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3 years ago

Helppppp pleaseeeeeee

Mathematics

1 answer:

miss Akunina [59]3 years ago

8 0

Answer:

Step-by-step explanation:

She uses 1/6th a cup of flour with 2/3 cup of water. To use 1 cup of flour she has to do this 6 times.

6 * 2/3 = 12/3 = 4 cups

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you paint 4 walls. Each wall is a a rectangle with a length of 24 feet and a height of 12 feet. One gallon of paint covers about

tatuchka [14]

Answer:

3 gallons

Step-by-step explanation:

7 0

4 years ago

What is the perimeter in square units of the rectangle shown on the coordinate grid?

Rashid [163]

In order to find the Perimeter of the Rectangle, First we need to find the Length and Width of the Rectangle.

Distance between two points (x₁ , y₁) and (x₂ , y₂) is given by :

$\bigstar\;\; \mathsf{Distance = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}}$

There are two lengths in a rectangle. Let us find any one length of the rectangle.

I'm considering the length with co-ordinates (-8 , 2) and (-2 , 10)

Here : x₁ = -8 and x₂ = -2 and y₁ = 2 and y₂ = 10

Substituting the values in the distance formula, We get :

$\mathsf{\implies Length = \sqrt{[-2 - (-8)]^2 + [10 - 2]^2}}$

$\mathsf{\implies Length = \sqrt{[-2 + 8]^2 + [8]^2}}$

$\mathsf{\implies Length = \sqrt{[6]^2 + [8]^2}}$

$\mathsf{\implies Length = \sqrt{36 + 64}}$

$\mathsf{\implies Length = \sqrt{100}}$

$\mathsf{\implies Length = 10}$

There are two widths in a rectangle. Let us find any one width of the rectangle.

I'm considering the width with co-ordinates (-2 , 10) and (2 , 7)

Here : x₁ = -2 and x₂ = 2 and y₁ = 10 and y₂ = 7

Substituting the values in the distance formula, We get :

$\mathsf{\implies Width = \sqrt{[2 - (-2)]^2 + [7 - 10]^2}}$

$\mathsf{\implies Width = \sqrt{[2 + 2]^2 + [-3]^2}}$

$\mathsf{\implies Width = \sqrt{[4]^2 + [-3]^2}}$

$\mathsf{\implies Width = \sqrt{16 + 9}}$

$\mathsf{\implies Width = \sqrt{25}}$

$\mathsf{\implies Width = 5}$

Perimeter of a Rectangle is given by : 2[Length + Width]

$:\implies$ Perimeter of the given rectangle = 2[10 + 5]

$:\implies$ Perimeter of the given rectangle = 2[15]

$:\implies$ Perimeter of the given rectangle = 30

Answer : Perimeter of the given rectangle is 30 square units

4 0

3 years ago

Read 2 more answers

Pizazz manufactures a 5.0 oz. energy drink of the same name. Because the cans are so small, consumers are concerned that they ar

omeli [17]

Answer:

The LCL of the R-chart starts from the origin ( i.e. zero value ) while the LCL of an X -chart did not start from the origin

LCL of R-chart = 0 * 0.84533 = 0

LCL of R-chart = 75.128

Step-by-step explanation:

Given data:

number of observations = 15

sample size ( m ) = 6

sum of sample mean = 80.20 ounces

sum of sample range ( R ) = 12.68 ounces

Determine the control limits of an x-bar and R-chart

for an R-chart

LCL of R-chart = D3 * R(bar) ---- ( 1 )

where : m = 6 , D3 = 0 , R = 12.68

R(bar) = 0.84533

back to equation 1

LCL of R-chart = 0 * 0.84533 = 0

for an X-chart

LCL of X-bar) = ( mean ) - (m x R-bar)

= 80.20 - ( 6 * 0.84533 )

= 75.128

The LCL of the R-chart starts from the origin ( i.e. zero value ) while the LCL of an X -chart did not start from the origin

3 0

3 years ago

Simplify the following expression, 4.2x+4.7=18.6

zhannawk [14.2K]

Answer:

Step-by-step explanation:

4.2x+4.7=18.6

Multiple each term by 10

42x + 47 = 186

Collecting like terms

42x = 186 - 47

42x = 139

x = 139/42

x = 3 13/42 or 3.3

5 0

3 years ago

Can someone explain please?

Paul [167]

Answer:

- The equation that represent the cost C of renting a car and driving x miles is C = $39.11 + $0.50x

- $130 can travel 181.32 miles

Step-by-step explanation:

From the question, a rental company rents a luxury car at a daily rate of 39.34 $ plus $.50 per mile, that is

$0.50 is added to the initial $39.34 for every mile.

The equation that represent the cost C of renting a car and driving x miles is

C = $39.34 + $0.50x

Now, to determine how many miles 130$ can travel,

we will put C = $100, and determine x in the above equation

$130 = $39.34 + $0.50x

$130 - $39.34 = $0.50x

$90.66 = $0.50x

x = $90.66/$0.50

x = 181.32

Hence, $130 can travel 181.32 miles

7 0

3 years ago