-6)

Step-by-step explanation:

AC 1*0...AC=0

B -6...B=-6

AC 0*-6

B 0-6

(x+0)(x-6) OR x(x-6)

m=2/3; passes through the point (3,-1)
your response will be the number value for b

Answers

9514 1404 393

Answer:

-3

Step-by-step explanation:

The "b" is the y-intercept in the slope-intercept form ...

y = mx + b

Filling in the given values, we can find b.

-1 = (2/3)(3) +b

-1 = 2 + b . . . . simplify

-3 = b . . . . . . . subtract 2

The value for b is -3.

Find the slope of the line passing through each of the following pairs of points.

(5, 0), (−3, 0)

Answers

Answer:

Step-by-step explanation:

m= y2-y1/x2-x1

=0-0/-3-5

=0/-8

Answer:

Slope = 0

Step-by-step explanation:

In a Normal model, what percent of data is between -1 and +1 standard deviations of the mean?

Answers

Answer:

It's 99. 7% 95% and 68% for std dev respectively

Give brainliest thanks

Bob went out to dinner and paid a 15% tip on a $20 meal? How much is the total bill?

Answers

Answer:

Step-by-step explanation:

15% of 20 = 3 then add the 3 to the 20 to get 23

23Answer:

Step-by-step explanation:

15/100*20 = 3

20+3 = 23

Craig and Jeff are comparing their plans for downloading songs. Craig pays a monthly fee of $5.50 and then $0.25 per song he downloads. Jeff
pays $0.80 for each song he downloads. What number of downloaded songs result in Craig and Jeff having the same monthly cost?

Answers

Answer:

10 songs

Step-by-step explanation:

Let number of songs Craig and Jeff downloaded be s

5.50 + 0.25s = 0.80s

5.50 = 0.55s

s = 10

HELLLLLLLLLLLPPPPPPPPP

Answers

Answer:

there is no quick way around this. U need to plug in -4,2,8 into x value into the function, and see what y returns to

Step-by-step explanation:

Michael consumes a 16 ounce bag of potato chips and 12 ounce bag of pretzels every day after school. How many more ounces of potato chips than pretzels will Michael have eaten at the end of a 5 day school week?
A.
20 ounces
B.
80 ounces
C.
60 ounces
D.
28 ounces

Answers

Answer:

Step-by-step explanation:

WILL GIVE BRAINLIEST.
Find the equation of the line. Use the exact numbers.

Equation: y = __ x + __

Answers

Use rise/ run for (mx), then use y intercept for b, y=1/2x-3

Answer:

Step-by-step explanation:

y=1/2x-3

1) The value of y varies directly with x. If x = 3, then y = 13.
Show your work for finding the value of x when y = 39?

Answers

Answer:

When y is 39 x is 3.

Step-by-step explanation:

Proportions!

x = 3

y = 13

We need to find our multiplier first. How did 13 turn into 39?

39/13 = 3

13 * 3 = 39

We multiplied by 3!

Now we multiply x by three to keep the propotion, proportional!

x= 3

(3) * 3 = 9

Now we make the proportion

3 : 39

When y is 39 x is 3.

Consider Brainliest! Hope this helped!

A rectangular field is to be enclosed by a fence and divided
into two parts by another fence. Find the maximum area
that can be enclosed and separated in this way with 800 m
of fencing

Answers

Answer:

80000 square meters

Step-by-step explanation:

perimeter + dividing fence = 800

let a = length

let b = width

let c = length of dividing fence

perimeter = 2*a + 2*b

let's say...

c is the same as the length

2a + 2b + c = 800

2a + 2b + a = 800

3a + 2b = 800

area = length*width

area = a*b

area / b = a

3*(area/b) + 2b = 800

3*(area/b) = 800 - 2b

area/b = (800 - 2b)

area = (800 - 2b)*b

To make the area large, we make the right hand side large.

800b - 2b^2

If you put in terms of x, y it looks like a downward opening parabola, so the max area is at the vertex. Half way between the roots.

y = -2x^2 + 800x

y = -x^2 + 400x

0 = x*(-x + 400)

roots are x= 0 and x = 400

vertex is at x, aka b = 200

area at b=200 is (800 - 400)*200 = 80000

and a is area/b... 80000/400 = 200

i need this asap! will give a thanks and brainliest to whoever answers !!

Answers

Answer:

10 spiders

18 grasshoppers

Write the equation of the line that has a y-intercept of (0,4) and a slope of 2.

Answers

Answer:

y=2x+4

Step-by-step explanation:

the y-intercept is the y value of the point given. in the slope form, 2 would be your m

Philip's rectangular deck is 5 yards wide. The ratio of the width to the length is 4 to 5. What is the approximate length of Philip's deck in feet? Hint: 1 yard = 3 feet.

