i NEED HELP with this math please!!?

The expression 4x-3 will equal 5 when x equals=1,2,3,4,5,

Sue and Fred have a combined age of 42 years. If Sue's age is 1/2 of Fred's, how old is Fred in years?16,20,23,28,35

Jane spent 2/3 of her savings on a used car, and she spent 1/4 of her remaining savings on a new carpet. If the carpet cost her $250, how much were Jane's original savings?1000,1200,1500,2000,3000

If "a" pens cost "b" dollars, how many dollars would "c" pens cost at the same rate?ab/c,a/bc,b/ac,bc/a,c/ba

A bus travels the first 5 miles of its route in 20 minutes. If the rest of the route measures 10 miles, and the bus continues to travel at the same speed, in how many hours will the bus complete the entire route?1,2,2.5,3,4

Tickets for a raffle are numbered consecutively. If John sold tickets numbered 67 through 186, inclusive, how many tickets did he sell?117,118,119,120,121

On a street with 24 houses, 9 houses have fewer than 6 rooms, 8 houses have more than 7 rooms, and 4 house have more than 8 room. What is the total number of houses on the street that are either 6-, 7- or 8-room houses?8,9,11,13,19

Which of the following fractions is closest to the decimal 0.35?1/3,3/5,3/8,5/9,1/2

1 Answer

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  • 9 years ago
    Favorite Answer

    1)

    4x - 3 = 5

    4x = 8

    x = 2

    Hence, answer is x = 2

    2)

    42 / 3 = 14

    14 x 2 = 28

    Fred is 28 years old

    3)

    2/3 = 8/12

    1/4 of 4/12 = 1/12

    1/12 of money = $250

    original money = $250 x 12 = $3000

    4)

    (bc / a)

    5)

    5 miles = 20 minutes = 1/3 hour

    total distance = 5 + 10 = 15 miles

    Total time taken = (15 / 5) x (1/3) = 1 hour

    6)

    Number of tickets sold = (186 - 67) + 1 = 120 tickets

    7)

    24 - 9 - 8 = 7

    7 houses has 6 or 7 rooms

    8 - 4 = 4

    4 houses have 8 rooms

    Total number of houses with 6, 7 or 8 rooms = 7 + 4 = 11 houses

    8)

    1/3

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