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3 years ago

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There are 5 flower gardens in front of the building where Eddie works. Eddie has 40 red and 80 white flowering plants to put in

the gardens. How many plants will be in each garden, if he plants the same number in each?

2 answers:

zimovet [89]3 years ago

4 0

24 plants will be in each garden.

Snowcat [4.5K]3 years ago

3 0

Five flower gardens with 120 plants to plant in the gardens.

120 / 5 = 24

24 plants will be in each garden.

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Percy solved the equation x2 + 7x + 12 = 12. His work is shown below. Is Percy correct? Explain.

antoniya [11.8K]

= > x² + 7x + 12 = 12

= > x² + ( 4 + 3 )x + 12 = 12

= > x² + 4x + 3x + 12 = 12

= > x( x + 4 ) + 3( x + 4 ) = 12

= > ( x + 4 ) ( x + 3 ) = 12

Percy did correct till this step. But by doing like this, Percy can't get the values of the variable x.

Percy should follow the following steps :

= > x² + 7x + 12 = 12

Add -12 on both sides,

= > x² + 7x + 12 - 12 = 12 - 12

= > x² + 7x = 0

= > x( x + 7 ) = 0

= > ( x = 0 ) or ( x + 7 = 0 )

= > ( x = 0 ) or ( x = - 7 )

Hence, required value(s) of x is 0 or -7
$.$

8 0

4 years ago

Read 2 more answers

What are the number of integral solutions of the equation 2x+2y+z=20 such that x>=0 , y>=0 , z>=0?

zaharov [31]

$2x+2y+z=20\\
z=\dfrac{20}{2x+2y}\\
z=\dfrac{10}{x+y}$

Now, for z to be an integer, the sum x+y must be a divisor of 10.
It has to be a positive divisor since z≥0. Also x≠y.

$x+y=1 \\
x=1-y\\
$
x≥0 and y≥0 so y can be equal to either 0 or 1. There are 2 solution in this case.

$x+y=2\\
x=2-y\\$
In this case, y can be equal to 0,1, or 2, but for y=1 ⇒ x=1, so there are two solutions.

$x+y=5\\
x=5-y$
y can be 0,1,2,3,4 or 5 - 6 solutions

$x+y=10\\
x=10-y$
y can be 0,1,2,3,4,5,6,7,8,9,10, but for y=5 ⇒ x=5, so 10 solutions.

2+2+6+10=20 solutions in total.

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3 years ago

How does difference of squares work?

kodGreya [7K]

Every difference of squares problem can be factored as follows: a2 – b2 = (a + b)(a – b) or (a – b)(a + b). So, all you need to do to factor these types of problems is to determine what numbers squares will produce the desired results. Step 3: Determine if the remaining factors can be factored any further.

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3 years ago

Find the domain with these points

Lina20 [59]

Answer:

From these the domain is 3.5

3 0

3 years ago

How do you solve 7.5=x+3/2

labwork [276]

7.5 = x + $\frac{3}{2}$ equals x = 6.

First, subtract $\frac{3}{2}$ from both sides. / Your problem should look like: 7.5 - $\frac{3}{2}$ = x.
Second, simplify 7.5 - $\frac{3}{2}$ to 6. / Your problem should look like: 6 = x.
Third, switch sides. / Your problem should look like x = 6, which is your answer.

6 0

3 years ago

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