A jar contains 30 marbles. It has 10 red, 6 black and 14 green marbles. Two marbles are drawn, the first is not returned before
1 answer:
<u>Answer:</u>
The correct answer option is P (both green) = 91 / 435
<u>Step-by-step explanation:</u>
We are given that in a jar containing 30 marbles, 10 are red, 6 are black and 14 are green.
Two marbles are drawn and the second one is drawn without returning the first marble and we are to find the probability of getting green marbles both time.
P (both green) = = 91 / 435
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Answer:
6 inches of tape
Step-by-step explanation:
To find the total amount of tape that Marge used, you can take the measure of each piece () and multiply by the total number of pieces cut (16):
So, Marge used 6 inches of tape altogether.
We are given dimensions of model and actual figure.
model: 9.5cm actual : 30.5m.
We need to find the length of actual shape for the scale factor 5cm.
Let us assume actual length be x m.
Let us set a proportion now.
<h3>5 : x = 9.5 : 30.5</h3>Let us convert proportion into fractions.
On cross multiplying, we get
9.5x = 5× 30.5
9.5x = 152.5.
On dividing both sides by 9.5, we get
x=16.05.
<h3>Therefore, the scale factor for a model is 5cm= 16.05 m.</h3>