I need help with this question attached

I need help with this question attached


[tex]I need help with this question attached[/tex]
[tex]I need help with this question attached[/tex]

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  1. First, start off with the number of double basses. the question says there are 4. now, add up all of the numbers of instruments in order to find the total. 7+4+11+11+11=44 (three 11’s for the first violins, second violins and violas). now since you’re comparing the double basses to the total amount, the ratio is 4/44. You can also simplify this ratio by dividing both numbers by 4, which will become 1/11. Now, in order to find the decimal, just divide the fraction. 1/11=.09 repeating. Hope this helped!

  2. 1)

    90g strawberry jelly

    6 sponge fingers

    315ml custard

    135g tinned fruit

    2) 260 cm²

    Step-by-step explanation:

    1) 120/4 × 3

    90g strawberry jelly

    8/4 × 3

    6 sponge fingers

    420/4 × 3

    315ml custard

    180/4 × 3

    135g tinned fruit

    2) area = base × height

    = 20 × 13

    = 260 cm²

  3. A. Equation 1: x + y = 18

       Equation 2: x + 2y = 25

    B. The lesser number is 7 and the greater number is 11

    Step-by-step explanation:

    We come up with two equations with the information:

    Equation 1: x + y = 18

    Equation 2: x + 2y = 25

    We solve the equation by substituting x (which is in terms of y):

    x = 18 - y

    (18 - y) + 2y = 25

    y = 7

    Now we substitute y into Equation 1:

    x + 7 = 18

    x = 11

  4. QR = 22.4

    Step-by-step explanation:

    We would apply the law of Cosines which is expressed as

    a² = b² + c² - 2abCosA

    Where a,b and c are the length of each side of the triangle and A is the angle corresponding to a. Likening the expression to the given triangle, it becomes

    QR² = RS² + QS² - 2(RS × QS)CosS

    QR² = 35² + 40² - 2(35 × 40)Cos34

    QR² = 1225 + 1600 - 2(1400)Cos34

    QR² = 2825 - 2800 × 0.8290

    QR² = 2825 - 2321.2

    QR² = 503.8

    QR = √503.8

    QR = 22.4 to the nearest tenth

  5. 1)

    80 = 2×2×2×2×5

    2)

    21 -- 11 -- 8 -- 40

    21 -- 15 -- 24 -- 60

    Step-by-step explanation:

    80 = 2×2×2×2×5

    Half Tuna white: 21

    Half brown: 21

    25% of 32

    25/100 × 32 = 8

    32-8 = 24

    Total brown: (100-20)/2 = 40

    Total white = 60

    Cheese:

    40 - 21 - 8 = 11

    60 - 21 - 24 = 15

    21 -- 11 -- 8 -- 40

    21 -- 15 -- 24 -- 60

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