Estimate a 15% tip on a dinner bill of $61.81 by first rounding the bill amount to the nearest ten dollars.

Answer:

1. The y-intercept 8 means you start off with $8. The slope 1/4 means how much money you have to pay for the amount of tickets purchased for carnival games.

2. The y-intercept 2 means the number of chapters you started reading and the slope 5/4 means the number of chapters you read per day.

3. The y-intercept 3 means the inital (start) cost of a muffin delivery and the slope 2 means the cost of each muffin delivery for the number of muffins you ordered.

Number 3 on the slope part might be the other way around if I'm wrong :)

Answer: 10 CD's

Step-by-step explanation:

Given

Tom can  burn a CD in  [tex]\frac{4}{5}\ \text{of an hour}[/tex]

If he has 8 spare hours in the week, he can burn

[tex]\Rightarrow 8\div \frac{4}{5}=\dfrac{8}{\frac{4}{5}}\\\Rightarrow \dfrac{8\times 5}{4}=2\times 5=10\ \text{CD}[/tex]

Answer:

A

Step-by-step explanation:

To find the perpendicular line you need to find the negative reciprocal of 4/7x which is -7/4x, so A is the correct answer

I hope this helps!!

Answer:

Step-by-step explanation:

a) 3n+3n+3=141, 6n+3=141

b) 6n+3=141, 6n=138, n=23

c) 3n and 3n+3, 3(23) and 3(23)+3, 69 and 72

Answer: 1/12 of the box

Step-by-step explanation:

On Monday the dog ate 3/12 of the treats in the box and on Tuesday ate 2/12 of the treats in the box.

The answer to this question is the difference between both these fractions:

= 3/12 - 2/12

= 1/12 of the box

Answer:

10-16x+56=15x+21

66-16x=15x+21

66-21=15x+16 x

45=31x

x=45/31

Answer:

Answer:

2.215=2 43/200

Step-by-step explanation:

Showing the work

Rewrite the decimal number as a fraction with 1 in the denominator

2.215=2.215/1

Multiply to remove 3 decimal places. Here, you multiply top and bottom by 103 = 1000

2.215/1×1000/1000=2215/1000

Find the Greatest Common Factor (GCF) of 2215 and 1000, if it exists, and reduce the fraction by dividing both numerator and denominator by GCF = 5,

2215÷5/1000÷5=443/200

Simplify the improper fraction,

=2 43/200

In conclusion,

2.215=2 43/200

Answer:

[tex]\frac{731}{330}[/tex]

Step-by-step explanation:

We require 2 equations with the repeating numbers placed after the decimal point.

let x = 2.2151515... ( multiply both sides by 10 and 1000 )

10x = 22.1515.... → (1)

1000x = 2215.1515.... → (2)

Subtract (1) from (2) thus eliminating the repeating decimal

990x = 2193 ( divide both sides by 990 )

x = [tex]\frac{2193}{990}[/tex] = [tex]\frac{731}{330}[/tex]

Thus

2.2151515..... = [tex]\frac{731}{330}[/tex]

Answer:

Dimensions are:

Length = 4 ; width = 10

or

Length = 10 ; width = 4

Step-by-step explanation:

let the length = L

let the width = W

we are given the following:

area of rectangle = L × W = 40 m² - - - - - - ( 1 )

perimeter of a rectangle = 2L + 2W = 28 m - - - - - ( 2 )

from equation (2)

2L + 2W = 28

2L = 28 - 2W

dividing both sides by 2

(2L = 28 - 2W) ÷ 2

L = 14 - W  - - - - - - (3)

Next, let us replace the value of L in equation 1 with equation 3

L × W = 40 - - - - (1)

where L = 14 - W

(14 - W) × W = 40

14W - W²  = 40

0 = W² - 14W + 40

solving the quadratic equation

using completing the squares method

W² - 14W + 40

W² [-4W - 10W] + 40 =  0

(W² - 4W) - (10W + 40) = 0

W(W - 4) - 10(W - 4) = 0

W - 10 = 0; ∴ W = 10

or

W - 4 = 0 ;  ∴ W = 4

putting the values of W into equation (3)

L = 14 - W

where W = 10 or 4

L = 14 - 10 = 4

or L = 14 - 4 = 10

∴ Dimensions are:

Length = 4 ; width = 10

or

Length = 10 ; width = 4

Answer:

(2,1)

Step-by-step explanation:

-7x+y=-13

y=3-x

-7x+3-x=-13

x=2

y=3-2

y=1

R=8ft

Step-by-step explanation:

Calculate r using the given formula

r = , with Area = 64π

r = ← cancel π on numerator/ denominator

r = = 8

The required value of radius of circle r is 8 ft

From Figure the area of circle is = 64π, we have to find the radius of the circle.

