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4 years ago

Z is 6 more than twice y

Mathematics

1 answer:

stepan [7]4 years ago

6 0

Hi there!

I am guessing that you want to know how to write this as an expression:

Twice "y" = 2 times y = 2y

More than is represented by the symbol: >

Here is what your expression should look like:

Z > 2y + 6

There you go! I really hope this helped, if there's anything just let me know! :)

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A painter can paint a building in 15 days and a coworker can do the same job in 10 days. If the first painter starts and 3 days

Sonja [21]

Answer: 7.8 days

<u>Step-by-step explanation:</u>

Painter can get the job done in 15 days so gets $\dfrac{1}{15}$ of the job done in 1 day.

Coworker can get the job done in 10 days so gets $\dfrac{1}{10}$ of the job done in 1 day.

Together, they get $\dfrac{1}{15}+\dfrac{1}{10}$ of the job done in 1 day.

Painter worked for 3 days so completed $\dfrac{1}{15}(3)=\dfrac{1}{5}$ of the job.

That leaves a remaining of $1-\dfrac{1}{5}=\dfrac{4}{5}$ of the job to be completed.

Let x represent the number of days it will take them to work together.

Painter + Coworker = Together

$\dfrac{1}{15}(x)\quad +\quad \dfrac{1}{10}(x)\quad =\quad \dfrac{4}{5}$

Multiply by 30 to eliminate the denominator:

$\dfrac{1}{15}(x)(30) +\ \dfrac{1}{10}(x)(30) = \dfrac{4}{5}(30)$

Simplify and solve for x:

2x + 3x = 24

5x = 24

$x=\dfrac{24}{5}$

x = 4.8

Remember that Painter worked 3 days alone in addition to the 4.8 days they worked together.

So the total time to paint the building is 3 + 4.8 = 7.8

7 0

4 years ago

A father has $500,000. After he pays expenses, he wants to divide what is left between his 4 children. The expenses total $120,0

Wittaler [7]

Answer: 95,000

Step-by-step explanation:

$500,000 - $120,000 = 380,000

380,000/4 = $95,000

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3 years ago

The greatest common factor of 60w^5y^3 and 78wy^2

kirill [66]

60w^5y^3= 2 x 3 x 10 x w x w^4 x y x y ^2 78wy^2= 2 x 3 x 13 x w x y^2 GCF= 2 x 3 x w x y^2 is 6wy^2 The answer is B. Hope this helps.

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4 years ago

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Which of the following explains how ΔAEI could be proven similar to ΔDEH using the AA similarity postulate?

umka2103 [35]

Answer:

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Step-by-step explanation:

tbh im not suuper sure but my educated guess is that by looking at it. Good Luck!

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3 years ago

Turn 5/7 into its smallest form

DiKsa [7]

Answer:

5/7

Step-by-step explanation:

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3 years ago