Kadin wants to buy a laptop that costs $500. He has already saved $80. He decides to save $30 each week. What is the least number of weeks he should save for to achieve his goal?

Answer:

Step-by-step explanation:

A

Answer:

32

Step-by-step explanation:

p=sample proportion

p=number of defective parts/size of sample = 4/25

Estimate:

(sample proportion)x(size of population) = (4/25)x(200)=32

fish tested = 5x5=25

fish population = 40x5=200

==============================================

Explanation:

Add up the arc measures and divide by 2 to get the angle formed by the two chords.

angle AOB = (arc AB + arc CD)/2

angle AOB = (34 + 25)/2

angle AOB = 59/2

angle AOB = 29.5 degrees

Answer:

0

x

16

-5

5.5

Step-by-step explanation:

Answer:

x:5⁰

y:52⁰

Step-by-step explanation:

triangle:180⁰

the triangleis isoceles triangle so y:52⁰

so B is 72⁰

(14x+6)⁰=(14(5)+6)⁰=72⁰

Step-by-step explanation:

y = ¼x + 2

m1 = ¼

m of line perpendicular = m2

the formula is : m1×m2 = -1

=> m2 = -1 ÷ m1

= -1 ÷ ¼ = -4

so, the equation is :

y = -4x - 7 (option A)

Answer:

Step-by-step explanation:

all of the statements are true

Answer:

48

Step-by-step explanation:

Because it’s the biggest number

Answer:

8 1/3

Step-by-step explanation:

x+(x-1)+(x+2)=29

3x+1=29

3x=28

x=9 1/3

9 1/3-1= 8 1/3

Answer:

X < 7/2

Step-by-step explanation:

Move the variable to the left, separate into possible cases , solve, find the intersections, find the union, and then you get your solution.

Step-by-step explanation:

Given that:

|2x-7| = 7-2x

⇛2x-7 = 7-2x or -(7-2x)

since |x| = a ⇛ x = a or x = -a

⇛2x-7 = 7-2x or 2x-7 = 2x-7

Shift all variables on LHS and constant on RHS, changing it's sign.

⇛2x+2x = 7+7

Add the values on LHS and RHS.

⇛4x = 14

Shift the number 4 from LHS to RHS.

⇛x = 14/4

Write the fraction in lowest form by cancelling method.

⇛ x = {(14÷2)/(4÷2)}

⇛x = 7/2

There is no solution for negative value

x = 7/2

Please let me know if you have any other questions.

Answer:

length = 12.5 in, width = 12.5 in, Area = 156.25 in²

Step-by-step explanation:

To get the maximum area, the wire can be shaped into a square. We can say that the length and width of the rectangle must be equal to each other, and call this value "x".

Therefore, we can write an equation for the perimeter:

The area of the rectangle is calculated using the formula:

Or in our case, the area of the rectangle is the area of a square:

Substitute x = 12.5 into this equation.

The maximum area that can be formed from the wire is 156.25 in², and the dimensions of the rectangle are 12.5 x 12.5 in.

Answer:

$23

Step-by-step explanation:

First, we find what is 15% of $20.

0.15 times 20 is 3. Therefore, we know there was a markup of $3.

Then, we add the mark-up to the cost to store, and get $23.

So, the selling price is $23.

Answer:

just do 400 times 400 witch is 1600

Step-by-step explanation:

Answer:

3, 9 is your answer

Answer:

(-3, 3)

Step-by-step explanation:

The points are easy to plot on a graph to see where the other endpoint should be.  See the attached image.

You can also look at the problem this way:

Start at the midpoint and go to the given endpoint, paying attention to how far right/left and up/down you go, a bit like following streets and avenues.

From (-1, 5) TO (1, 7), you go right 2, then up 2.  Now go back to the midpoint and reverse those two motions.

From (-1, 5) go left 2, then down 2.  You are at the other endpoint, (-3, 3).

