4 years ago

Please help!!!!

Mathematics

1 answer:

nika2105 [10]4 years ago

5 0

Answer:

dfgdfg

Step-by-step explanation:

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you have 4 red marbles,5 green,7 blue. What is the probability of selecting a red marble, replacing it, and selecting a blue.Wha

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The answer would be 28/240, but if you were to simplify it would be 7/60

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3 years ago

Solve the following system of equations by the substitution method.

ruslelena [56]

5x = y + 6 (I)
2x - 3y = 4 (II)
-------------------
We have:
5x = y + 6 → $x = \frac{y+6}{5}$

Soon:
2x - 3y = 4 → $2* (\frac{y+6}{5}) - 3y = 4\to \frac{2y+12}{5} - 3y = 4$
<span>least common multiple (5)
</span> $\frac{2y+12}{5} - 3y = 4\to \frac{2y+12}{\diagup\!\!\!\!\!5} - \frac{15y}{\diagup\!\!\!\!\!5} = \frac{20}{\diagup\!\!\!\!\!5}$
$2y + 12 - 15y = 20$
$- 15y + 2y = 20 - 12$
$- 13y = 8$
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4 0

4 years ago

ANSWER ASAP!!!!! 20 POINTS + BRAINLIEST!!!!!!!!

Temka [501]

Answer:

5(a-b)=3(a+b)

5a-5b=3a+3b

2a-2b=0

2a=2b

a=b

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Step-by-step explanation:

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3 years ago

Evaluate. Write your answer as a fraction or whole number without exponents. 3^–4 =

AlladinOne [14]

Answer:

1/81.

Step-by-step explanation:

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= 1/81.

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3 years ago

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It would be 150+300 which equals 450.

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3 years ago

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