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Fynjy0 [20]
3 years ago
5

Antonia and Carla have the same percentage of green marbles in their bags of marbles. Antonia has 4 green green marbles and 16 t

otal marbles. Carla has 10 green marbles. How many of Carlas marbles are not green?
Mathematics
1 answer:
natulia [17]3 years ago
7 0
Given that Antonia and Carla have the same percentage of marbles and Antonia has 4 green marbles out of 16 marbles , to calculate the number of marbles that Carla has that aren't green we proceed as follows;
let the total number of Carla's marbles be x;
the percentage of green marbles that Antonia has is:
4/16×100=25%

since they have the same percentage then:
number of green marbles Carla has is 10:
this is 25% of x, hence:
10/x×100=25
1000/x=25
1000=25x
thus
x=1000/25
x=40
Carla has a total of 40 marbles. Thus the number of marbles which are not green will be:
40-10=30 marbles


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<h3>What is an equivalent expression?</h3>

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Using k = 5

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<u>Complete question:</u>

Consider the expressions 5 + 8k and 8k + 5. Determine why the expressions are equivalent.

Using k = 3 5 + 8k 8k + 5 5 + 8(3) 8(3) + 5 5 + 24 = 29 24 + 5 = 29

Using k = 5 5 + 8k 8k + 5 5 + 8(5) 8(5) + 5 5 + 40 = 45 40 + 5 = 45

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If both expressions have the same value after substituting and simplifying two different values for the variable, then they are.

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3 0
2 years ago
In sakura’s garden, for every 5 red flowers, there are 10 yellow flowers. There are a total of 75 yellow and red flowers in her
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The first thing we must do for this case is to define variables.
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there are 25 red flowers in Sakura's garden
5 0
4 years ago
Can anyone please help me with this?
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34kurt

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3 years ago
What is the percent for;
lesantik [10]

Answer:

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Step-by-step explanation:

First you have to make it into a fraction, then multiply it by 100 :

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0.25 =  \frac{25}{100}

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8 0
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