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3 years ago

5

mr. Smith is putting in a new floor in his bathroom he has already filled 25 ft.² of floor measuring 10‘ x 6‘ what percent has h

e tiled

1 answer:

Salsk061 [2.6K]3 years ago

7 0

Answer:

41.67%

Step-by-step explanation:

$tiled \: percent = \frac{25}{10 \times 6} \times 100 \\ \\ = \frac{2500}{60} \\ \\ = 41.6666667\% \\ \\ \approx \: 41.67\% \\$

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Which of the following is a polynomial?

Zanzabum

Answer:

I'm pretty sure A is the correct answer :)

(x-2)(x^4+3) is a polynomial

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3 years ago

Football coaches running their summer practices noticed

Westkost [7]

Answer:

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Step-by-step explanation:

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4 years ago

John’s father is 5 times older than John and John is twice as old as his sister Alice. In two years time, the sum of their ages

oksano4ka [1.4K]

Answer:

John’s age is 8 years

Step-by-step explanation:

Let

x -----> John’s father's age

y -----> John’s age

z -----> John’s sister's age

we know that

$x=5y$ -----> equation A

$y=2z$

$z=y/2$ -----> equation B

$(x+2)+(y+2)+(z+2)=58$

$x+y+z+6=58$

$x+y+z=52$ -----> equation C

Substitute equation A and equation B in equation C and solve for y

$5y+y+y/2=52$

Multiply by 2 both sides to remove the fraction

$10y+2y+y=104$

$13y=104$

$y=8$

<em>Find the value of x</em>

$x=5(8)=40$

<em>Find the value of z</em>

$z=8/2=4$

therefore

John’s father's age is 40 years

John’s age is 8 years

John’s sister's age is 4 years

7 0

3 years ago

Given Triangle DEF is isosceles and angle D is the vertex angle, Find x, DE, DF, EF

ch4aika [34]

Answer:

x=2;DE,EF=9,DF=5

Step-by-step explanation:

Since DEF is isoceles, you can set the equations

x+7 and 2x+5 equal to each other

x+7=2x+5, now solve for x

-x=-2,

x=2, now plug in for each side

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DF=3(2)-1=5

4 0

3 years ago

What's the lower bound of 3.05

Verizon [17]

Answer:

I think its 20.....

Step-by-step explanation:

Plz don't be mad if I'm wrong..... lol :/

4 0

3 years ago