Quiz about January 10 - January 14 Raider Prep Math 8

Question 1

Which statement is true?

Accepted Answer

$$\frac{1}{3}>4.1 imes10^{-3}$$

Answer

$$\frac{5}{6}>0.91$$

Answer

$$6.2 imes10^{-2}>\frac{3}{5}$$

Answer

$$43\%<0.050$$

Question 2

Which list is in order from least to greatest?

Accepted Answer

$$0.067,\frac{5}{8},6.3 imes10^{-1},67\%$$

Answer

$$0.067,\ 6.3 imes10^{-1},\frac{5}{8},67\%$$

Answer

$$67\%,6.3 imes10^{-1},\frac{5}{8},0.067$$

Answer

$$67\%,0.067,\frac{5}{8},6.3 imes10^{-1}$$

Question 3

Select all real number subsets to which the numbers in the set belong.

$$\left\{\frac{12}{3},-\sqrt[]{256},200\%\right\}$$

Accepted Answer

Rational Numbers

Answer

Integers

Answer

Irrational Numbers

Answer

Natural Numbers

Answer

Whole Numbers

Question 4

Simplify the expression:

$$5x-3x+3-4-x-1$$

Accepted Answer

$$x-2$$

Answer

$$x$$

Answer

$$2x-2$$

Answer

$$2x$$

Question 5

An isosceles triangle has a perimeter of 30 units. What is the value of $$x$$ ?

Accepted Answer

19

Answer

-23

Answer

25.5

Answer

22.5

Question 6

What is the solution to the equation shown:

$$1.5x+12=0.75\left(4x-12\right)$$

Accepted Answer

$$14$$

Answer

$$4.\overline{6}$$

Answer

$$-42$$

Answer

$$22$$

Question 7

The coach has $400 to spend on the end of the season party. She purchases awards for $80 and decorations for $35. She will use the remaining money to order pizza. If pizzas cost $12 each, what is the most pizzas she can buy?

Accepted Answer

23 pizzas

Answer

24 pizzas

Answer

42 pizzas

Answer

43 pizzas

Question 8

Solve:

$$\frac{4x+6}{7}<2$$

Accepted Answer

$$x<2$$

Answer

$$x>7$$

Answer

$$x>-7$$

Answer

$$x<-2$$

Question 9

Maggie opened a new savings account and deposited $200. She will deposit $50 into the account each week, $$w$$ , and will make no withdrawals. The equation $$t=50w+200$$ shows how she will calculate the total amount in the account, $$t$$ , after each deposit. Which of the following is the independent variable?

Accepted Answer

w

Answer

$200

Answer

$50

Answer

t

Question 10

The total cost, $$t$$ , for frozen yogurt depends on the weight, $$w$$ , in ounces. If Freddy's Frozen Yogurt Shop uses the equation $$t=0.34w+2$$ to determine the cost of the yogurt, which represents the dependent variable in this situation?

Accepted Answer

t

Answer

0.34

Answer

w

Answer

2

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