class 8 linear equation in one variable

Which of the following is not a linear equation?

• 3x - 1 = - 2x

• xy - 3 = x

• x + 2y = 10

• (x-5) ⁄ 7 = (x-2) ⁄ 3

Tags

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Construct linear equation for the following statement:

Two numbers are in the ratio 5 : 7 and sum of the numbers is 120

• 5x + 7x = 120

• 5x - 7x =120

• x ⁄ 5 + x ⁄ 7 = 120

• None of the above

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.EE.C.9

CCSS.6.RP.A.1

CCSS.6.RP.A.3

Identify two consecutive multiples of 3 whose sum is 57.

• 24 and 33

• 27 and 30

• 21 and 36

• None of the above

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Write 'True' or 'False'

An algebraic statement becomes an equation when it equals something

• FALSE

• TRUE

Solve for x.  $3x+2\left(1-3x\right)=0$  

•  $2=0$  doesn't make sense

•  $x=1$  

•  $x=\frac{2}{3}$  

•  $2=3x\ \rightarrow$  no solution

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

• 7⁄4
• ½
• 2
• ¾

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.7

Solve.

5(y + 4) = 4(y + 5)

• 0

• 2

• no solution

• All real numbers

Solve:
2(4x - 3) - 8 = 4 + 2x

• x = 5/3
• x = 3
• x = 1
• x = 2

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

The present age of father is four times the age of his son. After 10 years, age of father will become three times the age of his son. Find Father’s age after 10 years.

• 80 years

• 90 years

• 70 years

• 100 years

The digit in the ten’s place of a two digit number is 3 more than digit in the unit’s place. Let the digit in the units place be b. Then the number is?

• $11b+30$
  

• $10b+30$

• $11b+3$

• $10b+3$