Solve the following system of equations via elimination. 12x – 9y = 30 6x+15y=54

Mathematics

1 answer:

sesenic [268]3 years ago

3 0

Answer:

x=4,y=2

Step-by-step explanation:

solve one of the equations for x/y and then plug it into the other

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A triangle has two sides of length 1 and 2. What compound inequality describes the possible lengths for the third side, x?Write

klemol [59]

Step-by-step explanation:

since in a triangle each side must be shorter than the sum of the other 2 sides (otherwise the end points cannot connect, and there is no triangle), the necessary inequality condition must be

side < 1 + 2 = 3

so,

side < 3

for a lower limit let's go through the cases

1 < 2 + side (is always true)

2 < 1 + side

1 < side (side must be larger than 1)

and again

side < 1 + 2 = 3

side < 3

so the full restriction for the third side is

1 < side < 3

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Six more than the product of a number and 5 is equal to 9.

padilas [110]

Answer:

5 = 9 + 6

Step-by-step explanation:

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2 years ago

A square piece of fabric has an area of 16x^2+40x+25 square inches. The length of each side of the fabric is cx+d, where c and d

lozanna [386]

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