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What percent of php 850 is php 1000​

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  • Réponse publiée par: alexespinosa

    possible answers: -6, 6, using reverse operation method

    (opposite of subtraction, use addition)

    18 + 30 = 48

    (opposite of division, use multiplication

    48 x 3 = 144

    (opposite of square, use square root and can be splitted into 2 operations)

    √144

    =-12 or 12

    (opposite of multiplication, use division)

    = -12 / 2 or 12/2

    = -6 or 6

  • Réponse publiée par: enrica11

    answer:

    vertex angle is 66°

    step-by-step explanation:

    in an isosceles triangle the two base angles are congruent. the third angle is the vertex angle. in any triangle the sum of the three angles will be 180°.

    let v = the vertex angle

    let b = each of the base angles

    v + b + b = 180°

    v = b + 9 (the vertex angle of an isosceles triangle is 9 degrees more than a base angle)

    substitute b + 9 for v, in the equation v + b + b = 180°

    (b + 9) + b + b = 180° combine like terms to simplify

    3b + 9 = 180° subtract 9 from both sides

    3b = 171° divide both sides by 3

    b = 57°

    v = b + 9° => v = 57° + 9° = 66°

    check: 57° + 57° + 66° = 180°

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What percent of php 850 is php 1000​...