Mathematics
Grade-7
Easy

Question

Solve 55c + 13 ≤ 75c + 39

  1. c≤10 over 13
  2. c ≥ −13 over 10
  3. negative straight C greater than 19
  4. c≤50 over 80

The correct answer is: c ≥ −13 over 10


    55c + 13 ≤ 75c + 39
    first we have to rearrange this inequality
    75c + 39 greater or equal than space 55 c space plus space 13
    75c - 55c greater or equal than space 13 space minus space 39
    20c greater or equal than space minus 26
    now we have to divided by 20 both side
    fraction numerator 20 c over denominator 20 end fraction greater or equal than space minus 26 space cross times 1 over 20
c space greater or equal than space fraction numerator negative 13 over denominator 10 end fraction

    Related Questions to study

    Grade-7
    Mathematics

    Solve 6(n + 2) < -72

    Solve 6(n + 2) < -72

    MathematicsGrade-7
    Grade-7
    Mathematics

    Solve -4x -7 ≥ 21

    Solve -4x -7 ≥ 21

    MathematicsGrade-7
    Grade-7
    Mathematics

    Solve -2 (x+2) < 14

    multiply or divide by a negative number it will change the sign of inequality

    Solve -2 (x+2) < 14

    MathematicsGrade-7

    multiply or divide by a negative number it will change the sign of inequality

    parallel
    Grade-7
    Mathematics

    Solve for b.
    2(b+1) +3≤7

    Solve for b.
    2(b+1) +3≤7

    MathematicsGrade-7
    Grade-7
    Mathematics

    Solve for g.
    2(g+1) +2 <10

    Solve for g.
    2(g+1) +2 <10

    MathematicsGrade-7
    Grade-7
    Mathematics

    Solve for h.
    3(h+1) <9

    Solve for h.
    3(h+1) <9

    MathematicsGrade-7
    parallel
    Grade-7
    Mathematics

    Solve for w.
    2(w+2) <6

    Solve for w.
    2(w+2) <6

    MathematicsGrade-7
    Grade-7
    Mathematics

    Dave has earned scores of 87, 81, 92, 88, and 83 on the first five of six math tests for the semester. He would like to finish the semester with a test average of at least 90. Find the score Dave needs to earn on the sixth test to achieve his goal.

    Dave has earned scores of 87, 81, 92, 88, and 83 on the first five of six math tests for the semester. He would like to finish the semester with a test average of at least 90. Find the score Dave needs to earn on the sixth test to achieve his goal.

    MathematicsGrade-7
    Grade-7
    Mathematics

    Solve -4x + 14 ≤ 54

    multiply or divide by a negative number it will change the sign of inequality

    Solve -4x + 14 ≤ 54

    MathematicsGrade-7

    multiply or divide by a negative number it will change the sign of inequality

    parallel
    Grade-7
    Mathematics

    Solve for y.
    5(y+1)>10

    Solve for y.
    5(y+1)>10

    MathematicsGrade-7
    Grade-7
    Mathematics

    Solve 2(j+2) <10

    Solve 2(j+2) <10

    MathematicsGrade-7
    Grade-7
    Mathematics

    4m > -12

    sign will not change because 4 is a positive number

    4m > -12

    MathematicsGrade-7

    sign will not change because 4 is a positive number

    parallel
    Grade-7
    Mathematics

    5x ≤ -55

    when we multiply by a positive number inequality sign will not change

    5x ≤ -55

    MathematicsGrade-7

    when we multiply by a positive number inequality sign will not change

    Grade-7
    Mathematics

    -4x > 64

    here inequality sign will change because we are multiplying by a negative number fraction numerator negative 1 over denominator 4 end fraction

    -4x > 64

    MathematicsGrade-7

    here inequality sign will change because we are multiplying by a negative number fraction numerator negative 1 over denominator 4 end fraction

    Grade-7
    Mathematics

    z over 4 greater than negative 2

    when we multiply by positive number inequality sign will not change

    z over 4 greater than negative 2

    MathematicsGrade-7

    when we multiply by positive number inequality sign will not change

    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.