Area of the circle is = π[tex]r^2[/tex]

since

the area of the circle is given = 64π

And,
Radius = √area/π
radius= √64π/π
Radius = √64
Radius = 8 ft

Thus The required value of radius of circle r is 8 ft.

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Answer:

The answer would be the second one is a function.

Step-by-step explanation:

Answer:

x + 110 + 47 = 180

x = 180 - 157

x = 23

Given :

Let, capacity of small bottle is x and large bottle is y.

To Find :

How much does each bottle hold ?

Solution :

For condition 1 :

3x + 4y = 3312   ...1)

For condition 2 :

2x + 4y = 2888  ...2)

Subtracting equation 2) from equation 1), we get :

x = 424

Putting value of x in equation 1) is :

[tex]y = \dfrac{2888 - (2\times 424)}{4}\\\\y = 510[/tex]

Therefore, capacity of small bottle is 424 gram and large bottle is 510 gram.

Answer:

A representative sample is a subset of a population that seeks to accurately reflect the characteristics of the larger group. For example, a classroom of 30 students with 15 males and 15 females could generate a representative sample that might include six students: three males and three females

Answer:

How can you determine a representative sample of a population? A representative sample is a subset of a population that seeks to accurately reflect the characteristics of the larger group. For example, a classroom of 30 students with 15 males and 15 females could generate a representative sample that might include six students: three males and three females

Step-by-step explanation:

Answer:

The answer to number 2 is X = 7

Step-by-step explanation:

9 = 2 +

9 = + 2

Subtract  2  from both sides of the equation  

= 7

Answer:

2. =7

3. 9 - 7 = 2

Step-by-step explanation:

Answer:

It is linear

Step-by-step explanation:

check graph img

Answer:

less then

Step-by-step explanation: 4/5=80%

Answer:

less then is the answer of this question

Answer:

Option (3)

Step-by-step explanation:

Area of a circle is given by the formula,

Area = πr²

Here, r = radius of the circle

Since, radius of the circular trampoline = 8 feet

Area of the cover required for the circular trampoline = π(8)²

                                                                                         = 64π square feet

Therefore, Option (3) will be the answer.

Answer:

1/4 of 2 hours

Step-by-step explanation:

30 min + 30 min = 1 hour. 1 hour is one half of two hours. Therefore, 30 minutes is 1/4 of 2 hours

Answer:

Rigid transformations can be used to map one polygon onto the others

Step-by-step explanation:

You can only do the above if the polygons are identical, hence congruent

Answer:

B)
A, B, and E.

Answer:

Answer is C

Step-by-step explanation:

Answer:

i^32=1

i^25=i

i^86=-1

i^51=-i

Step-by-step explanation:

Follow the Rule of Four of I for this,

i^1=[tex]\sqrt{-1}[/tex]

I^2=-1

I^3=-i

I^4=1

Answer: first one is 1

Second one is i

Third one is -1

Fourth one is -1

Step-by-step explanation:

Answer:

to find the sons shadow you would simply multiply the length of his body by 2, therefore his shadow would be 2 meters long

The height of shadow is 2 meter long.

We have,

The father is 2 meters tall and casts a shadow 4 meters long.

let the length of shadow be x.

Using proportion

2/4 = 1/ x

2x = 4

x =4 /2

x = 2 meter

Thus, the height is 2 meter tall.

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Answer:

12 to 6

12:6

Step-by-step explanation:

Answer:

2min 33s i think

Step-by-step explanation:

i searched it lol

Answer:

the average time gap between the 1st and the 2nd is 46 seconds

the average time gap between the 2nd and the 3rd is 60 seconds

the average time gap between the 3rd and the 4th is 31 seconds

the average time gap between the 4th and the 5th is 91 seconds

Step-by-step explanation:

so the average is 69.25 seconds

Answer:

15389.14

Step-by-step explanation:

You may need to round

4901 without pi

Answer:

I believe 123

Step-by-step explanation:

123 since the figures are equal and C and Y are in the same position