3 years ago

A student simplified a rational expression as

Mathematics

2 answers:

storchak [24]3 years ago

8 0

Answer:

The student could not divide out (2 – x) and (x – 2) as written.

Step-by-step explanation:

B is the correct answer.

Pani-rosa [81]3 years ago

5 0

Answer:

B) The student could not divide out (2 – x) and (x – 2) as written.

Step-by-step explanation:

⭐

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The increased demand for vegetarian meals has caused an increase in the price of tofu. If the current cost of $2.99 per pound is

aliina [53]

Answer:

R90,70

Step-by-step explanation:

$2.99 \times \frac{6}{100} \times 5 =$

7 0

3 years ago

n a particular day, the wind added 2 miles per hour to Alfonso's rate when he was cycling with the wind and subtracted 2 miles p

goldfiish [28.3K]

Recall your d = rt, or distance = rate * time

notice, the time he took to cover 63 miles with the wind, is the same amount of time he took against it with 51 miles only, let's say, he took "t" hours long
and he was cycling at a rate of "r"

thus $\bf \begin{array}{lccclll}
&distance&rate&time\\
&-----&-----&-----\\
\textit{with the wind}&63&r+2&t\\
\textit{against the wind}&51&r-2&t
\end{array}\\\\
-----------------------------\\\\

\begin{cases}
63=(r+2)t\implies \cfrac{63}{r+2}=\boxed{t}\\\\
51=(r-2)t\\
----------\\
51=(r-2)\left( \boxed{\cfrac{63}{r+2}} \right)
\end{cases}$

solve for "r"

8 0

3 years ago

Solve. 8/5 = -15- 7z/30

xxTIMURxx [149]

Answer:

-138/7

Step-by-step explanation:

use l.c.m . Or multiply through by 30.