Algebra EOC Review

There are 15 plates in a kitchen cabinet. The diameter of each plate is either 7 inches or 12 inches. The diameter of all 15 plates combined is 140 inches. Which system of equations can be used to find the number of 7-inch plates, x, and the number of 12-inche plates, y, that are in the cabinet?

• x + y=140

  12x + 7y = 15

• 7x + 12y =140

  7x + 12y = 15

• x + y = 15

  7x + 12y = 140

• x + y =15

  12x + 7y = 140

Tags

CCSS.8.EE.C.8C

Researchers in Antarctica discovered a warm sea current under a glacier that is causing the glacier to melt. The ice shelf of the glacier had a thickness of approximately 450 m when it was first discovered. The thickness of the ice shelf is decreasing at an average rate of 0.06 m per day. Which function can be used to find the thickness of the ice shelf in meters x days since the discovery?

• t(x)=450-0.06x

• t(x)=-0.06(x+450)

• t(x)=450+0.06x

• t(x)=0.06(x+450)

Tags

CCSS.HSF-BF.A.1A

Tags

CCSS.6.EE.A.4

• 3
• -3
• -9
• 0
• 9

Tags

CCSS.HSA.APR.A.1

Printer ink cost $18.99 per cartridge. The company that sells the ink cartridges charges a flat rate shipping fee of $7.95, no matter the number of cartridges purchased in a single order. Which linear function models the total cost, t, for a single order of c cartridges?

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

• 27, 9, 3, 1

• 27, 81, 243, 729

Tags

CCSS.HSF.IF.A.3

Which statement about the line is true?

• The equation of the line is x=-4, and the slope is undefined.

• The equation of the line is y=-4, and the slope is equal to -4.

• The equation of the line is x=-4, and the slope is equal to -4.

• The equation of the line is y=-4, and the slope is undefined.

The domain and range of part of linear function r are given.

x>5

y<2

Which graph could represent this part of linear function r?

• 
• 
• 
• 

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

• -3

• 3

• 2

• -6