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12345 [234]
3 years ago
8

you need two bottles of fertilizer for 42 feet perimeter. How many bottles do you need for a similar garden of 105 feet perimete

r?
Mathematics
2 answers:
mestny [16]3 years ago
7 0

5bottles are needed

Step-by-step explanation:

If two bottles of fertilizer are needed for 42 feet perimeter, for 105perimeters, the number of fertilizers needed can be gotten using the law of equality as shown below;

2bottles = 42 feet perimeters

x bottles = 105feet perimeters

Cross multiplying to get the number of bottles 'x' we will have;

x bottles × 42feet perimeter = 2bottles × 105feet perimeter

x bottles = 2bottles×105ft perimeter/42ft perimeters

x = 210/42

x = 5bottles

harkovskaia [24]3 years ago
4 0
5 bottles 4 is 84 and 1 is 21
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3 years ago
In exercises 8-10, write a system of linear equations that has the ordered pair as its solution. (-6, -2)
Anika [276]

Answer:

(8) x + y = -8 and 2x - y = -10

(9) 3x - y = -54 and 4x + y = -30

(10) x + y = 2 and x - y = 2

Step-by-step explanation:

Given [Missing from the question]

(8).\ (-6,-2)\ \\ (9).\ (-12,18)\ \\ (10).\ (2,0)

Required

Write a system of linear equations

The solutions to this question is open and have different solutions

Solving (8) (-6,-2)

Let the equations be: x + y and 2x - y

x + y = -6 - 2

x + y = -8 --- (1)

2x - y = 2 * (-6) - (-2)

2x - y = -10 -- (2)

So, the equations are:

x + y = -8 and 2x - y = -10

Solving (9) (-12, 18)

Let the equations be: 3x - y and 4x + y

3x - y = 3 *(-12) - 18

3x - y = -54

4x + y = 4 * (-12) + 18

4x + y = -30

So, the equations are:

3x - y = -54 and 4x + y = -30

Solving (9): (2,0)

Let the equations be: x + y and x - y

x + y = 2 + 0

x + y = 2

x - y = 2 - 0

x - y = 2

So, the equations are:

x + y = 2 and x - y = 2

5 0
3 years ago
PLEASE HELP!! I NEED THIS TO PASS.
Tanzania [10]
Let's apply the Law of Cosines here.  We want the measure of the angle opposite the side with length 16.

Call that angle C.

Then 16^2 = 36^2 + 28^2 - 2(36)(28)cos C.

Solving for C:  cos C = 16^2 - 36^2 - 28^2 
                                     -------------------------  = 0.904, and C = 0.44 rad
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So each of the 2 equal angles shown has the measure 25.21 degrees.

Unfortunately, I don't know the direction we should go from this point on.




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3 years ago
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Step-by-step explanation:

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