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kirill [66]
1 year ago
14

3 1/4 - 1 3/5 | please help !!

Mathematics
1 answer:
Luba_88 [7]1 year ago
6 0

Answer:

Step-by-step explanation:

Step: 1: Convert mixed fraction to improepr fraction.

Step: 2 : Find the LCM of 4 , 5 = 20

Step 3: Find equivalent fractions with denominator as 20

Step 4: Now subtract.

3\dfrac{1}{4}-1\dfrac{3}{5}=\dfrac{13}{4}-\dfrac{8}{5}

             \sf = \dfrac{13*5}{4*5}-\dfrac{8*4}{5*4}\\\\\\     = \dfrac{65}{20}-\dfrac{32}{20}\\\\\\    = \dfrac{65-32}{20}\\\\\\    = \dfrac{33}{20}\\\\  \\    = 1 \dfrac{13}{20}

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3 years ago
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kobusy [5.1K]

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Step-by-step explanation:

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(x+2)(x-3)(x+5) is identical to x^(3)+ax^(2)-11x+b<br> Find the value of a and the value of b
lutik1710 [3]

Answer:

a = 4 and b = - 30

Step-by-step explanation:

Expand the left side and compare like terms on both sides, that is

(x + 2)(x - 3)(x + 5) ← expand the first pair of factors using FOIL

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Compare like terms with x³ +ax² - 11x + b

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3 years ago
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olasank [31]

Answer:

30.8936

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Pressure guage reading is 8% lower than tbe actual pressure.

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