##### Algebra Basics: comprobación de requisito previo

Enseñamos conceptos difíciles con las palabras más simples posibles. Vamos a corroborar que conozcas los términos y las ideas que se necesitan. Este curso es el correcto si obtienes al menos 80% en esta prueba, pero menos del 70 % de la place-out test

Tiempo restante:

10:00

1.

Which of these numbers is the largest?

$\displaystyle \frac{2}{5}$

$0.45$

$\displaystyle \frac{1}{3}$

$\displaystyle \frac{11}{30}$

$0.7^2$

2.

A class has $16$ girls and $24$ boys. What is the ratio of boys to girls, as a fraction in simplest form?

$\displaystyle \frac{16}{24}$

$\displaystyle \frac{2}{3}$

$\displaystyle \frac{3}{2}$

$\displaystyle \frac{24}{16}$

$\displaystyle \frac{3}{5}$

3.

If a $40$-inch-tall person grows by $25\%$, how many inches tall is the person after growing?

$50$

$40.25$

$65$

$10$

$44$

4.

If a car drives at a speed of $35$ miles per hour for $12$ minutes, how many miles will it go?

$420$

$35$

$\frac{35}{12}$

$17.5$

$7$

5.

Find the value of $0.125 \times 888.$

$444$

$109.40$

$111$

$11.1$

$111000$

6.

Find the simplified form of $\frac{13}{117}.$

$\displaystyle \frac{1}{9}$

$\displaystyle \frac{1}{19}$

$\displaystyle \frac{1}{17}$

$\displaystyle \frac{13}{117}$

$\displaystyle \frac{1}{13}$

7.

How many $x$'s are there in

$\frac{1}{2} x + \frac{1}{2} x + \frac{1}{2} x ?$

$3$

$2$

$1.5$

$1$

$0.5$

8.

The reciprocal of a non-zero variable $x$ is equal to:

$\displaystyle \frac{x}{10}$

$\displaystyle \frac{1}{x}$

$x-1$

$-x$

$1-x$

9.

$\sqrt{5} + \sqrt{5} = ?$

$\sqrt{10}$

$5$

$\displaystyle \frac{2}{5}$

$2\sqrt{5}$

$4\sqrt{5}$