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3 years ago

Solve: 18/20 - 3/5 = ?

Mathematics

2 answers:

aivan3 [116]3 years ago

8 0

Answer; 1

Step-by-step explanation:

18/20-3/5

15/15

Alinara [238K]3 years ago

5 0

Answer:

6/20 or 3/10

Step-by-step explanation:

You just convert the second fraction's denominator to equal the first's (and modify the numerator accordingly), then subtract the numerators, in this instance, you muliply the 5 by 4 and what you do the bottom, you must do to the top, so you multiply 3 by 4 and get 12. 18 - 12 = 6, giving you 6/20, which converted is 3/10.

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3 years ago

15/4 in to equal mixed number

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Answer:

3 3/4

Step-by-step explanation:

$\dfrac{15}{4}=\dfrac{12+3}{4}=\dfrac{12}{4}+\dfrac{3}{4}\\\\=3+\dfrac{3}{4}=\boxed{3\dfrac{3}{4}}$

The integer part of the mixed number is the quotient when the numerator is divided by the denominator. The remainder from that division is the numerator of the fraction.

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3 years ago

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3 years ago

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Step-by-step explanation:

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3 years ago

Evaluating Piecewise Functions: Please explain your answer. Thank you.

Mama L [17]

Answer:

f(-1) is undefined.

Step-by-step explanation:

We are given:

$f(x) = \left\{ \begin{array}{ll} -3x-11 & \quad x \leq -5\\ 2 & \quad x > 5 \end{array} \right.$

And we want to find f(-1).

The piecewise function only gives us values for x-values less than or equal to -5 or greater than 5.

Since -1 is fits neither of those conditions, it is not defined.

Our answer is undefined.

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2 years ago