Integer operations Quiz 1

Question 1

Tick the correct answer for $$\dfrac{{( - 3 	imes 6 + 3)}}{{ - 6}}$$

Accepted Answer

$$\dfrac{5}{2}$$

Answer

$$ - \dfrac{5}{2}$$

Answer

$$\dfrac{3}{2}$$

Answer

$$ - \dfrac{3}{2}$$

Question 2

Solve $$\dfrac{{[5 + 6 - 9(3)]}}{{3x}} = 2$$ for the value of $$x$$.

Accepted Answer

$$ - \dfrac{8}{3}$$

Answer

$$ - \dfrac{8}{9}$$

Answer

$$\dfrac{8}{9}$$

Answer

$$\dfrac{8}{3}$$

Question 3

In the final examination there were $$30$$ questions. $$5$$ marks were given for each correct answer. $$ - 2$$ marks were given for each incorrect answer. Riya got $$21$$ correct answers and $$9$$ incorrect answers. What was her total score?

Accepted Answer

$$87$$

Answer

$$\dfrac{8}{3}$$

Answer

$$85$$

Answer

$$47$$

Question 4

Solve $$\dfrac{{[7 	imes ( - 3) + 2 - 6x]}}{{ - 3}} = 1$$ for $$x$$.

Accepted Answer

$$ - \dfrac{8}{3}$$

Answer

$$\dfrac{8}{3}$$

Answer

$$\dfrac{8}{9}$$

Answer

$$ - \dfrac{8}{9}$$

Question 5

The change in the rate of the temperature on Monday was $$ - {3^\circ}C$$ per hour. How long would it take for the change in temperature to be $$ - {27^\circ}C$$?

Accepted Answer

$$9$$

Answer

$$6$$

Answer

$$5$$

Answer

$$7$$