Mathematics Test(Code:7958 7813)

What Is Linear?

• A type of progression
• A type of equation where the graph is a straight line
• A type of shape
• A type of color

Answer explanation

From The letters 'Line' From The Word Linear Means A About Straight Line Or A Straight Line.

Tags

CCSS.8.F.A.3

50X + 85/100 = 124 . Find X.

• 52/5

• 62/100

• 2463/1000

• 1523/64

Answer explanation

50X + 85/100 = 124

50X/1 +85/100 =124

50X = 124/1 - 85/100

(Take LCM On LHS)

50X = 12400/100 - 85/100

50X = 12315/100

(Take Cross Multiplication)

5000X = 12315

X = 12315/5000

X = 2.463 OR 2463/1000

Tags

CCSS.7.NS.A.1C

Jim And Sam Share $563 In The Ratio 5:3. How Much Do Jim And Sam Get?

• Jim gets $248 and Sam gets $315

• Jim gets $210.76543 and Sam gets $353.754

• Jim gets $315.5687 and Sam gets $248.674

• Jim Gets $351.875 And

  Sam Gets $211.125

Answer explanation

We Will Add The Products.

5+3 = 8

We All Divide 563 By 8

563/8 = 70.375

Jim = 70.375 X 5 = $351.875

Sam = 70.375 X 3 = $211.125

ThereFore Jim Has $351.875 And Sam Has

$211.125

Tags

CCSS.6.RP.A.3B

Factorise 9x^2-6b^2x-(a^4-b^4)=0

• (a^2 - a^2)/5 and (b^2 - b^2)/4.

• (b^2 + a^2)/3 and (b^2 - a^2)/3.

• (b^2 + a^2)/3 and (b^2 - a^2)/3.

• (a^2 + a^2)/5 and (b^4 - a^2)/6.

Answer explanation

To Solve For x, We Can Use The Special Quadratic Formula

x = (-(-6b^2) ± sqrt((-6b^2)^2 - 4(9)(-(a^4-b^4)))) / (2(9)) x

= (6b^2 ± sqrt(36b^4 + 36a^4 - 36b^4)) / 18 x = (6b^2 ± sqrt(36a^4)) / 18 x

= (6b^2 ± 6a^2) / 18 x

= (b^2 ± a^2) / 3 Therefore, the solutions for x are (b^2 + a^2)/3 and (b^2 - a^2)/3.

Tags

CCSS.HSA.APR.C.4

Mental Math Test. Solve 90 X 9 X 5 X 2.

Answer explanation

We an Solve By Multiplying 9 By 9 And

Add A Zero Which Makes 810. Half of 810

= 405. Add A Zero Which Makes 4050 .

4050 X 2 = 8100

ThereFore, The Answer Is 8100

Tags

CCSS.4.NBT.B.5

solve The Following Simultaneous Linear Equations. 7X + 2Y = 24, 8X + 2Y = 30.

• X = 6, Y= -9

• X = 2, Y = 5
• X = 4, Y = -7

• X = 1, Y = 8

Answer explanation

We Can Solve It By Elimination Method, Graphical Method, Substitution Method, Comparison Method.

For Now, We'll Do Elimination Method:-

7x+2y=24

8x+2y=30

(Add Negative Sign To Bottom Equation)

7x+2y=24

-8x-2y=-30

(Eliminate The Y'S)

-1x = -6

x = 6

(Insert The Value Of x In The First Equation)

7(6)+2y=24

42+2y=24

2y=24-42

2y=-18

y=-18/2

y=-9

Therefore, x = 6 And y = -9.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6