Question

Which expressions are equivalent to 35+30s-45t35+30s−45t35, plus, 30, s, minus, 45, t?

Answer 1

Answer:

es C y B yo lo hice en Khan Academy

The answer is B and C i did in Khan Academy

Step-by-step explanation:

cause' I'm smart

Answer 2

Answer:

The correct option is B. $5(7+6s-9t)$ and C. $(-35-30s+45t)\times (-1)$.

Step-by-step explanation:

Consider the provided expression.

$35 + 30s - 45t$

Option (A): $7\cdot(5+30s-45t)$

Open parenthesis.

$35+210s-315t$

Which is not equal to the provided expression.

Option (B) $5(7+6s-9t)$

Open parenthesis.

35+30s-45t

Which is equal to the provided expression.

Option (C) $(-35-30s+45t)\times (-1)$

Open parenthesis.

$35+30s-45t$

Which is equal to the provided expression.

Option (D) $10\times(3.5+3s-4.5)$

$35+30s-45$

Which is not equal to the provided expression.

Option (E) $(\frac{35}{2}- 15s + \frac{45t}{2}) \cdot(-2)$

Open parenthesis.

$-35+30s-45t$

Which is not equal to the provided expression.

Hence, the correct option is B. $5(7+6s-9t)$ and C. $(-35-30s+45t)\times (-1)$.