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Morgarella [4.7K]

2 years ago

8

It takes Ann, brad and chad two hours to paint a fence. When Ann works alone , she can paint the same fence in six hours. When b

rad works alone , he can paint the same fence in four hours. How long would it take for chad to paint the same fence on his own

1 answer:

andriy [413]2 years ago

8 0

Answer:

it would take chad 8.1 hours to paint the fence on his own

Step-by-step explanation:

You might be interested in

Triangle A B C is cut by line segment S T. Line segment S T goes from side A B to side C B. Lines S T and A C are parallel. The

maksim [4K]

Answer:

Option C.

Step-by-step explanation:

Given information: In triangle ABC, ST║AC, SB=10 ft, BT=9 ft and CT=2.7 ft.

Triangle proportionality theorem: If a line segment parallel to a side of a triangle then the line segments divides the remaining sides proportionally.

Using triangle proportionality theorem we get

$\dfrac{SA}{SB}=\dfrac{CT}{BT}$

$\dfrac{SA}{10}=\dfrac{2.7}{9}$

On cross multiplication we get

$9\times SA=2.7\times 10$

$9SA=27$

Divide both sides by 9.

$SA=3$

The length of SA is 3ft.

Therefore, the correct option is C.

8 0

2 years ago

Read 2 more answers

Please answer this question now

nirvana33 [79]

Answer:

m∠CDE < m∠DEC < m∠ECD

OR

m∠D < m∠E < m∠C

Step-by-step explanation:

According to the angle-side inequalities theorem: In a triangle, the angle opposite to a longer side is larger, and vise versa, the side opposite to a larger angle is longer.

So, the order from smallest to largest is:

m∠CDE < m∠DEC < m∠ECD

OR

m∠D < m∠E < m∠C

5 0

3 years ago

Help even tho it’s multiple choice make sure you are correct... I beg you lol

kondaur [170]

Answer:

The equation of the line is:

$y=(-\frac{1}{2})x+1$

Therefore, option a is the correct answer.

Step-by-step explanation:

Given the points

(-2, 2)

(4, -1)

Finding the slope

$\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(-2,\:2\right),\:\left(x_2,\:y_2\right)=\left(4,\:-1\right)$

$m=\frac{-1-2}{4-\left(-2\right)}$

$m=-\frac{1}{2}$

As the point-slope form of the equation of the line is

$y-y_1=m\left(x-x_1\right)$

where m is the slope

substituting the values $m=-\frac{1}{2}$ and the point (-2, 2)

$y-y_1=m\left(x-x_1\right)$

$y-2=\frac{-1}{2}\left(x-\left(-2\right)\right)$

$y-2=\frac{-1}{2}\left(x+2\right)$

$y-2=-\frac{1}{2}\left(x+2\right)$ ∵ $\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{b}=-\frac{a}{b}$

Add 2 to both sides

$y-2+2=-\frac{1}{2}\left(x+2\right)+2$

$y=(-\frac{1}{2})x+1$

Hence, the equation of the line is:

$y=(-\frac{1}{2})x+1$

Therefore, option a is the correct answer.

4 0

2 years ago

lord [1]

Answer:

D. y + 9 = –2(x – 10)

Step-by-step explanation:

GradPoint answer

I also got the answer correct on the quiz.

5 0

2 years ago

Need help with this<br> (Venn Diagram with with Exponents, Radicals, and Polynomials)

sertanlavr [38]

Answer:

true, false, true, true

Step-by-step explanation:

The set names in this diagram have nothing to do with exponents, radicals, and polynomials. We'll take the diagram at face value.

(a) The labels on the sets seem to be appropriately placed.

__

(b) "Some" in this context means "any or all of the set". Since all of the circle representing integers is outside the rectangle representing irrational numbers, it is TRUE that some integer are not irrational numbers.

No part of the circle representing whole numbers is inside the rectangle representing irrational numbers, so it is FALSE that some whole numbers are irrational numbers.

A portion of the circle representing integers is outside the circle representing whole numbers, so it is TRUE that some integers are not whole numbers.

Every part of the circle representing whole numbers is inside the rectangle representing rational numbers, so it is TRUE that all whole numbers are rational numbers.

7 0

3 years ago