Combine the like terms to create an equivalent expression: -3r- 6+ (-1)

Mathematics

2 answers:

Norma-Jean [14]2 years ago

7 0

Answer:

-3r+5 is that answer hdj

GenaCL600 [577]2 years ago

5 0

Answer:

-3x-7

Step-by-step explanation:

-6 + -1 = -7

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Can you please help me out

Taya2010 [7]

The bag contains,

Red (R) marbles is 9, Green (G) marbles is 7 and Blue (B) marbles is 4,

Total marbles (possible outcome) is,

$\text{Total marbles = (R) + (G) +(B) = 9 + 7 + 4 = 20 marbles}$

Let P(R) represent the probablity of picking a red marble,

P(G) represent the probability of picking a green marble and,

P(B) represent the probability of picking a blue marble.

Probability , P, is,

$\text{Prob, P =}\frac{required\text{ outcome}}{possible\text{ outcome}}$ $\begin{gathered} P(R)=\frac{9}{20} \\ P(G)=\frac{7}{20} \\ P(B)=\frac{4}{20} \end{gathered}$

Probablity of drawing a Red marble (R) and then a blue marble (B) without being replaced,

That means once a marble is drawn, the total marbles (possible outcome) reduces as well,

$\begin{gathered} \text{Prob of a red marble P(R) =}\frac{9}{20} \\ \text{Prob of }a\text{ blue marble =}\frac{4}{19} \\ \text{After a marble is selected without replacement, marbles left is 19} \\ \text{Prob of red marble + prob of blue marble = P(R) + P(B) = }\frac{9}{20}+\frac{4}{19}=\frac{251}{380} \\ \text{Hence, the probability is }\frac{251}{380} \end{gathered}$

Hence, the best option is G.

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1 year ago

If you wanted to find the difference of 6/25-4/5 what common denominator should you choose and why?

sveticcg [70]

25 because it s a less common denominaor

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3 years ago

How many solutions are there to the quadratic equation

Ray Of Light [21]

Answer:

Step-by-step explanation: