Solve the system of equations.

3x + 2y + 4z = 7

4x + 3y + 5z = 9

7x + 4y + 7z = 5

a (x = - 5, y = 3,2 = 4)

b. (x = - 6, y = 4, z = 5)

c. (x = - 3, y = 1, z = 6)

d. (x = - 4, y = 2, z = 3)

The average time it takes a swimmer to complete a lap is represented by the variable t. which set of numbers best describes the value of the variable?

At a construction job for a gallery there are 20 painters. Of these painters 12 of them are painting the interior of the gallery. What percent of these painters are painting the interior?

Choose all of the correct statements. 6.3 * 107 is approximately 20 times larger than 3.1 * 108. 19.6 * 106 is approximately 65 times larger than 3.0 * 105. 8.6 * 10-6 is approximately 41 times larger than 2.1 * 10-5. 5.

At a restaurant 21 people had breakfast on Saturday morning. 1/7 of the people are eggs only. 2/3 of the people ate both pancakes and eggs. The remaining people ate pancakes only.

All rational numbers can be written as what?

S=1+2. t o instante que passa pela origem s=0

A rectangle has a length of 10 3/16 inches and a width of 6 7/8 inches. What is the perimeter of the rectangle?

Jalissa bought a backpack for $30 and n notebooks for $2.50 each.

Solve the inequality. 2>8-43h

A gardener at Blair's Arboretum is making displays of roses with 192 red 120 yellow and 168 pink roses to choose from if she wants to use all of the flowers in the displays need to be identical what is the greatest number of displays she can create