Answers

Answer:

18.75 feet

Step-by-step explanation:

Step 1

we find the length of Philip's rectangular deck in yards

The ratio of the width to the length is 4 to 5.

Philip's rectangular deck is 5 yards wide.

Hence,

Hence:

4/5 = 5/x

Cross Multiply

4x = 5 × 5

4x = 25

x = 25/4

x = 6.25 yards

The length of Philip's field = 6.25 yards

Hint: 1 yard = 3 feet.

Converting the yard to feet

1 yard = 3 feet

6.25 yards = x

Cross Multiply

x = 6.25 × 3 feet

x = 18.75 feet

Therefore, the length of Philip's field in feet = 18.75 feet

Solve by substitution x-7y=7 6x-7y=-28

Answers

Answer:

(-7, -2)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define systems

x - 7y = 7

6x - 7y = -28

Step 2: Rewrite systems

x = 7y + 7

6x - 7y = -28

Step 3: Solve for y

Substitute: 6(7y + 7) - 7y = -28Distribute 6: 42y + 42 - 7y = -28Combine like terms: 35y + 42 = -28Isolate y term: 35y = -70Isolate y: y = -2

Step 4: Solve for x

Define original equation: x - 7y = 7Substitute in y: x - 7(-2) = 7Multiply: x + 14 = 7Isolate x: x = -7

And we have our answer!

Darnell's car used 8 gallons of gasoline to travel 340 miles. After a mechanic worked on the car, it used 7 gallons of gasoline to travel 350 miles. How many more miles per gallon did Darnell's car travel after the mechanic worked on it?

Answers

Answer:

7.5 miles per gallon

Step-by-step explanation:

Given that:

8 gallons of gasoline traveled 340 miles

After being worked on by the mechanic :

7 gallons travels 350 miles

How many more miles per gallon did Darnell's car travel after the mechanic worked on it?

Obtain the unit mile traveled per gallon before and after the mechanic worked on the car :

Miles per gallon before being worked on by mechanic :

340 miles / 8 gallons = 42.5 miles per gallon

Miles per gallon after being worked on by mechanic :

350 miles / 7 gallons = 50 miles per gallon

(50 - 42.5) = 7.5 miles per gallon

Hence, vehicle moved 7.5 more miles per gallon after bwing worked on by mechanic.

help plz i'll give braineys

Answers

Answer:

c. 2/3

Step-by-step explanation:

the value of the number marked on the number line is 4/6, which simplifies down to 2/3.

1 + ( -6 ) = -3 + d how do i solve this

Answers

Is there any variables?

The height of a triangle is one-third of its base. If the area is 121.5ft^2, what is the height of the triangle?

Answers

it’s too long to explain so just look at the picture, hope it helps.

Determine A:B:C, if A:B= 2:3 and B:C =4: 5

Answers

I’m confused what we are suppose to do

Will give brainliest.

Answers

Answer:

y = -2/3x +3

Step-by-step explanation:

rounding to 1 significant figure, estimate the answers to these questions:
a)
78 x 92
b)
615 x 38
c)
423 x 764

Answers

a. Is 7,176

b. 23,370

c. 323,172

IL GIVE BRAINLIST!! PLEASE HELP! THERES 2 ANSWERS JUST SAYING!!

Answers

Answer: Option 2

Pls mark me brainilest!

Step-by-step explanation:

Twelve large bottles of water cost $9.How many bottles can you buy for $3?

Answers

Answer: 4 large bottles of water for $3.

Step-by-step explanation: To find how many large water bottles you can buy with $3, you’ll have to divide 12 by 3 which equals to 4. You can check your answer by multiplying 4 x 3 which equals to 12, which is the original amount of large water bottles you can buy for $9.

If a figure is dilated by a scale factor of 6, the perimeter of the figure will change by factor of
A.3
B.6
C.36
D.12

Answers

I think the correct answer is c

Answer:

Step-by-step explanation:

The state of Colorado covers about 1.04 x 10^5 square miles. The Indian Ocean covers about 2.808 x 10^7 square miles. How many times bigger is the Indian Ocean than Colorado?

Answers

Answer:

27976000

Step-by-step explanation:

1.04 x 10^5=104000, and 2.808 x 10^7=28080000

28080000-104000=27976000

that's what I think, did this help

Which expression is equal to 5 6 (6 is an exponent).

6x5

36x6x6x6

25x5x5x5

125x125

Answers

Answer: 125x125

Step-by-step explanation:

125 x 125 is the correct answer. Both equal 15,625.

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