Answer:

x = [tex]\frac{8\sqrt{3} }{3}[/tex]

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin60° = [tex]\frac{\sqrt{3} }{2}[/tex]

sin60° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{4}{x}[/tex] = [tex]\frac{\sqrt{3} }{2}[/tex] ( cross- multiply )

x × [tex]\sqrt{3}[/tex] = 8 ( divide both sides by [tex]\sqrt{3}[/tex] )

x = [tex]\frac{8}{\sqrt{3} }[/tex] × [tex]\frac{\sqrt{3} }{\sqrt{3} }[/tex] ( rationalising the denominator )

x = [tex]\frac{8\sqrt{3} }{3}[/tex]

Answer:

$2,003.38

Step-by-step explanation:

Answer:

[tex]V=3367.57\ cm^3[/tex]

Step-by-step explanation:

The diameter of a sphere, d = 18.6 cm

Radius, r = 9.3 cm

We need to find the volume of the sphere. The formula for the volume of a sphere is given by :

[tex]V=\dfrac{4}{3}\pi r^3\\\\=\dfrac{4}{3}\times 3.14\times (9.3)^3\\\\=3367.57\ cm^3[/tex]

So, the volume of the sphere is equal to [tex]3367.57\ cm^3[/tex].

Answer:

10x+14b+11

Step-by-step explanation:

3x+8b+7x+11+6b

3x+7x+8b+6b+11 = Regroup them

10x+14b+11 = Combine like terms

The requried, 3x+8b+7x+11+6b simplifies to 10x + 14b + 11.

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. For example, simplifying an algebraic expression might involve combining like terms, factoring, or using the distributive property

To combine like terms 3x+8b+7x+11+6b, we can add the coefficients of x, add the coefficients of b, and add the constant terms. So we have:

3x + 8b + 7x + 11 + 6b = (3x + 7x) + (8b + 6b) + 11

Combining the like terms:

= 10x + 14b + 11

Therefore, 3x+8b+7x+11+6b simplifies to 10x + 14b + 11.

Learn more about simplification here:

https://brainly.com/question/12501526

#SPJ2

Answer:

I think b?

Step-by-step explanation:

Answer:

157.38

Step-by-step explanation:

if you add all those numbers you will get 1888.59/12= 157.38

Answer:

120.105m^2

Step-by-step explanation:

Given data

Diameter of circular bed=  24+3m = 27m

radius= 27/2= 13.5 m

Diameter of side walk = 12

radius= 24= 12 m

Hence the area of the sidewalk is

Area= area of circular bed- area of side walk

Area=πR^2-πr^2

Area=π(R^2-r^2)

Area=π(13.5^2-12^2)

Area= 3.14(182.25-144)

Area= 3.14(38.25)

Area=120.105m^2

Hence the area of the side walk is 120.105m^2

Answer:

it has to be the 4 one I did this question before

Answer:

Eric rode 2 more miles per week than Kim rode.

Step-by-step explanation:

Find how many miles per week Kim rode by dividing the number of miles she rode by the number of weeks:

135/9

= 15

Find how many miles per week Eric rode:

102/6

= 17

So, Kim rode 15 miles per week and Eric rode 17 miles per week.

The answer is Eric rode 2 more miles per week than Kim rode.

Answer:

A.

Step-by-step explanation:

Answer:

4x-20

Step-by-step explanation:

2x + 2x =4x

10 + (-30) = -20

put it together!

4x-20

(i hope thats the answer form u were asking for) xoxo raina

Answer:

[tex]\huge\boxed{\sf 4x-20}[/tex]

Step-by-step explanation:

[tex]\sf (2x+10)+(2x-30)\\\\Resolving \ Parenthesis\\\\= 2x+10+2x-30\\\\Combining \ like \ terms\\\\= 2x + 2x + 10-30\\\\= 4x -20\\\\\rule[225]{225}{2}[/tex]

Hope this helped!

Answer:

Scale factor is -3

so,

243x^7

-729x^8

2187^9