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2 years ago

Only number 3 plssssssssssssssss

Mathematics

1 answer:

V125BC [204]2 years ago

7 0

Answer:

(a) 72 tiles

(b) 54 tiles

Step-by-step explanation:

Total perimeter of the pool = 6 + 6 + 4.8 + 4.8 = 21.6 meter.

The tiles are in centimeters so...21.6 m x 100 = 2160 cm.

(a) 2160 divided by 30 = 72

(b) 2160 divided by 40 = 54

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Check if (1,6) is the solution to the system shown below

Andre45 [30]

Answer:

Step-by-step explanation:

To determine if (1, 6) is a solution, substitute x = 1, y = 6 into the left side of both equations and if the value obtained equals the right side then it is a solution.

10(1) - 6 = 10 - 6 = 4 ≠ - 6

- 10(1) + 5(6) = - 10 + 30 = 20 ≠ 30

Then (1, 6 ) is not a solution to the system

4 0

2 years ago

What is the solution of each equation? Check your answer.

Sedbober [7]

Answer:

-6

Step-by-step explanation:

first you crossover negative 8 to make it positive then you add to -14

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2 years ago

The length of a rectangle is 3ft less than double the width, and the area of the rectangle is 14ft^2 find the dimensions of rect

german

Answer: $4\times 3.5\ ft^2$

Step-by-step explanation:

Given

area of the rectangle is $A=14\ ft^2$

Suppose width is given by w

So, length is $l=2w-3$

The area of a rectangle is $A=l\times w$

putting values

$\Rightarrow A=(2w-3)w\\\Rightarrow 14=2w^2-3w\\\Rightarrow 2w^2-3w-14=0\\\Rightarrow 2w^2-7w+4w-14=0\\\Rightarrow w(2w-7)+2(2w-7)=0\\\Rightarrow (2w-7)(w+2)=0\\\\\Rightarrow w=\dfrac{7}{2}\ ft$

length is $l=4\ ft$

6 0

2 years ago

Eric and Linda are paid $41.25 for their work. Eric worked 2.5 hours, and Linda worked 3 hours. They split the money according

arsen [322]

Answer:$18.75

Step-by-step explanation:

First, find how much they get paid for working half a hour by dividing 9 from 41.25 to get 3.75.

Then, multiply 3.75 by 5 to get 18.75.

Eric's share is $18.75.

3 0

1 year ago

Adding or subtracting fractions with different denominators

Bas_tet [7]

Step-by-step explanation: You can't continue on with the problem until the denominators are the same. So you need to find the LCD (Least Common Denominator). For example...

$\frac{1}{2} +\frac{1}{3}$ The LCD is six

$\frac{1*3}{2*3}=\frac{3}{6} =\frac{1}{3}$

$\frac{1}{2}+ \frac{1}{3}= \frac{3}{6} +\frac{2}{6}$

$\frac{3+2}{6}= \frac{5}{6}$

Hope this helps, have a BLESSED and wonderful day! :-)

-Cutiepatutie <3

8 0

3 years ago