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2 years ago

Chris is making a tabletop. He has 9 tiles that are each 3 1/8 long by 2 3/4 inches wide.

Mathematics

2 answers:

xenn [34]2 years ago

8 0

3 1/8 times 2 3/4
25/8 x 11/4= 275/32 each tile x 9/1 tiles = 2475/32 =
77 11/32in ^2

TiliK225 [7]2 years ago

4 0

<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ Find the area per tile first:

area = length x width

Substitute the values in:

area = 3 1/8 x 2 3/4

area = 275/32

Multiply this by 9:

275/32 x 9 = 77.34375 in^2

You can round the value accordingly.

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

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Emma calculated the slope of the downhill hike to be . Her work is shown below. Determine whether her calculation was correct or

Greeley [361]

Answer:

Emma made a mistake. The slope should be -40.

Step-by-step explanation:

Pair of points (x, y):

(165, 900) and (180, 300)

Slope formula:

m = (y₂ - y₁)/(x₂ - x₁)

Calculate the slope:

Slope = (300 - 900)/(180 - 165) = -600/15 = -40

4 0

2 years ago

Triangle ABC is a right triangle and cos(22.6o)=StartFraction b Over 13 EndFraction. Solve for b and round to the nearest whole

Art [367]

Answer:

a = 5 and b = 12

Step-by-step explanation:

Step 1: Find angle B

Angle C = 90°

Angle A = 22.6°

Angle B = B

All angles in a triangle are equal to 180°.

Angle A + Angle B + Angle C = 180°

22.6 + 90 + B = 180°

B = 180 - 112.6

B = 67.4°

Step 2: Find the value of side AC 'b'

Hypotenuse = 13

Adjacent = b

Angle A = 22.6°

Cos (Angle) = Adjacent/Hypotenuse

Cos (22.6) = b/13

b = 12

Step 3: Find the value of side CB 'a'

Hypotenuse = 13

Opposite = a

Angle A = 22.6°

Sin (angle) = Opposite/Hypotenuse

Sin (22.6°) = a/13

a = 4.99 rounded off to 5

Therefore, the value of a=5 and b=12.

8 0

2 years ago

Read 2 more answers

Jeanine’s swimming pool has a diameter of 27 feet. Surrounding the pool is a

Anuta_ua [19.1K]

Answer:

It will cost $427.04 to paint deck and it will cost 958.485 to add fencing around deck

Step-by-step explanation:

Diameter of swimming pool = 27 feet

Radius of pool r= $\frac{27}{2}=13.5 feet$

Surrounding the pool is a deck that extends 5 feet from the edges of the pool

Outer radius R = 13.5+5=18.5

Area of deck = Outer area - Inner area

Area of deck = $\pi R^2 -\pi r^2$

Area of deck = $3.14(18.5^2-13.5^2)$

Area of deck = $502.4 ft^2$

Cost of painting 1 sq.feet = $0.85

Cost of painting 502.4 sq.feet = $502.4 \times 0.85=427.04$

Perimeter of deck = $2 \pi R = 2 \times 3.14 \times 18.5 =116.18 feet$

Cost of fencing 1 foot = $8.25

Cost of fencing 116.18 foot = $116.18 \times 8.25=958.485$

Hence it will cost $427.04 to paint deck and it will cost 958.485 to add fencing around deck

6 0

2 years ago

Tickets to a musical cost $30 for adults and $12 for children. At one particular performance 960 people attended and $19 080 was

postnew [5]

In order to solve this, you have to set up a systems of linear equations.

Let's say that children = c and adults = a

30a + 12c = 19,080
a + c = 960

I'm going to show you how to solve this system of linear equations by substitution, the easiest way to solve in my opinion.

a + c = 960
- c - c
---------------------- ⇒ Step 1: Solve for either a or c in either equation.
a = 960 - c

20(960 - c)+ 12c = 19,080
19,200 - 20c + 12c = 19,080
19,200 - 8c = 19,080
- 19,200 - 19,200
---------------------------------- ⇒ Step 2: Substitute in the value you got for a or c
8c = -120 into the opposite equation.
------ ---------
8 8

c = -15

30a + 12(-15) = 19,080
30a - 180 = 19,080
+ 180 + 180
-------------------------------
30a = 19,260
------- -----------
30 30

a = 642
__________________________________________________________

I just realized that there can't be a negative amount of children, so I'm sorry if these results are all wrong.

7 0

2 years ago

Read 2 more answers

Sam, Joe, Lynn, and Kori are four business colleagues traveling together on a business trip. There are four adjacent seats avail

DanielleElmas [232]

Answer:

A. Sam, Joe, Lynn, Kori

B. Kori, Lynn, Sam, Joe

Step-by-step explanation:

We need Kori and Lynn together and Kori and Sam at least a seat apart.

A. Sam, Joe, Lynn, Kori

B. Kori, Lynn, Sam, Joe

C. Lynn, Kori, Sam, Joe

D. Responses A and C

It seems both A. Sam, Joe, Lynn, Kori and B. Kori, Lynn, Sam, Joe both work. There is no choice for both of them so I'll just put both of them as my answer.

3 0

2 years ago