Evaluate the expression when x-10- y-2- and z-5-2z-y

Step 1: On substituting value of y and z in given expression 2z/y we get,=2( 5)/ 2Step 2: = 10/ 20ex0ex=+5(The quotient of integers with the same signs is nega ...

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Standard X

Mathematics

Properties of Inequalities

Evaluate the ...

Question

Evaluate the expression when $x = 10, y = - 2, a n d z = - 5$ .
$\frac{2 z}{y}$

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Solution

Step 1: On substituting value of y and z in given expression $\frac{2 z}{y}$ we get,
$= \frac{2 (- 5)}{- 2}$
Step 2: $= \frac{- 10}{- 2} = + 5$
(The quotient of integers with the same signs is negative)
Final Answer: The expression is $+ 5$ .

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Evaluate the expression when x=10,y=-2,andz=-5.2zy

Step 1: On substituting value of y and z in given expression 2zy we get,=2(-5)-2Step 2: =-10-2=+5(The quotient of integers with the same signs is negative)Final Answer: The expression is +5.

Evaluate the expression when $x = 10, y = - 2, a n d z = - 5$ .
$\frac{2 z}{y}$

Step 1: On substituting value of y and z in given expression $\frac{2 z}{y}$ we get,
$= \frac{2 (- 5)}{- 2}$
Step 2: $= \frac{- 10}{- 2} = + 5$
(The quotient of integers with the same signs is negative)
Final Answer: The expression is $+ 5$ .