3 years ago

What is the value of (6a-2)

1 answer:

7 0

It totally depends on the value of 'a', and if 'a' changes, then (6a-2) immediately changes too. Whatever 'a' is at the moment, (6a-2) is 2 less than 6 times 'a'.

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A bag has 5 red marbles, 4 blue marbles, 8 green marbles, and 3 yellow

kozerog [31]

Answer:

40% of the total marbles are green.

Step-by-step explanation:

Percentage: Green marbles/Total marbles

=> 8/5 + 4 + 8 + 3
=> 8/20

Percentage formula: $\frac{a}{b} (100)$

=> 8/20 x 100
=> 8 x 5
=> 40

Hence, 40% of the total marbles are green.

Hoped this helped.

$BrainiacUser1357$

7 0

3 years ago

twelve students have an equally likely chance of being selected in a drawing at school. eight are girls and four are boys. what

andriy [413]

Answer:

33% chance

Step-by-step explanation:

there are 12 students total and there are two groups of students, boys and girls, 8 girls 4 boys so we take that and convert it to a fraction which would make 2/3 girls and 1/3 boys, so that would mean that boys have a 33% chance of being selected

8 0

3 years ago

Please help if i get this wrong i will fail

LUCKY_DIMON [66]

The answer is either b or c

3 0

3 years ago

Read 2 more answers

Explain why a change from 20 to 40 is a 100% increase, but a change from 40 to 20 is a 50% decrease.

Rainbow [258]

Answer:

Because 20 has to be doubled to become 40. While 40 is twice as much as 20 so you just divide 40 by 20 to get 50%.

Explanation:

20 x 20 = 40 = 100%

40 / 20 = 50%

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3 years ago

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galben [10]

Answer:

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Step-by-step explanation:

7 0

3 years ago